./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/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 31da98a788dd1938c78053bade42bc512d4e8954 ................................................................................................................................................................................................................................................................................................................................................................. 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_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/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 31da98a788dd1938c78053bade42bc512d4e8954 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:09:41,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:09:41,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:09:41,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:09:41,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:09:41,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:09:41,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:09:41,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:09:41,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:09:41,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:09:41,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:09:41,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:09:41,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:09:41,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:09:41,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:09:41,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:09:41,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:09:41,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:09:41,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:09:41,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:09:41,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:09:41,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:09:41,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:09:41,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:09:41,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:09:41,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:09:41,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:09:41,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:09:41,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:09:41,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:09:41,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:09:41,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:09:41,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:09:41,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:09:41,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:09:41,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:09:41,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:09:41,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:09:41,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:09:41,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:09:41,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:09:41,686 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:09:41,710 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:09:41,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:09:41,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:09:41,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:09:41,722 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:09:41,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:09:41,723 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:09:41,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:09:41,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:09:41,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:09:41,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:09:41,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:09:41,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:09:41,724 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:09:41,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:09:41,725 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:09:41,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:09:41,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:09:41,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:09:41,727 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:09:41,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:09:41,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:09:41,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:09:41,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:09:41,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:09:41,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:09:41,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:09:41,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:09:41,729 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_8f8dab31-a2e6-490c-993d-1366f64af0e2/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 -> 31da98a788dd1938c78053bade42bc512d4e8954 [2019-11-15 20:09:41,755 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:09:41,765 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:09:41,768 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:09:41,769 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:09:41,769 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:09:41,770 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2019-11-15 20:09:41,819 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/data/c5fce37a8/a5f646e8b75a4924ab37932bafd54863/FLAGff32c944b [2019-11-15 20:09:42,237 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:09:42,238 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2019-11-15 20:09:42,244 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/data/c5fce37a8/a5f646e8b75a4924ab37932bafd54863/FLAGff32c944b [2019-11-15 20:09:42,607 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/data/c5fce37a8/a5f646e8b75a4924ab37932bafd54863 [2019-11-15 20:09:42,609 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:09:42,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:09:42,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:09:42,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:09:42,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:09:42,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:09:42" (1/1) ... [2019-11-15 20:09:42,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d9e132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:42, skipping insertion in model container [2019-11-15 20:09:42,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:09:42" (1/1) ... [2019-11-15 20:09:42,624 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:09:42,640 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:09:42,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:09:42,871 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:09:42,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:09:42,926 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:09:42,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:42 WrapperNode [2019-11-15 20:09:42,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:09:42,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:09:42,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:09:42,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:09:42,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:42" (1/1) ... [2019-11-15 20:09:42,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:42" (1/1) ... [2019-11-15 20:09:42,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:09:42,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:09:42,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:09:42,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:09:42,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:42" (1/1) ... [2019-11-15 20:09:42,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:42" (1/1) ... [2019-11-15 20:09:42,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:42" (1/1) ... [2019-11-15 20:09:42,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:42" (1/1) ... [2019-11-15 20:09:42,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:42" (1/1) ... [2019-11-15 20:09:42,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:42" (1/1) ... [2019-11-15 20:09:42,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:42" (1/1) ... [2019-11-15 20:09:42,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:09:42,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:09:42,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:09:42,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:09:42,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/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 [2019-11-15 20:09:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 20:09:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:09:43,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:09:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 20:09:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:09:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:09:43,357 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:09:43,357 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-15 20:09:43,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:09:43 BoogieIcfgContainer [2019-11-15 20:09:43,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:09:43,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:09:43,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:09:43,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:09:43,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:09:42" (1/3) ... [2019-11-15 20:09:43,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9469111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:09:43, skipping insertion in model container [2019-11-15 20:09:43,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:42" (2/3) ... [2019-11-15 20:09:43,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9469111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:09:43, skipping insertion in model container [2019-11-15 20:09:43,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:09:43" (3/3) ... [2019-11-15 20:09:43,365 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230.c [2019-11-15 20:09:43,373 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:09:43,379 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:09:43,388 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:09:43,409 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:09:43,409 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:09:43,410 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:09:43,410 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:09:43,410 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:09:43,410 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:09:43,410 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:09:43,410 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:09:43,425 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-15 20:09:43,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 20:09:43,431 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:09:43,432 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:09:43,433 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:09:43,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:43,439 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2019-11-15 20:09:43,445 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:09:43,445 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468385610] [2019-11-15 20:09:43,445 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:43,445 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:43,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:09:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:09:43,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:09:43,526 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468385610] [2019-11-15 20:09:43,526 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:09:43,527 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:09:43,527 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917620357] [2019-11-15 20:09:43,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:09:43,530 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:09:43,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:09:43,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:09:43,541 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-11-15 20:09:43,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:09:43,556 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2019-11-15 20:09:43,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:09:43,558 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 20:09:43,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:09:43,565 INFO L225 Difference]: With dead ends: 54 [2019-11-15 20:09:43,565 INFO L226 Difference]: Without dead ends: 25 [2019-11-15 20:09:43,567 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:09:43,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-15 20:09:43,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-15 20:09:43,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-15 20:09:43,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-11-15 20:09:43,594 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2019-11-15 20:09:43,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:09:43,594 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-11-15 20:09:43,594 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:09:43,594 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2019-11-15 20:09:43,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 20:09:43,595 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:09:43,595 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:09:43,595 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:09:43,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:43,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2019-11-15 20:09:43,596 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:09:43,596 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000629353] [2019-11-15 20:09:43,596 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:43,596 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:43,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:09:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:09:43,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:09:43,675 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000629353] [2019-11-15 20:09:43,675 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:09:43,675 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 20:09:43,675 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682323983] [2019-11-15 20:09:43,677 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 20:09:43,677 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:09:43,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 20:09:43,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:09:43,678 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 4 states. [2019-11-15 20:09:43,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:09:43,772 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2019-11-15 20:09:43,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 20:09:43,773 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-15 20:09:43,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:09:43,774 INFO L225 Difference]: With dead ends: 41 [2019-11-15 20:09:43,774 INFO L226 Difference]: Without dead ends: 36 [2019-11-15 20:09:43,775 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:09:43,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-15 20:09:43,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2019-11-15 20:09:43,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-15 20:09:43,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-11-15 20:09:43,785 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2019-11-15 20:09:43,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:09:43,785 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-15 20:09:43,786 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 20:09:43,786 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-11-15 20:09:43,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 20:09:43,787 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:09:43,788 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:09:43,788 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:09:43,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:43,789 INFO L82 PathProgramCache]: Analyzing trace with hash -555778251, now seen corresponding path program 1 times [2019-11-15 20:09:43,789 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:09:43,789 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317082095] [2019-11-15 20:09:43,790 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:43,791 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:43,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:09:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:09:43,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:09:43,852 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317082095] [2019-11-15 20:09:43,852 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:09:43,852 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 20:09:43,852 