./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0682a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0682a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fcf534df2acf49cd98974d7f01989073db823dea .............................................................................................................................................................................................................................................................................................................................................................................................. 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_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0682a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fcf534df2acf49cd98974d7f01989073db823dea .................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 21:19:30,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:19:30,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:19:30,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:19:30,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:19:30,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:19:30,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:19:30,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:19:30,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:19:30,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:19:30,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:19:30,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:19:30,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:19:30,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:19:30,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:19:30,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:19:30,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:19:30,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:19:30,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:19:30,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:19:30,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:19:30,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:19:30,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:19:30,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:19:30,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:19:30,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:19:30,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:19:30,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:19:30,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:19:30,766 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:19:30,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:19:30,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:19:30,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:19:30,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:19:30,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:19:30,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:19:30,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:19:30,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:19:30,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:19:30,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:19:30,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:19:30,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 21:19:30,784 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:19:30,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:19:30,785 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:19:30,786 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:19:30,786 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:19:30,786 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:19:30,786 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 21:19:30,786 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:19:30,786 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:19:30,787 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 21:19:30,787 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 21:19:30,787 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:19:30,787 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 21:19:30,787 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 21:19:30,788 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 21:19:30,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:19:30,788 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:19:30,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 21:19:30,789 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:19:30,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:19:30,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:19:30,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:19:30,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:19:30,790 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:19:30,790 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:19:30,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:19:30,790 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:19:30,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:19:30,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:19:30,791 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:19:30,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:19:30,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:19:30,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:19:30,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:19:30,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:19:30,792 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 21:19:30,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 21:19:30,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:19:30,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:19:30,792 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:19:30,792 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan 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 -> Taipan 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 -> fcf534df2acf49cd98974d7f01989073db823dea [2019-12-07 21:19:30,899 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:19:30,906 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:19:30,909 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:19:30,910 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:19:30,910 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:19:30,910 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0682a.c [2019-12-07 21:19:30,947 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/data/a305231fe/d69e896685ed4cd888ca5daf2742949c/FLAG30b29be07 [2019-12-07 21:19:31,406 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:19:31,407 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c [2019-12-07 21:19:31,412 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/data/a305231fe/d69e896685ed4cd888ca5daf2742949c/FLAG30b29be07 [2019-12-07 21:19:31,421 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/data/a305231fe/d69e896685ed4cd888ca5daf2742949c [2019-12-07 21:19:31,423 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:19:31,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:19:31,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:19:31,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:19:31,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:19:31,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:19:31" (1/1) ... [2019-12-07 21:19:31,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c950872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:31, skipping insertion in model container [2019-12-07 21:19:31,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:19:31" (1/1) ... [2019-12-07 21:19:31,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:19:31,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:19:31,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:19:31,626 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:19:31,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:19:31,678 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:19:31,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:31 WrapperNode [2019-12-07 21:19:31,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:19:31,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:19:31,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:19:31,679 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:19:31,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:31" (1/1) ... [2019-12-07 21:19:31,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:31" (1/1) ... [2019-12-07 21:19:31,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:19:31,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:19:31,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:19:31,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:19:31,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:31" (1/1) ... [2019-12-07 21:19:31,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:31" (1/1) ... [2019-12-07 21:19:31,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:31" (1/1) ... [2019-12-07 