./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1250.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1250.c -s /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/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 7aa9ac80ed7bb9ce6b78459a496e265402ed9cc3 ......................................................................................................................................................................................................................................................................................................................................................... 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_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1250.c -s /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/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 7aa9ac80ed7bb9ce6b78459a496e265402ed9cc3 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 06:59:57,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 06:59:57,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 06:59:57,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 06:59:57,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 06:59:57,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 06:59:57,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 06:59:57,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 06:59:57,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 06:59:57,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 06:59:57,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 06:59:57,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 06:59:57,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 06:59:57,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 06:59:57,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 06:59:57,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 06:59:57,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 06:59:57,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 06:59:57,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 06:59:57,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 06:59:57,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 06:59:57,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 06:59:57,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 06:59:57,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 06:59:57,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 06:59:57,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 06:59:57,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 06:59:57,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 06:59:57,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 06:59:57,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 06:59:57,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 06:59:57,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 06:59:57,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 06:59:57,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 06:59:57,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 06:59:57,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 06:59:57,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 06:59:57,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 06:59:57,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 06:59:57,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 06:59:57,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 06:59:57,780 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 06:59:57,804 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 06:59:57,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 06:59:57,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 06:59:57,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 06:59:57,805 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 06:59:57,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 06:59:57,806 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 06:59:57,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 06:59:57,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 06:59:57,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 06:59:57,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 06:59:57,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 06:59:57,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 06:59:57,807 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 06:59:57,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 06:59:57,807 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 06:59:57,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 06:59:57,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 06:59:57,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 06:59:57,808 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 06:59:57,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 06:59:57,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 06:59:57,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 06:59:57,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 06:59:57,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 06:59:57,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 06:59:57,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 06:59:57,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 06:59:57,810 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_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/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 -> 7aa9ac80ed7bb9ce6b78459a496e265402ed9cc3 [2019-11-20 06:59:57,942 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 06:59:57,952 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 06:59:57,955 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 06:59:57,957 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 06:59:57,957 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 06:59:57,958 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1250.c [2019-11-20 06:59:58,008 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/data/6ab174333/a3f7a90fb5b04b9087b88c0fcca07b24/FLAG97102b67f [2019-11-20 06:59:58,414 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 06:59:58,416 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/sv-benchmarks/c/float-newlib/float_req_bl_1250.c [2019-11-20 06:59:58,423 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/data/6ab174333/a3f7a90fb5b04b9087b88c0fcca07b24/FLAG97102b67f [2019-11-20 06:59:58,438 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/data/6ab174333/a3f7a90fb5b04b9087b88c0fcca07b24 [2019-11-20 06:59:58,441 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 06:59:58,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 06:59:58,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 06:59:58,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 06:59:58,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 06:59:58,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:59:58" (1/1) ... [2019-11-20 06:59:58,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16e8c0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:58, skipping insertion in model container [2019-11-20 06:59:58,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:59:58" (1/1) ... [2019-11-20 06:59:58,458 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 06:59:58,475 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 06:59:58,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:59:58,767 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 06:59:58,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:59:58,827 INFO L192 MainTranslator]: Completed translation [2019-11-20 06:59:58,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:58 WrapperNode [2019-11-20 06:59:58,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 06:59:58,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 06:59:58,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 06:59:58,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 06:59:58,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:58" (1/1) ... [2019-11-20 06:59:58,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:58" (1/1) ... [2019-11-20 06:59:58,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 06:59:58,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 06:59:58,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 06:59:58,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 06:59:58,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:58" (1/1) ... [2019-11-20 06:59:58,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:58" (1/1) ... [2019-11-20 06:59:58,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:58" (1/1) ... [2019-11-20 06:59:58,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:58" (1/1) ... [2019-11-20 