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418542872] [2019-11-15 20:09:43,853 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 20:09:43,853 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:09:43,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 20:09:43,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:09:43,854 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 4 states. [2019-11-15 20:09:43,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:09:43,925 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2019-11-15 20:09:43,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 20:09:43,927 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-15 20:09:43,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:09:43,928 INFO L225 Difference]: With dead ends: 43 [2019-11-15 20:09:43,928 INFO L226 Difference]: Without dead ends: 38 [2019-11-15 20:09:43,929 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:09:43,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-15 20:09:43,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2019-11-15 20:09:43,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-15 20:09:43,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-11-15 20:09:43,934 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 14 [2019-11-15 20:09:43,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:09:43,934 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-15 20:09:43,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 20:09:43,934 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-11-15 20:09:43,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 20:09:43,935 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:09:43,935 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:09:43,936 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:09:43,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:43,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2019-11-15 20:09:43,936 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:09:43,936 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514805704] [2019-11-15 20:09:43,936 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:43,937 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:43,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:09:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:09:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:09:44,042 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:09:44,043 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 20:09:44,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:09:44 BoogieIcfgContainer [2019-11-15 20:09:44,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:09:44,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:09:44,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:09:44,067 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:09:44,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:09:43" (3/4) ... [2019-11-15 20:09:44,070 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:09:44,070 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:09:44,072 INFO L168 Benchmark]: Toolchain (without parser) took 1461.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -110.0 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:09:44,073 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:09:44,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -182.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-15 20:09:44,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.15 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. [2019-11-15 20:09:44,075 INFO L168 Benchmark]: Boogie Preprocessor took 29.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:09:44,075 INFO L168 Benchmark]: RCFGBuilder took 366.71 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:09:44,076 INFO L168 Benchmark]: TraceAbstraction took 706.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:09:44,076 INFO L168 Benchmark]: Witness Printer took 3.52 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. [2019-11-15 20:09:44,079 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 316.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -182.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 366.71 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 706.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.52 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: 59]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 54. Possible FailurePath: [L54] float x = 0.0f / 0.0f; [L55] float y = 0.0f / 0.0f; [L12] __uint32_t w; [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (w) = gf_u.word [L20] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L22-L23] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L25-L26] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L28] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L31] return 0; [L35] COND TRUE __fpclassify_float(x) == 0 [L36] return y; [L56] float res = fmin_float(x, y); [L44] return x != x; [L58] COND TRUE !isnan_float(res) [L59] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 110 SDtfs, 22 SDslu, 110 SDs, 0 SdLazy, 30 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 20:09:46,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:09:46,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:09:46,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:09:46,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:09:46,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:09:46,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:09:46,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:09:46,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:09:46,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:09:46,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:09:46,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:09:46,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:09:46,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:09:46,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:09:46,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:09:46,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:09:46,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:09:46,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:09:46,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:09:46,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:09:46,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:09:46,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:09:46,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:09:46,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:09:46,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:09:46,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:09:46,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:09:46,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:09:46,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:09:46,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:09:46,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:09:46,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:09:46,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:09:46,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:09:46,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:09:46,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:09:46,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:09:46,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:09:46,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:09:46,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:09:46,299 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 20:09:46,311 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:09:46,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:09:46,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:09:46,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:09:46,313 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:09:46,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:09:46,314 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:09:46,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:09:46,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:09:46,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:09:46,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:09:46,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:09:46,315 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 20:09:46,315 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 20:09:46,315 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:09:46,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:09:46,315 