21:19:31,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:31" (1/1) ... [2019-12-07 21:19:31,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:31" (1/1) ... [2019-12-07 21:19:31,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:31" (1/1) ... [2019-12-07 21:19:31,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:31" (1/1) ... [2019-12-07 21:19:31,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:19:31,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:19:31,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:19:31,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:19:31,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:19:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 21:19:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 21:19:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 21:19:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 21:19:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:19:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:19:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 21:19:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 21:19:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 21:19:32,366 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:19:32,366 INFO L287 CfgBuilder]: Removed 52 assume(true) statements. [2019-12-07 21:19:32,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:19:32 BoogieIcfgContainer [2019-12-07 21:19:32,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:19:32,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:19:32,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:19:32,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:19:32,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:19:31" (1/3) ... [2019-12-07 21:19:32,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e1f5fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:19:32, skipping insertion in model container [2019-12-07 21:19:32,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:31" (2/3) ... [2019-12-07 21:19:32,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e1f5fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:19:32, skipping insertion in model container [2019-12-07 21:19:32,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:19:32" (3/3) ... [2019-12-07 21:19:32,372 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0682a.c [2019-12-07 21:19:32,379 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:19:32,384 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 21:19:32,392 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 21:19:32,409 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:19:32,409 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:19:32,409 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:19:32,409 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:19:32,409 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:19:32,409 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:19:32,409 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:19:32,409 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:19:32,422 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states. [2019-12-07 21:19:32,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 21:19:32,426 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:19:32,426 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:19:32,426 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:19:32,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:19:32,430 INFO L82 PathProgramCache]: Analyzing trace with hash 372295354, now seen corresponding path program 1 times [2019-12-07 21:19:32,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 21:19:32,436 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95848592] [2019-12-07 21:19:32,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 21:19:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:19:32,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:19:32,532 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95848592] [2019-12-07 21:19:32,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:19:32,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 21:19:32,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141715633] [2019-12-07 21:19:32,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 21:19:32,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 21:19:32,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 21:19:32,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 21:19:32,547 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 2 states. [2019-12-07 21:19:32,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:19:32,566 INFO L93 Difference]: Finished difference Result 181 states and 309 transitions. [2019-12-07 21:19:32,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 21:19:32,567 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-12-07 21:19:32,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:19:32,575 INFO L225 Difference]: With dead ends: 181 [2019-12-07 21:19:32,575 INFO L226 Difference]: Without dead ends: 88 [2019-12-07 21:19:32,578 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 21:19:32,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-12-07 21:19:32,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2019-12-07 21:19:32,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-12-07 21:19:32,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 118 transitions. [2019-12-07 21:19:32,606 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 118 transitions. Word has length 13 [2019-12-07 21:19:32,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:19:32,606 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 118 transitions. [2019-12-07 21:19:32,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 21:19:32,606 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 118 transitions. [2019-12-07 21:19:32,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 21:19:32,607 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:19:32,607 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:19:32,607 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:19:32,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:19:32,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1067385150, now seen corresponding path program 1 times [2019-12-07 21:19:32,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 21:19:32,607 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815727984] [2019-12-07 21:19:32,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 21:19:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:19:32,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:19:32,667 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815727984] [2019-12-07 21:19:32,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:19:32,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 21:19:32,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677978809] [2019-12-07 21:19:32,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 21:19:32,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 21:19:32,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 21:19:32,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 21:19:32,669 INFO L87 Difference]: Start difference. First operand 88 states and 118 transitions. Second operand 3 states. [2019-12-07 21:19:32,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:19:32,691 INFO L93 Difference]: Finished difference Result 168 states and 227 transitions. [2019-12-07 21:19:32,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 21:19:32,691 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-12-07 21:19:32,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:19:32,692 INFO L225 Difference]: With dead ends: 168 [2019-12-07 21:19:32,692 INFO L226 Difference]: Without dead ends: 88 [2019-12-07 21:19:32,693 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 21:19:32,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-12-07 21:19:32,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2019-12-07 21:19:32,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-12-07 21:19:32,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 117 transitions. [2019-12-07 21:19:32,700 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 117 transitions. Word has length 16 [2019-12-07 21:19:32,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:19:32,700 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 117 transitions. [2019-12-07 21:19:32,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 21:19:32,700 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 117 transitions. [2019-12-07 21:19:32,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 21:19:32,700 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:19:32,700 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:19:32,701 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:19:32,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:19:32,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1612065626, now seen corresponding path program 1 times [2019-12-07 21:19:32,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 21:19:32,701 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450730608] [2019-12-07 21:19:32,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 21:19:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:19:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:19:32,873 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 21:19:32,873 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 21:19:32,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:19:32 BoogieIcfgContainer [2019-12-07 21:19:32,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 21:19:32,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 21:19:32,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 21:19:32,907 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 21:19:32,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:19:32" (3/4) ... [2019-12-07 21:19:32,911 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 21:19:32,911 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 21:19:32,912 INFO L168 Benchmark]: Toolchain (without parser) took 1487.