06:59:58,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:58" (1/1) ... [2019-11-20 06:59:58,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:58" (1/1) ... [2019-11-20 06:59:58,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:58" (1/1) ... [2019-11-20 06:59:58,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 06:59:58,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 06:59:58,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 06:59:58,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 06:59:58,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 06:59:58,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 06:59:58,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 06:59:58,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 06:59:58,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 06:59:58,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 06:59:58,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 06:59:59,316 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 06:59:59,316 INFO L285 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-20 06:59:59,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:59:59 BoogieIcfgContainer [2019-11-20 06:59:59,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 06:59:59,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 06:59:59,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 06:59:59,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 06:59:59,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:59:58" (1/3) ... [2019-11-20 06:59:59,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7145b1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:59:59, skipping insertion in model container [2019-11-20 06:59:59,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:58" (2/3) ... [2019-11-20 06:59:59,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7145b1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:59:59, skipping insertion in model container [2019-11-20 06:59:59,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:59:59" (3/3) ... [2019-11-20 06:59:59,324 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1250.c [2019-11-20 06:59:59,334 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 06:59:59,340 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 06:59:59,347 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 06:59:59,367 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 06:59:59,368 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 06:59:59,368 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 06:59:59,368 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 06:59:59,369 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 06:59:59,369 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 06:59:59,369 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 06:59:59,369 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 06:59:59,382 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-20 06:59:59,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 06:59:59,388 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:59:59,389 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:59:59,389 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:59:59,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:59:59,394 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2019-11-20 06:59:59,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:59:59,403 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309969469] [2019-11-20 06:59:59,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:59:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:59:59,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:59:59,498 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309969469] [2019-11-20 06:59:59,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:59:59,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 06:59:59,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121600600] [2019-11-20 06:59:59,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 06:59:59,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:59:59,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 06:59:59,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 06:59:59,515 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-11-20 06:59:59,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:59:59,533 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2019-11-20 06:59:59,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 06:59:59,534 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 06:59:59,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:59:59,543 INFO L225 Difference]: With dead ends: 54 [2019-11-20 06:59:59,543 INFO L226 Difference]: Without dead ends: 25 [2019-11-20 06:59:59,546 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 06:59:59,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-20 06:59:59,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-20 06:59:59,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 06:59:59,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-11-20 06:59:59,576 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2019-11-20 06:59:59,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:59:59,577 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-11-20 06:59:59,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 06:59:59,577 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2019-11-20 06:59:59,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 06:59:59,578 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:59:59,578 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:59:59,578 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:59:59,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:59:59,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2019-11-20 06:59:59,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:59:59,579 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64606401] [2019-11-20 06:59:59,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:59:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:59:59,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:59:59,645 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64606401] [2019-11-20 06:59:59,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:59:59,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 06:59:59,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31162406] [2019-11-20 06:59:59,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 06:59:59,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:59:59,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 06:59:59,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 06:59:59,648 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 4 states. [2019-11-20 06:59:59,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:59:59,732 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2019-11-20 06:59:59,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 06:59:59,733 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-20 06:59:59,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:59:59,734 INFO L225 Difference]: With dead ends: 41 [2019-11-20 06:59:59,734 INFO L226 Difference]: Without dead ends: 36 [2019-11-20 06:59:59,734 INFO L630 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 [2019-11-20 06:59:59,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-20 06:59:59,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2019-11-20 06:59:59,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 06:59:59,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-11-20 06:59:59,740 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2019-11-20 06:59:59,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:59:59,741 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-20 06:59:59,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 06:59:59,741 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-11-20 06:59:59,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 06:59:59,741 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:59:59,742 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:59:59,742 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:59:59,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:59:59,742 INFO L82 PathProgramCache]: Analyzing trace with hash -555778251, now seen corresponding path program 1 times [2019-11-20 06:59:59,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:59:59,742 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126280294] [2019-11-20 06:59:59,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:59:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:59:59,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:59:59,825 