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:09:46,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:09:46,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:09:46,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:09:46,316 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:09:46,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:09:46,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:09:46,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:09:46,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:09:46,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:09:46,317 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 20:09:46,317 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 20:09:46,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:09:46,318 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 20:09:46,318 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_8f8dab31-a2e6-490c-993d-1366f64af0e2/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 -> 31da98a788dd1938c78053bade42bc512d4e8954 [2019-11-15 20:09:46,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:09:46,356 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:09:46,359 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:09:46,360 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:09:46,361 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:09:46,361 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2019-11-15 20:09:46,413 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/data/7343d5dd7/40e7c0c87d4d4f15a9e1ee3ddfcff11a/FLAGc854c43e5 [2019-11-15 20:09:46,776 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:09:46,777 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2019-11-15 20:09:46,783 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/data/7343d5dd7/40e7c0c87d4d4f15a9e1ee3ddfcff11a/FLAGc854c43e5 [2019-11-15 20:09:47,159 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/data/7343d5dd7/40e7c0c87d4d4f15a9e1ee3ddfcff11a [2019-11-15 20:09:47,161 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:09:47,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:09:47,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:09:47,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:09:47,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:09:47,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:09:47" (1/1) ... [2019-11-15 20:09:47,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@769a3046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:47, skipping insertion in model container [2019-11-15 20:09:47,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:09:47" (1/1) ... [2019-11-15 20:09:47,177 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:09:47,192 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:09:47,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:09:47,367 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:09:47,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:09:47,431 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:09:47,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:47 WrapperNode [2019-11-15 20:09:47,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:09:47,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:09:47,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:09:47,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:09:47,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:47" (1/1) ... [2019-11-15 20:09:47,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:47" (1/1) ... [2019-11-15 20:09:47,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:09:47,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:09:47,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:09:47,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:09:47,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:47" (1/1) ... [2019-11-15 20:09:47,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:47" (1/1) ... [2019-11-15 20:09:47,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:47" (1/1) ... [2019-11-15 20:09:47,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:47" (1/1) ... [2019-11-15 20:09:47,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:47" (1/1) ... [2019-11-15 20:09:47,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:47" (1/1) ... [2019-11-15 20:09:47,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:47" (1/1) ... [2019-11-15 20:09:47,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:09:47,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:09:47,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:09:47,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:09:47,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/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 [2019-11-15 20:09:47,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 20:09:47,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:09:47,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:09:47,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-15 20:09:47,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:09:47,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:09:47,977 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:09:47,977 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-15 20:09:47,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:09:47 BoogieIcfgContainer [2019-11-15 20:09:47,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:09:47,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:09:47,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:09:47,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:09:47,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:09:47" (1/3) ... [2019-11-15 20:09:47,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c16548d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:09:47, skipping insertion in model container [2019-11-15 20:09:47,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:47" (2/3) ... [2019-11-15 20:09:47,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c16548d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:09:47, skipping insertion in model container [2019-11-15 20:09:47,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:09:47" (3/3) ... [2019-11-15 20:09:47,993 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230.c [2019-11-15 20:09:48,003 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:09:48,009 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:09:48,019 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:09:48,039 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:09:48,039 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:09:48,039 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:09:48,039 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:09:48,039 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:09:48,039 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:09:48,039 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:09:48,040 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:09:48,052 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-15 20:09:48,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 20:09:48,059 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:09:48,059 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:09:48,061 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:09:48,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:48,066 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2019-11-15 20:09:48,075 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:09:48,076 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870589317] [2019-11-15 20:09:48,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/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 [2019-11-15 20:09:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:09:48,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 20:09:48,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:09:48,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:09:48,158 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:09:48,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:09:48,162 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870589317] [2019-11-15 20:09:48,162 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:09:48,163 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 20:09:48,163 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299835250] [2019-11-15 20:09:48,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:09:48,167 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:09:48,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:09:48,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:09:48,182 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-11-15 20:09:48,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:09:48,198 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2019-11-15 