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 942.5 MB in the beginning and 928.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 117.5 MB. Max. memory is 11.5 GB. [2019-12-07 21:19:32,913 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:19:32,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -150.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 21:19:32,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 21:19:32,914 INFO L168 Benchmark]: Boogie Preprocessor took 43.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 21:19:32,914 INFO L168 Benchmark]: RCFGBuilder took 603.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 992.7 MB in the end (delta: 89.3 MB). Peak memory consumption was 89.3 MB. Max. memory is 11.5 GB. [2019-12-07 21:19:32,915 INFO L168 Benchmark]: TraceAbstraction took 538.70 ms. Allocated memory is still 1.1 GB. Free memory was 992.7 MB in the beginning and 928.3 MB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 11.5 GB. [2019-12-07 21:19:32,915 INFO L168 Benchmark]: Witness Printer took 3.69 ms. Allocated memory is still 1.1 GB. Free memory is still 928.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:19:32,917 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 253.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -150.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 603.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 992.7 MB in the end (delta: 89.3 MB). Peak memory consumption was 89.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 538.70 ms. Allocated memory is still 1.1 GB. Free memory was 992.7 MB in the beginning and 928.3 MB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.69 ms. Allocated memory is still 1.1 GB. Free memory is still 928.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 285]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryDOUBLEComparisonOperation at line 284. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L276] double x = -1.0 / 0.0; [L277] double y = __VERIFIER_nondet_double(); [L246] __int32_t hx, lx; VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L248] ieee_double_shape_type ew_u; [L249] ew_u.value = (x) [L250] EXPR ew_u.parts.msw [L250] (hx) = ew_u.parts.msw [L251] EXPR ew_u.parts.lsw [L251] (lx) = ew_u.parts.lsw [L253] hx &= 0x7fffffff [L254] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L255] hx = 0x7ff00000 - hx [L256] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L279] EXPR isinf_double(x) && isfinite_double(y) [L260] __int32_t hx; VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L262] ieee_double_shape_type gh_u; [L263] gh_u.value = (x) [L264] EXPR gh_u.parts.msw [L264] (hx) = gh_u.parts.msw [L266] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L279] EXPR isinf_double(x) && isfinite_double(y) VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L279] COND TRUE isinf_double(x) && isfinite_double(y) && y < 0.0 [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L281] double res = __ieee754_atan2(y, x); [L284] COND TRUE res != -pi VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L285] __VERIFIER_error() VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 91 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 240 SDtfs, 0 SDslu, 112 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 384 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 21:19:34,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:19:34,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:19:34,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:19:34,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:19:34,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:19:34,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:19:34,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:19:34,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:19:34,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:19:34,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:19:34,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:19:34,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:19:34,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:19:34,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:19:34,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:19:34,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:19:34,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:19:34,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:19:34,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:19:34,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:19:34,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:19:34,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:19:34,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:19:34,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:19:34,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:19:34,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:19:34,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:19:34,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:19:34,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:19:34,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:19:34,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:19:34,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:19:34,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:19:34,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:19:34,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:19:34,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:19:34,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:19:34,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:19:34,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:19:34,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:19:34,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 21:19:34,285 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:19:34,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:19:34,286 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:19:34,287 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:19:34,287 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:19:34,287 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:19:34,287 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:19:34,287 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:19:34,287 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:19:34,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:19:34,288 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:19:34,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:19:34,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:19:34,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:19:34,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:19:34,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:19:34,289 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:19:34,289 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 21:19:34,289 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 21:19:34,289 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:19:34,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:19:34,289 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:19:34,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:19:34,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:19:34,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 21:19:34,290 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:19:34,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:19:34,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:19:34,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:19:34,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:19:34,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:19:34,290 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 21:19:34,291 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 