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126280294] [2019-11-20 06:59:59,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:59:59,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 06:59:59,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869758112] [2019-11-20 06:59:59,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 06:59:59,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:59:59,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 06:59:59,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 06:59:59,827 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 4 states. [2019-11-20 06:59:59,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:59:59,869 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2019-11-20 06:59:59,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 06:59:59,870 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-20 06:59:59,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:59:59,871 INFO L225 Difference]: With dead ends: 43 [2019-11-20 06:59:59,871 INFO L226 Difference]: Without dead ends: 38 [2019-11-20 06:59:59,871 INFO L630 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 [2019-11-20 06:59:59,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-20 06:59:59,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2019-11-20 06:59:59,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 06:59:59,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-11-20 06:59:59,876 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 14 [2019-11-20 06:59:59,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:59:59,877 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-20 06:59:59,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 06:59:59,877 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-11-20 06:59:59,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 06:59:59,877 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:59:59,878 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:59:59,878 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:59:59,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:59:59,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2019-11-20 06:59:59,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:59:59,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254909865] [2019-11-20 06:59:59,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:59:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:59:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:59:59,954 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:59:59,954 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 06:59:59,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:59:59 BoogieIcfgContainer [2019-11-20 06:59:59,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 06:59:59,976 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 06:59:59,977 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 06:59:59,977 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 06:59:59,977 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:59:59" (3/4) ... [2019-11-20 06:59:59,980 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 06:59:59,981 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 06:59:59,982 INFO L168 Benchmark]: Toolchain (without parser) took 1539.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -134.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-20 06:59:59,983 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:59:59,984 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -208.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 06:59:59,984 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:59:59,985 INFO L168 Benchmark]: Boogie Preprocessor took 43.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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. [2019-11-20 06:59:59,985 INFO L168 Benchmark]: RCFGBuilder took 393.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-20 06:59:59,986 INFO L168 Benchmark]: TraceAbstraction took 657.95 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: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. [2019-11-20 06:59:59,986 INFO L168 Benchmark]: Witness Printer took 4.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:59:59,989 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 383.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -208.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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 393.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 657.95 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: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.20 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: 65]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 54, overapproximation of someBinaryArithmeticFLOAToperation at line 60. Possible FailurePath: [L60] float x = 0.0f / 0.0f; [L61] float y = 0.0f / 0.0f; [L20] __uint32_t w; [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (w) = gf_u.word [L28] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L30-L31] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L33-L34] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L36] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L39] return 0; [L43] COND TRUE __fpclassify_float(x) == 0 [L44] return y; [L62] float res = fmax_float(x, y); [L54] return x != x; [L64] COND TRUE !isnan_float(res) [L65] __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: 0.1s, 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, 0.0s 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 0.1.24-678e011 [2019-11-20 07:00:01,872 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-11-20 07:00:01,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:00:01,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:00:01,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:00:01,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:00:01,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:00:01,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:00:01,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:00:01,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:00:01,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:00:01,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:00:01,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:00:01,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:00:01,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:00:01,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:00:01,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:00:01,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:00:01,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:00:01,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:00:01,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:00:01,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:00:01,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:00:01,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:00:01,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:00:01,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:00:01,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:00:01,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:00:01,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:00:01,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:00:01,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:00:01,948 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 07:00:01,978 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:00:01,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:00:01,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:00:01,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:00:01,981 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:00:01,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:00:01,981 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:00:01,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:00:01,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:00:01,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 07:00:01,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 07:00:01,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 07:00:01,983 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 07:00:01,984 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 07:00:01,984 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:00:01,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:00:01,984 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:00:01,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 