20:09:48,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:09:48,200 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 20:09:48,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:09:48,207 INFO L225 Difference]: With dead ends: 54 [2019-11-15 20:09:48,208 INFO L226 Difference]: Without dead ends: 25 [2019-11-15 20:09:48,210 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:09:48,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-15 20:09:48,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-15 20:09:48,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-15 20:09:48,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-11-15 20:09:48,240 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2019-11-15 20:09:48,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:09:48,240 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-11-15 20:09:48,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:09:48,241 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2019-11-15 20:09:48,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 20:09:48,241 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:09:48,241 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:09:48,449 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 20:09:48,449 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:09:48,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:48,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2019-11-15 20:09:48,450 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:09:48,450 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483159916] [2019-11-15 20:09:48,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/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 [2019-11-15 20:09:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:09:48,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 20:09:48,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:09:48,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:09:48,537 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:09:48,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:09:48,562 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [483159916] [2019-11-15 20:09:48,562 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:09:48,562 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-15 20:09:48,563 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343718240] [2019-11-15 20:09:48,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 20:09:48,564 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:09:48,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 20:09:48,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 20:09:48,565 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 6 states. [2019-11-15 20:09:48,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:09:48,703 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2019-11-15 20:09:48,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:09:48,705 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-11-15 20:09:48,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:09:48,708 INFO L225 Difference]: With dead ends: 52 [2019-11-15 20:09:48,708 INFO L226 Difference]: Without dead ends: 47 [2019-11-15 20:09:48,709 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-15 20:09:48,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-15 20:09:48,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2019-11-15 20:09:48,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-15 20:09:48,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-11-15 20:09:48,721 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2019-11-15 20:09:48,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:09:48,722 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-15 20:09:48,723 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 20:09:48,723 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-11-15 20:09:48,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 20:09:48,724 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:09:48,725 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:09:48,933 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 20:09:48,933 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:09:48,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:48,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2019-11-15 20:09:48,934 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:09:48,934 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192084141] [2019-11-15 20:09:48,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/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 [2019-11-15 20:09:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:09:48,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 20:09:48,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:09:49,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:09:49,059 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:09:49,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:09:49,107 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1192084141] [2019-11-15 20:09:49,107 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:09:49,107 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-15 20:09:49,107 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688504477] [2019-11-15 20:09:49,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 20:09:49,108 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:09:49,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 20:09:49,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-15 20:09:49,109 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 8 states. [2019-11-15 20:09:49,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:09:49,231 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2019-11-15 20:09:49,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:09:49,233 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-11-15 20:09:49,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:09:49,234 INFO L225 Difference]: With dead ends: 36 [2019-11-15 20:09:49,234 INFO L226 Difference]: Without dead ends: 27 [2019-11-15 20:09:49,235 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-15 20:09:49,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-15 20:09:49,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2019-11-15 20:09:49,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-15 20:09:49,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2019-11-15 20:09:49,239 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 14 [2019-11-15 20:09:49,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:09:49,240 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2019-11-15 20:09:49,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 20:09:49,240 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2019-11-15 20:09:49,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 20:09:49,241 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:09:49,241 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:09:49,449 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 20:09:49,449 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:09:49,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:49,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1012428811, now seen corresponding path program 1 times [2019-11-15 20:09:49,450 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:09:49,450 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782205759] [2019-11-15 20:09:49,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/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 [2019-11-15 20:09:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:09:49,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 20:09:49,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:09:49,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:09:49,547 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:09:49,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:09:49,570 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782205759] [2019-11-15 20:09:49,571 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:09:49,571 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-15 20:09:49,571 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322355696] [2019-11-15 20:09:49,572 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 20:09:49,572 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:09:49,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 20:09:49,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 20:09:49,573 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand 6 states. [2019-11-15 20:09:49,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:09:49,666 