21:19:34,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:19:34,291 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:19:34,291 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:19:34,291 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_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan 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 -> Taipan 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 -> fcf534df2acf49cd98974d7f01989073db823dea [2019-12-07 21:19:34,458 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:19:34,468 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:19:34,471 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:19:34,472 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:19:34,473 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:19:34,473 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0682a.c [2019-12-07 21:19:34,516 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/data/6572a25a7/5a58984fd41d40689ef0fb37fa37a672/FLAG01a5d0b47 [2019-12-07 21:19:34,856 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:19:34,856 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c [2019-12-07 21:19:34,863 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/data/6572a25a7/5a58984fd41d40689ef0fb37fa37a672/FLAG01a5d0b47 [2019-12-07 21:19:34,875 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/data/6572a25a7/5a58984fd41d40689ef0fb37fa37a672 [2019-12-07 21:19:34,877 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:19:34,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:19:34,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:19:34,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:19:34,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:19:34,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:19:34" (1/1) ... [2019-12-07 21:19:34,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eae0e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:34, skipping insertion in model container [2019-12-07 21:19:34,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:19:34" (1/1) ... [2019-12-07 21:19:34,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:19:34,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:19:35,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:19:35,091 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:19:35,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:19:35,183 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:19:35,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:35 WrapperNode [2019-12-07 21:19:35,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:19:35,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:19:35,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:19:35,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:19:35,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:35" (1/1) ... [2019-12-07 21:19:35,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:35" (1/1) ... [2019-12-07 21:19:35,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:19:35,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:19:35,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:19:35,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:19:35,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:35" (1/1) ... [2019-12-07 21:19:35,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:35" (1/1) ... [2019-12-07 21:19:35,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:35" (1/1) ... [2019-12-07 21:19:35,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:35" (1/1) ... [2019-12-07 21:19:35,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:35" (1/1) ... [2019-12-07 21:19:35,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:35" (1/1) ... [2019-12-07 21:19:35,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:35" (1/1) ... [2019-12-07 21:19:35,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:19:35,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:19:35,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:19:35,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:19:35,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:19:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 21:19:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 21:19:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 21:19:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-12-07 21:19:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 21:19:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:19:35,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:19:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 21:19:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 21:20:12,304 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:20:12,304 INFO L287 CfgBuilder]: Removed 52 assume(true) statements. [2019-12-07 21:20:12,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:20:12 BoogieIcfgContainer [2019-12-07 21:20:12,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:20:12,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:20:12,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:20:12,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:20:12,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:19:34" (1/3) ... [2019-12-07 21:20:12,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18fdb60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:20:12, skipping insertion in model container [2019-12-07 21:20:12,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:19:35" (2/3) ... [2019-12-07 21:20:12,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18fdb60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:20:12, skipping insertion in model container [2019-12-07 21:20:12,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:20:12" (3/3) ... [2019-12-07 21:20:12,310 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0682a.c [2019-12-07 21:20:12,317 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:20:12,322 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 21:20:12,329 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 21:20:12,345 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:20:12,346 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:20:12,346 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:20:12,346 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:20:12,346 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:20:12,346 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:20:12,346 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:20:12,347 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:20:12,358 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2019-12-07 21:20:12,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 21:20:12,362 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:20:12,363 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:20:12,363 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:20:12,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:20:12,367 INFO L82 PathProgramCache]: Analyzing trace with hash -617567418, now seen corresponding path program 1 times [2019-12-07 21:20:12,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:20:12,375 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090383536] [2019-12-07 21:20:12,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 21:20:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:20:12,713 INFO L264 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 21:20:12,717 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:20:12,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:20:12,729 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:20:12,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:20:12,733 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090383536] [2019-12-07 21:20:12,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:20:12,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 21:20:12,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13602244] [2019-12-07 21:20:12,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 21:20:12,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:20:12,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 21:20:12,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 21:20:12,754 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 2 states. [2019-12-07 21:20:12,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:20:12,781 INFO L93 Difference]: Finished difference Result 246 states and 412 transitions. [2019-12-07 21:20:12,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 21:20:12,783 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-12-07 21:20:12,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:20:12,791 INFO L225 Difference]: With dead ends: 246 [2019-12-07 21:20:12,791 INFO L226 Difference]: Without dead ends: 120 [2019-12-07 21:20:12,793 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 21:20:12,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-12-07 21:20:12,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-12-07 