07:00:01,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:00:01,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:00:01,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 07:00:01,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 07:00:01,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 07:00:01,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:00:01,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 07:00:01,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 07:00:01,987 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 07:00:01,987 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 07:00:01,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 07:00:01,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 07:00:01,988 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_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/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 -> 7aa9ac80ed7bb9ce6b78459a496e265402ed9cc3 [2019-11-20 07:00:02,243 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:00:02,253 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:00:02,256 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:00:02,257 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:00:02,257 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:00:02,258 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1250.c [2019-11-20 07:00:02,316 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/data/461eda792/c9f6144c054e4367a752a5057e7e4c6a/FLAGa018e0268 [2019-11-20 07:00:02,717 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:00:02,718 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/sv-benchmarks/c/float-newlib/float_req_bl_1250.c [2019-11-20 07:00:02,724 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/data/461eda792/c9f6144c054e4367a752a5057e7e4c6a/FLAGa018e0268 [2019-11-20 07:00:03,142 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/data/461eda792/c9f6144c054e4367a752a5057e7e4c6a [2019-11-20 07:00:03,157 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:00:03,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:00:03,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:00:03,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:00:03,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:00:03,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:00:03" (1/1) ... [2019-11-20 07:00:03,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6be76989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:03, skipping insertion in model container [2019-11-20 07:00:03,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:00:03" (1/1) ... [2019-11-20 07:00:03,173 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:00:03,189 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:00:03,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:00:03,350 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:00:03,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:00:03,446 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:00:03,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:03 WrapperNode [2019-11-20 07:00:03,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:00:03,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:00:03,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:00:03,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:00:03,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:03" (1/1) ... [2019-11-20 07:00:03,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:03" (1/1) ... [2019-11-20 07:00:03,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:00:03,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:00:03,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:00:03,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:00:03,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:03" (1/1) ... [2019-11-20 07:00:03,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:03" (1/1) ... [2019-11-20 07:00:03,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:03" (1/1) ... [2019-11-20 07:00:03,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:03" (1/1) ... [2019-11-20 07:00:03,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:03" (1/1) ... [2019-11-20 07:00:03,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:03" (1/1) ... [2019-11-20 07:00:03,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:03" (1/1) ... [2019-11-20 07:00:03,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:00:03,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:00:03,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:00:03,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:00:03,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 07:00:03,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 07:00:03,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:00:03,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:00:03,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-20 07:00:03,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 07:00:03,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 07:00:03,904 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:00:03,905 INFO L285 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-20 07:00:03,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:00:03 BoogieIcfgContainer [2019-11-20 07:00:03,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:00:03,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 07:00:03,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 07:00:03,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 07:00:03,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:00:03" (1/3) ... [2019-11-20 07:00:03,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18172c8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:00:03, skipping insertion in model container [2019-11-20 07:00:03,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:03" (2/3) ... [2019-11-20 07:00:03,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18172c8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:00:03, skipping insertion in model container [2019-11-20 07:00:03,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:00:03" (3/3) ... [2019-11-20 07:00:03,912 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1250.c [2019-11-20 07:00:03,920 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 07:00:03,925 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 07:00:03,933 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 07:00:03,951 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 07:00:03,951 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 07:00:03,951 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 07:00:03,951 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:00:03,951 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:00:03,951 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 07:00:03,951 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:00:03,951 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 07:00:03,962 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-20 07:00:03,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 07:00:03,967 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:00:03,968 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:00:03,968 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:00:03,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:00:03,973 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2019-11-20 07:00:03,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:00:03,983 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040462833] [2019-11-20 07:00:03,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-20 07:00:04,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:00:04,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 07:00:04,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:00:04,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:04,066 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:00:04,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:04,070 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040462833] [2019-11-20 07:00:04,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:00:04,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 07:00:04,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597531329] [2019-11-20 07:00:04,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 07:00:04,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:00:04,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 07:00:04,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 07:00:04,089 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-11-20 07:00:04,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:00:04,107 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2019-11-20 