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2019-11-15 20:09:49,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:09:49,669 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-15 20:09:49,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:09:49,670 INFO L225 Difference]: With dead ends: 52 [2019-11-15 20:09:49,670 INFO L226 Difference]: Without dead ends: 47 [2019-11-15 20:09:49,671 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-15 20:09:49,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-15 20:09:49,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2019-11-15 20:09:49,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-15 20:09:49,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2019-11-15 20:09:49,676 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 16 [2019-11-15 20:09:49,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:09:49,682 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-11-15 20:09:49,682 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 20:09:49,683 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2019-11-15 20:09:49,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 20:09:49,683 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:09:49,683 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:09:49,896 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-15 20:09:49,897 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:09:49,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:49,897 INFO L82 PathProgramCache]: Analyzing trace with hash -356841937, now seen corresponding path program 1 times [2019-11-15 20:09:49,898 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:09:49,898 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021222060] [2019-11-15 20:09:49,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-15 20:09:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:09:49,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 20:09:49,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:09:50,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:09:50,046 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:09:50,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:09:50,104 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021222060] [2019-11-15 20:09:50,104 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:09:50,104 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-11-15 20:09:50,104 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78383189] [2019-11-15 20:09:50,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 20:09:50,105 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:09:50,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 20:09:50,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-15 20:09:50,106 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand 9 states. [2019-11-15 20:09:50,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:09:50,254 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2019-11-15 20:09:50,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 20:09:50,255 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2019-11-15 20:09:50,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:09:50,256 INFO L225 Difference]: With dead ends: 32 [2019-11-15 20:09:50,256 INFO L226 Difference]: Without dead ends: 23 [2019-11-15 20:09:50,256 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2019-11-15 20:09:50,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-15 20:09:50,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-15 20:09:50,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-15 20:09:50,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-11-15 20:09:50,261 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 18 [2019-11-15 20:09:50,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:09:50,261 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-11-15 20:09:50,261 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 20:09:50,261 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-11-15 20:09:50,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 20:09:50,262 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:09:50,262 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:09:50,472 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-15 20:09:50,473 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:09:50,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:50,473 INFO L82 PathProgramCache]: Analyzing trace with hash -208376157, now seen corresponding path program 1 times [2019-11-15 20:09:50,473 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:09:50,474 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517283466] [2019-11-15 20:09:50,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-11-15 20:09:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:09:50,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 20:09:50,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:09:50,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:09:50,599 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:09:50,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:09:50,635 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517283466] [2019-11-15 20:09:50,635 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:09:50,635 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-15 20:09:50,635 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944789422] [2019-11-15 20:09:50,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 20:09:50,636 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:09:50,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 20:09:50,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-15 20:09:50,637 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 8 states. [2019-11-15 20:09:50,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:09:50,708 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2019-11-15 20:09:50,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:09:50,708 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-11-15 20:09:50,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:09:50,709 INFO L225 Difference]: With dead ends: 23 [2019-11-15 20:09:50,709 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 20:09:50,710 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-15 20:09:50,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 20:09:50,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 20:09:50,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 20:09:50,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 20:09:50,711 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-11-15 20:09:50,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:09:50,711 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:09:50,711 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 20:09:50,711 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:09:50,711 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 20:09:50,920 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-15 20:09:50,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 20:09:51,126 INFO L439 ceAbstractionStarter]: At program point L31(lines 11 32) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start_fmin_float_~x .cse0) (= ULTIMATE.start_fmin_float_~y .cse0))) [2019-11-15 20:09:51,126 INFO L439 ceAbstractionStarter]: At program point L31-1(lines 11 32) the Hoare annotation is: (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (let ((.cse0 (= ULTIMATE.start_fmin_float_~y .cse1))) (or (and .cse0 (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_float_#res|))) (and (= ULTIMATE.start_fmin_float_~x .cse1) .cse0)))) [2019-11-15 20:09:51,126 INFO L439 ceAbstractionStarter]: At program point L44(line 44) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ULTIMATE.start_fmin_float_~y .cse0) (= |ULTIMATE.start_fmin_float_#res| .cse0))) [2019-11-15 20:09:51,126 INFO L443 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2019-11-15 20:09:51,127 INFO L443 ceAbstractionStarter]: For program point L40-2(line 40) no Hoare annotation was computed. [2019-11-15 20:09:51,127 INFO L439 ceAbstractionStarter]: At program point L40-3(lines 34 41) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start_fmin_float_~y .cse0) (= |ULTIMATE.start_fmin_float_#res| .cse0))) [2019-11-15 20:09:51,127 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 20:09:51,127 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 20:09:51,127 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 20:09:51,127 INFO L443 ceAbstractionStarter]: For program point L28(lines 28 31) no Hoare annotation was computed. [2019-11-15 20:09:51,127 INFO L443 ceAbstractionStarter]: For program point L28-1(lines 28 31) no Hoare annotation was computed. [2019-11-15 20:09:51,127 INFO L443 