21:20:12,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-12-07 21:20:12,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 169 transitions. [2019-12-07 21:20:12,823 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 169 transitions. Word has length 15 [2019-12-07 21:20:12,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:20:12,823 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 169 transitions. [2019-12-07 21:20:12,824 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 21:20:12,824 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 169 transitions. [2019-12-07 21:20:12,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 21:20:12,824 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:20:12,824 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:20:13,025 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 21:20:13,026 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:20:13,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:20:13,027 INFO L82 PathProgramCache]: Analyzing trace with hash -397782484, now seen corresponding path program 1 times [2019-12-07 21:20:13,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:20:13,029 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118183829] [2019-12-07 21:20:13,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 21:20:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:20:13,458 INFO L264 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:20:13,460 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:20:13,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:20:13,474 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:20:13,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:20:13,477 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118183829] [2019-12-07 21:20:13,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:20:13,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 21:20:13,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787203920] [2019-12-07 21:20:13,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 21:20:13,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:20:13,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 21:20:13,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 21:20:13,479 INFO L87 Difference]: Start difference. First operand 120 states and 169 transitions. Second operand 3 states. [2019-12-07 21:20:13,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:20:13,523 INFO L93 Difference]: Finished difference Result 229 states and 326 transitions. [2019-12-07 21:20:13,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 21:20:13,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-12-07 21:20:13,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:20:13,526 INFO L225 Difference]: With dead ends: 229 [2019-12-07 21:20:13,526 INFO L226 Difference]: Without dead ends: 120 [2019-12-07 21:20:13,527 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 21:20:13,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-12-07 21:20:13,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-12-07 21:20:13,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-12-07 21:20:13,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 168 transitions. [2019-12-07 21:20:13,537 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 168 transitions. Word has length 18 [2019-12-07 21:20:13,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:20:13,537 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 168 transitions. [2019-12-07 21:20:13,537 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 21:20:13,538 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 168 transitions. [2019-12-07 21:20:13,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 21:20:13,538 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:20:13,538 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:20:13,739 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 21:20:13,739 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:20:13,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:20:13,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1006577033, now seen corresponding path program 1 times [2019-12-07 21:20:13,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:20:13,741 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606825401] [2019-12-07 21:20:13,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 21:20:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:20:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:20:15,572 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 21:20:15,572 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 21:20:15,773 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 21:20:15,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:20:15 BoogieIcfgContainer [2019-12-07 21:20:15,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 21:20:15,818 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 21:20:15,819 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 21:20:15,819 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 21:20:15,819 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:20:12" (3/4) ... [2019-12-07 21:20:15,821 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 21:20:15,885 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c48f765d-de3f-4d0e-ac34-421d3cee8aab/bin/utaipan/witness.graphml [2019-12-07 21:20:15,885 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 21:20:15,887 INFO L168 Benchmark]: Toolchain (without parser) took 41008.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 953.7 MB in the beginning and 894.9 MB in the end (delta: 58.9 MB). Peak memory consumption was 180.0 MB. Max. memory is 11.5 GB. [2019-12-07 21:20:15,887 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:20:15,888 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -156.1 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-12-07 21:20:15,888 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.74 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 21:20:15,888 INFO L168 Benchmark]: Boogie Preprocessor took 52.18 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2019-12-07 21:20:15,889 INFO L168 Benchmark]: RCFGBuilder took 37021.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.5 MB). Peak memory consumption was 83.5 MB. Max. memory is 11.5 GB. [2019-12-07 21:20:15,889 INFO L168 Benchmark]: TraceAbstraction took 3512.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 901.7 MB in the end (delta: 104.1 MB). Peak memory consumption was 104.1 MB. Max. memory is 11.5 GB. [2019-12-07 21:20:15,889 INFO L168 Benchmark]: Witness Printer took 67.13 ms. Allocated memory is still 1.2 GB. Free memory was 901.7 MB in the beginning and 894.9 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 21:20:15,891 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 304.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -156.1 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.74 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.18 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 37021.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.5 MB). Peak memory consumption was 83.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3512.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 901.7 MB in the end (delta: 104.1 MB). Peak memory consumption was 104.1 MB. Max. memory is 11.5 GB. * Witness Printer took 67.13 ms. Allocated memory is still 1.2 GB. Free memory was 901.7 MB in the beginning and 894.9 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 285]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L276] double x = -1.0 / 0.0; [L277] double y = __VERIFIER_nondet_double(); [L246] __int32_t hx, lx; VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L248] ieee_double_shape_type ew_u; [L249] ew_u.value = (x) [L250] EXPR ew_u.parts.msw [L250] (hx) = ew_u.parts.msw [L251] EXPR ew_u.parts.lsw [L251] (lx) = ew_u.parts.lsw [L253] hx &= 0x7fffffff [L254] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L255] hx = 0x7ff00000 - hx [L256] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L279] EXPR isinf_double(x) && isfinite_double(y) [L260] __int32_t hx; VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L262] ieee_double_shape_type gh_u; [L263] gh_u.value = (x) [L264] EXPR gh_u.parts.msw [L264] (hx) = gh_u.parts.msw [L266] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L279] EXPR isinf_double(x) && isfinite_double(y) VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L279] COND TRUE isinf_double(x) && isfinite_double(y) && y < 0.0 [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L281] double res = __ieee754_atan2(y, x); [L284] COND TRUE res != -pi VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L285] __VERIFIER_error() VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 124 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 343 SDtfs, 0 SDslu, 163 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 1004 SizeOfPredicates, 0 NumberOfNonLiveVariables, 259 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...