07:00:04,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 07:00:04,108 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 07:00:04,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:00:04,117 INFO L225 Difference]: With dead ends: 54 [2019-11-20 07:00:04,117 INFO L226 Difference]: Without dead ends: 25 [2019-11-20 07:00:04,120 INFO L630 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 [2019-11-20 07:00:04,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-20 07:00:04,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-20 07:00:04,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 07:00:04,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-11-20 07:00:04,151 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2019-11-20 07:00:04,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:00:04,152 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-11-20 07:00:04,152 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 07:00:04,152 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2019-11-20 07:00:04,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 07:00:04,153 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:00:04,153 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:00:04,358 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 07:00:04,358 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:00:04,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:00:04,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2019-11-20 07:00:04,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:00:04,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775617491] [2019-11-20 07:00:04,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-20 07:00:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:00:04,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 07:00:04,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:00:04,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:04,450 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:00:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:04,478 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775617491] [2019-11-20 07:00:04,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:00:04,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-20 07:00:04,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940488470] [2019-11-20 07:00:04,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 07:00:04,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:00:04,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 07:00:04,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 07:00:04,481 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 6 states. [2019-11-20 07:00:04,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:00:04,612 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2019-11-20 07:00:04,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 07:00:04,613 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-11-20 07:00:04,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:00:04,615 INFO L225 Difference]: With dead ends: 52 [2019-11-20 07:00:04,615 INFO L226 Difference]: Without dead ends: 47 [2019-11-20 07:00:04,616 INFO L630 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 [2019-11-20 07:00:04,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-20 07:00:04,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2019-11-20 07:00:04,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 07:00:04,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-11-20 07:00:04,627 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2019-11-20 07:00:04,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:00:04,627 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-20 07:00:04,628 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 07:00:04,628 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-11-20 07:00:04,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 07:00:04,629 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:00:04,630 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:00:04,842 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 07:00:04,843 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:00:04,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:00:04,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2019-11-20 07:00:04,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:00:04,846 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298917005] [2019-11-20 07:00:04,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-20 07:00:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:00:04,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 07:00:04,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:00:04,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:04,975 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:00:05,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:05,035 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1298917005] [2019-11-20 07:00:05,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:00:05,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-20 07:00:05,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144583469] [2019-11-20 07:00:05,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 07:00:05,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:00:05,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 07:00:05,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-20 07:00:05,037 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 8 states. [2019-11-20 07:00:05,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:00:05,153 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2019-11-20 07:00:05,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 07:00:05,154 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-11-20 07:00:05,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:00:05,154 INFO L225 Difference]: With dead ends: 36 [2019-11-20 07:00:05,155 INFO L226 Difference]: Without dead ends: 27 [2019-11-20 07:00:05,155 INFO L630 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 [2019-11-20 07:00:05,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-20 07:00:05,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2019-11-20 07:00:05,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 07:00:05,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2019-11-20 07:00:05,160 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 14 [2019-11-20 07:00:05,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:00:05,160 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2019-11-20 07:00:05,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 07:00:05,161 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2019-11-20 07:00:05,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 07:00:05,161 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:00:05,162 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:00:05,378 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 07:00:05,379 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:00:05,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:00:05,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1012428811, now seen corresponding path program 1 times [2019-11-20 07:00:05,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:00:05,380 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189159269] [2019-11-20 07:00:05,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-20 07:00:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:00:05,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 07:00:05,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:00:05,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:05,482 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:00:05,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:05,497 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189159269] [2019-11-20 07:00:05,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:00:05,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-20 07:00:05,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230028954] [2019-11-20 07:00:05,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 07:00:05,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:00:05,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 07:00:05,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 07:00:05,499 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand 6 states. [2019-11-20 07:00:05,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:00:05,584 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2019-11-20 07:00:05,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 07:00:05,586 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-20 