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2019-11-15 20:09:51,127 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 20:09:51,128 INFO L443 ceAbstractionStarter]: For program point L58(lines 58 61) no Hoare annotation was computed. [2019-11-15 20:09:51,128 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2019-11-15 20:09:51,128 INFO L443 ceAbstractionStarter]: For program point L25-1(lines 25 31) no Hoare annotation was computed. [2019-11-15 20:09:51,128 INFO L446 ceAbstractionStarter]: At program point L63(lines 46 64) the Hoare annotation is: true [2019-11-15 20:09:51,128 INFO L443 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2019-11-15 20:09:51,128 INFO L443 ceAbstractionStarter]: For program point L22(lines 22 31) no Hoare annotation was computed. [2019-11-15 20:09:51,128 INFO L443 ceAbstractionStarter]: For program point L22-1(lines 22 31) no Hoare annotation was computed. [2019-11-15 20:09:51,128 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2019-11-15 20:09:51,129 INFO L443 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2019-11-15 20:09:51,129 INFO L439 ceAbstractionStarter]: At program point L14-2(lines 14 18) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start_fmin_float_~x .cse0) (= ULTIMATE.start_fmin_float_~y .cse0))) [2019-11-15 20:09:51,129 INFO L443 ceAbstractionStarter]: For program point L14-3(lines 11 32) no Hoare annotation was computed. [2019-11-15 20:09:51,131 INFO L443 ceAbstractionStarter]: For program point L14-5(lines 14 18) no Hoare annotation was computed. [2019-11-15 20:09:51,131 INFO L439 ceAbstractionStarter]: At program point L14-6(lines 14 18) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start_fmin_float_~x .cse0) (= ULTIMATE.start_fmin_float_~y .cse0))) [2019-11-15 20:09:51,131 INFO L443 ceAbstractionStarter]: For program point L14-7(lines 11 32) no Hoare annotation was computed. [2019-11-15 20:09:51,131 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2019-11-15 20:09:51,138 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,139 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,143 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,143 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,147 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,148 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,148 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,149 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,149 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,150 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,150 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,151 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,151 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,152 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,152 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,153 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,154 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,154 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,154 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,155 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,156 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,157 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:09:51 BoogieIcfgContainer [2019-11-15 20:09:51,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:09:51,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:09:51,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:09:51,161 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:09:51,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:09:47" (3/4) ... [2019-11-15 20:09:51,166 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 20:09:51,188 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-15 20:09:51,189 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-15 20:09:51,189 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-15 20:09:51,218 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-15 20:09:51,218 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1bv32 == \result && y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-15 20:09:51,219 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && !(0bv32 == \result)) || (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-11-15 20:09:51,250 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8f8dab31-a2e6-490c-993d-1366f64af0e2/bin/uautomizer/witness.graphml [2019-11-15 20:09:51,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:09:51,252 INFO L168 Benchmark]: Toolchain (without parser) took 4089.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 945.6 MB in the beginning and 939.7 MB in the end (delta: 6.0 MB). Peak memory consumption was 165.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:09:51,252 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:09:51,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.95 ms. Allocated memory is still 1.0 GB. Free memory was 945.6 MB in the beginning and 934.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:09:51,253 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -213.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:09:51,254 INFO L168 Benchmark]: Boogie Preprocessor took 59.43 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. [2019-11-15 20:09:51,254 INFO L168 Benchmark]: RCFGBuilder took 362.30 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: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:09:51,255 INFO L168 Benchmark]: TraceAbstraction took 3181.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 946.1 MB in the end (delta: 177.3 MB). Peak memory consumption was 177.3 MB. Max. memory is 11.5 GB. [2019-11-15 20:09:51,255 INFO L168 Benchmark]: Witness Printer took 89.05 ms. Allocated memory is still 1.2 GB. Free memory was 946.1 MB in the beginning and 939.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:09:51,258 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 268.95 ms. Allocated memory is still 1.0 GB. Free memory was 945.6 MB in the beginning and 934.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 123.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -213.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.43 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 362.30 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: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3181.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 946.1 MB in the end (delta: 177.3 MB). Peak memory consumption was 177.3 MB. Max. memory is 11.5 GB. * Witness Printer took 89.05 ms. Allocated memory is still 1.2 GB. Free memory was 946.1 MB in the beginning and 939.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 59]: 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: 11]: Loop Invariant [2019-11-15 20:09:51,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,268 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,268 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant [2019-11-15 20:09:51,269 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,269 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,269 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 44]: Loop Invariant [2019-11-15 20:09:51,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (1bv32 == \result && y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 14]: Loop Invariant [2019-11-15 20:09:51,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 14]: Loop Invariant [2019-11-15 20:09:51,273 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,273 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,273 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,274 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 11]: Loop Invariant [2019-11-15 20:09:51,274 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,274 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,275 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,275 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,275 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:09:51,276 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && !(0bv32 == \result)) || (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 1 error locations. Result: SAFE, OverallTime: 3.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 182 SDtfs, 106 SDslu, 504 SDs, 0 SdLazy, 131 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 134 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 6 MinimizatonAttempts, 42 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 19 NumberOfFragments, 94 HoareAnnotationTreeSize, 7 FomulaSimplifications, 273 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 9152 SizeOfPredicates, 26 NumberOfNonLiveVariables, 273 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...