07:00:05,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:00:05,587 INFO L225 Difference]: With dead ends: 52 [2019-11-20 07:00:05,587 INFO L226 Difference]: Without dead ends: 47 [2019-11-20 07:00:05,588 INFO L630 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 [2019-11-20 07:00:05,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-20 07:00:05,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2019-11-20 07:00:05,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 07:00:05,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2019-11-20 07:00:05,595 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 16 [2019-11-20 07:00:05,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:00:05,596 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-11-20 07:00:05,596 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 07:00:05,596 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2019-11-20 07:00:05,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 07:00:05,597 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:00:05,597 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:00:05,809 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-20 07:00:05,810 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:00:05,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:00:05,810 INFO L82 PathProgramCache]: Analyzing trace with hash -356841937, now seen corresponding path program 1 times [2019-11-20 07:00:05,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:00:05,811 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930412474] [2019-11-20 07:00:05,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/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 [2019-11-20 07:00:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:00:05,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 07:00:05,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:00:05,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:05,929 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:00:05,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:05,978 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930412474] [2019-11-20 07:00:05,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:00:05,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-11-20 07:00:05,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984602635] [2019-11-20 07:00:05,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 07:00:05,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:00:05,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 07:00:05,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-20 07:00:05,981 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand 9 states. [2019-11-20 07:00:06,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:00:06,122 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2019-11-20 07:00:06,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 07:00:06,123 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2019-11-20 07:00:06,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:00:06,123 INFO L225 Difference]: With dead ends: 32 [2019-11-20 07:00:06,123 INFO L226 Difference]: Without dead ends: 23 [2019-11-20 07:00:06,124 INFO L630 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 [2019-11-20 07:00:06,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-20 07:00:06,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-20 07:00:06,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 07:00:06,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-11-20 07:00:06,128 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 18 [2019-11-20 07:00:06,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:00:06,128 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-11-20 07:00:06,128 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 07:00:06,129 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-11-20 07:00:06,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 07:00:06,129 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:00:06,129 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:00:06,330 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-20 07:00:06,330 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:00:06,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:00:06,330 INFO L82 PathProgramCache]: Analyzing trace with hash -208376157, now seen corresponding path program 1 times [2019-11-20 07:00:06,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:00:06,331 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407415562] [2019-11-20 07:00:06,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/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 [2019-11-20 07:00:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:00:06,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 07:00:06,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:00:06,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:06,449 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:00:06,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:06,489 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407415562] [2019-11-20 07:00:06,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:00:06,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-20 07:00:06,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227344484] [2019-11-20 07:00:06,490 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 07:00:06,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:00:06,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 07:00:06,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-20 07:00:06,490 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 8 states. [2019-11-20 07:00:06,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:00:06,556 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2019-11-20 07:00:06,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 07:00:06,557 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-11-20 07:00:06,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:00:06,557 INFO L225 Difference]: With dead ends: 23 [2019-11-20 07:00:06,557 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 07:00:06,558 INFO L630 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 [2019-11-20 07:00:06,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 07:00:06,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 07:00:06,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 07:00:06,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 07:00:06,559 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-11-20 07:00:06,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:00:06,559 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:00:06,559 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 07:00:06,559 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 07:00:06,559 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 07:00:06,768 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-20 07:00:06,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 07:00:06,966 INFO L444 ceAbstractionStarter]: For program point L64(lines 64 67) no Hoare annotation was computed. [2019-11-20 07:00:06,966 INFO L447 ceAbstractionStarter]: At program point L69(lines 56 70) the Hoare annotation is: true [2019-11-20 07:00:06,966 INFO L444 ceAbstractionStarter]: For program point L36(lines 36 39) no Hoare annotation was computed. [2019-11-20 07:00:06,966 INFO L444 ceAbstractionStarter]: For program point L36-1(lines 36 39) no Hoare annotation was computed. [2019-11-20 07:00:06,966 INFO L444 ceAbstractionStarter]: For program point L65(line 65) no Hoare annotation was computed. [2019-11-20 07:00:06,967 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 07:00:06,967 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 07:00:06,967 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 07:00:06,967 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 65) no Hoare annotation was computed. [2019-11-20 07:00:06,967 INFO L444 ceAbstractionStarter]: For program point L33(lines 33 39) no Hoare annotation was computed. [2019-11-20 07:00:06,967 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 07:00:06,967 INFO L444 ceAbstractionStarter]: For program point L33-1(lines 33 39) no Hoare annotation was computed. [2019-11-20 07:00:06,968 INFO L440 ceAbstractionStarter]: At program point L54(line 54) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start_fmax_float_~y .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= |ULTIMATE.start_fmax_float_#res| .cse0))) [2019-11-20 07:00:06,968 INFO L444 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2019-11-20 07:00:06,968 INFO L444 ceAbstractionStarter]: For program point L50-2(line 50) no Hoare annotation was computed. [2019-11-20 07:00:06,968 INFO L440 ceAbstractionStarter]: At program point L50-3(lines 42 51) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start_fmax_float_~y .cse0) (= |ULTIMATE.start_fmax_float_#res| .cse0))) [2019-11-20 07:00:06,968 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 39) no Hoare annotation was computed. [2019-11-20 07:00:06,968 INFO L444 ceAbstractionStarter]: For program point L30-1(lines 30 39) no Hoare annotation was computed. [2019-11-20 07:00:06,969 INFO L444 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2019-11-20 07:00:06,969 INFO L440 ceAbstractionStarter]: At program point L22-2(lines 22 26) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start_fmax_float_~x .cse0) (= ULTIMATE.start_fmax_float_~y .cse0))) [2019-11-20 07:00:06,969 INFO L444 ceAbstractionStarter]: For program point L22-3(lines 19 40) no Hoare annotation was computed. [2019-11-20 07:00:06,969 INFO L444 ceAbstractionStarter]: For program point L22-5(lines 22 26) no Hoare annotation was computed. [2019-11-20 07:00:06,969 INFO L440 ceAbstractionStarter]: At program point L22-6(lines 22 26) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start_fmax_float_~x .cse0) (= ULTIMATE.start_fmax_float_~y .cse0))) [2019-11-20 07:00:06,969 INFO L444 ceAbstractionStarter]: For program point L22-7(lines 19 40) no Hoare annotation was computed. [2019-11-20 07:00:06,970 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 49) no Hoare annotation was computed. [2019-11-20 07:00:06,970 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 45) no Hoare annotation was computed. [2019-11-20 07:00:06,970 INFO L440 ceAbstractionStarter]: At program point L39(lines 19 40) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start_fmax_float_~x .cse0) (= ULTIMATE.start_fmax_float_~y .cse0))) [2019-11-20 07:00:06,970 INFO L440 ceAbstractionStarter]: At program point L39-1(lines 19 40) the Hoare annotation is: (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (let ((.cse0 (= ULTIMATE.start_fmax_float_~y .cse1))) (or (and .cse0 (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_float_#res|))) (and (= ULTIMATE.start_fmax_float_~x .cse1) .cse0)))) [2019-11-20 07:00:06,980 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,981 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,984 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,985 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,987 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,988 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,989 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,989 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,990 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,991 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,991 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,991 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,992 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,992 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,993 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,993 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,994 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,995 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,995 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,996 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,996 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,996 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,997 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,997 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,997 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,997 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:06,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:00:06 BoogieIcfgContainer [2019-11-20 07:00:07,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 07:00:07,000 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 07:00:07,000 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 07:00:07,000 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 07:00:07,001 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:00:03" (3/4) ... [2019-11-20 07:00:07,004 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 07:00:07,026 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-20 07:00:07,026 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-20 07:00:07,027 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 07:00:07,054 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()) [2019-11-20 07:00:07,054 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-20 07:00:07,055 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())) [2019-11-20 07:00:07,109 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_81ba297d-c4cd-4b56-8efa-96ff07f5d46b/bin/uautomizer/witness.graphml [2019-11-20 07:00:07,109 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 07:00:07,111 INFO L168 Benchmark]: Toolchain (without parser) took 3951.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 956.4 MB in the beginning and 940.6 MB in the end (delta: 15.8 MB). Peak memory consumption was 178.9 MB. Max. memory is 11.5 GB. [2019-11-20 07:00:07,111 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:00:07,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -203.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-20 07:00:07,112 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:00:07,113 INFO L168 Benchmark]: Boogie Preprocessor took 32.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-20 07:00:07,113 INFO L168 Benchmark]: RCFGBuilder took 391.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-11-20 07:00:07,114 INFO L168 Benchmark]: TraceAbstraction took 3093.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 940.6 MB in the end (delta: 189.0 MB). Peak memory consumption was 189.0 MB. Max. memory is 11.5 GB. [2019-11-20 07:00:07,114 INFO L168 Benchmark]: Witness Printer took 109.05 ms. Allocated memory is still 1.2 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:00:07,118 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 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 288.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -203.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 391.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3093.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 940.6 MB in the end (delta: 189.0 MB). Peak memory consumption was 189.0 MB. Max. memory is 11.5 GB. * Witness Printer took 109.05 ms. Allocated memory is still 1.2 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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: 65]: 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: 42]: Loop Invariant [2019-11-20 07:00:07,130 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,130 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,131 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,131 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: 56]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant [2019-11-20 07:00:07,132 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,132 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,140 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,140 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: 54]: Loop Invariant [2019-11-20 07:00:07,141 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,141 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,141 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,141 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 19]: Loop Invariant [2019-11-20 07:00:07,142 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,142 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,142 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,142 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,143 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,143 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())) - InvariantResult [Line: 19]: Loop Invariant [2019-11-20 07:00:07,143 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,143 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,144 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,144 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: 22]: Loop Invariant [2019-11-20 07:00:07,144 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:00:07,145 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()) - 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: 0.1s, 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, 0.5s 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, 266 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 9102 SizeOfPredicates, 26 NumberOfNonLiveVariables, 279 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...