./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/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 fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 ................................................................................................................................................................................................................................................................................................................ 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_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/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 fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:24:18,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:24:18,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:24:18,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:24:18,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:24:18,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:24:18,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:24:18,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:24:18,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:24:18,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:24:18,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:24:18,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:24:18,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:24:18,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:24:18,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:24:18,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:24:18,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:24:18,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:24:18,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:24:18,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:24:18,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:24:18,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:24:18,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:24:18,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:24:18,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:24:18,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:24:18,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:24:18,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:24:18,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:24:18,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:24:18,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:24:18,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:24:18,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:24:18,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:24:18,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:24:18,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:24:18,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:24:18,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:24:18,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:24:18,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:24:18,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:24:18,737 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:24:18,750 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:24:18,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:24:18,751 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:24:18,751 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:24:18,751 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:24:18,751 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:24:18,751 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:24:18,751 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:24:18,752 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:24:18,752 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:24:18,752 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:24:18,752 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:24:18,752 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:24:18,753 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:24:18,753 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:24:18,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:24:18,754 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:24:18,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:24:18,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:24:18,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:24:18,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:24:18,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:24:18,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:24:18,755 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:24:18,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:24:18,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:24:18,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:24:18,756 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:24:18,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:24:18,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:24:18,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:24:18,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:24:18,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:24:18,757 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:24:18,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:24:18,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:24:18,757 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:24:18,757 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_76e379b1-de2a-425e-bc99-17176eed0683/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 -> fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 [2019-11-26 02:24:18,922 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:24:18,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:24:18,942 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:24:18,944 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:24:18,944 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:24:18,944 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2019-11-26 02:24:19,002 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/data/4e8a015d9/e84531f4528641e8affeeefd6292560b/FLAG554feadd7 [2019-11-26 02:24:19,361 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:24:19,362 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2019-11-26 02:24:19,372 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/data/4e8a015d9/e84531f4528641e8affeeefd6292560b/FLAG554feadd7 [2019-11-26 02:24:19,732 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/data/4e8a015d9/e84531f4528641e8affeeefd6292560b [2019-11-26 02:24:19,738 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:24:19,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:24:19,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:24:19,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:24:19,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:24:19,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:24:19" (1/1) ... [2019-11-26 02:24:19,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b1c255c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:19, skipping insertion in model container [2019-11-26 02:24:19,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:24:19" (1/1) ... [2019-11-26 02:24:19,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:24:19,791 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:24:20,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:24:20,055 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:24:20,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:24:20,114 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:24:20,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:20 WrapperNode [2019-11-26 02:24:20,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:24:20,115 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:24:20,115 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:24:20,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:24:20,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:20" (1/1) ... [2019-11-26 02:24:20,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:20" (1/1) ... [2019-11-26 02:24:20,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:24:20,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:24:20,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:24:20,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:24:20,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:20" (1/1) ... [2019-11-26 02:24:20,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:20" (1/1) ... [2019-11-26 02:24:20,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:20" (1/1) ... [2019-11-26 02:24:20,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:20" (1/1) ... [2019-11-26 02:24:20,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:20" (1/1) ... [2019-11-26 02:24:20,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:20" (1/1) ... [2019-11-26 02:24:20,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:20" (1/1) ... [2019-11-26 02:24:20,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:24:20,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:24:20,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:24:20,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:24:20,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/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 [2019-11-26 02:24:20,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:24:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-26 02:24:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:24:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-26 02:24:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:24:20,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:24:20,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:24:20,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-26 02:24:20,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:24:20,756 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:24:20,757 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-26 02:24:20,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:24:20 BoogieIcfgContainer [2019-11-26 02:24:20,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:24:20,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:24:20,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:24:20,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:24:20,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:24:19" (1/3) ... [2019-11-26 02:24:20,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60048322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:24:20, skipping insertion in model container [2019-11-26 02:24:20,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:20" (2/3) ... [2019-11-26 02:24:20,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60048322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:24:20, skipping insertion in model container [2019-11-26 02:24:20,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:24:20" (3/3) ... [2019-11-26 02:24:20,763 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2019-11-26 02:24:20,771 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:24:20,777 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:24:20,787 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:24:20,808 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:24:20,808 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:24:20,809 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:24:20,809 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:24:20,809 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:24:20,809 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:24:20,809 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:24:20,809 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:24:20,822 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-26 02:24:20,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:24:20,827 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:24:20,828 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:24:20,828 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:24:20,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:24:20,833 INFO L82 PathProgramCache]: Analyzing trace with hash -42699680, now seen corresponding path program 1 times [2019-11-26 02:24:20,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:24:20,841 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927594732] [2019-11-26 02:24:20,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:24:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:24:20,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:24:20,957 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927594732] [2019-11-26 02:24:20,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:24:20,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:24:20,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439809607] [2019-11-26 02:24:20,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:24:20,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:24:20,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:24:20,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:24:20,976 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-26 02:24:20,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:24:20,991 INFO L93 Difference]: Finished difference Result 49 states and 75 transitions. [2019-11-26 02:24:20,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:24:20,992 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-26 02:24:20,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:24:21,001 INFO L225 Difference]: With dead ends: 49 [2019-11-26 02:24:21,001 INFO L226 Difference]: Without dead ends: 23 [2019-11-26 02:24:21,011 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:24:21,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-26 02:24:21,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-26 02:24:21,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-26 02:24:21,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2019-11-26 02:24:21,041 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 8 [2019-11-26 02:24:21,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:24:21,041 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2019-11-26 02:24:21,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:24:21,041 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2019-11-26 02:24:21,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:24:21,042 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:24:21,042 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:24:21,042 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:24:21,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:24:21,043 INFO L82 PathProgramCache]: Analyzing trace with hash -282315225, now seen corresponding path program 1 times [2019-11-26 02:24:21,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:24:21,043 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246630626] [2019-11-26 02:24:21,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:24:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:24:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:24:21,211 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:24:21,212 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:24:21,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:24:21 BoogieIcfgContainer [2019-11-26 02:24:21,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:24:21,268 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:24:21,268 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:24:21,269 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:24:21,269 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:24:20" (3/4) ... [2019-11-26 02:24:21,272 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-26 02:24:21,272 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:24:21,275 INFO L168 Benchmark]: Toolchain (without parser) took 1534.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -107.3 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:24:21,276 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:24:21,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:24:21,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:24:21,278 INFO L168 Benchmark]: Boogie Preprocessor took 35.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:24:21,279 INFO L168 Benchmark]: RCFGBuilder took 560.29 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: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:24:21,280 INFO L168 Benchmark]: TraceAbstraction took 509.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:24:21,280 INFO L168 Benchmark]: Witness Printer took 4.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:24:21,289 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 373.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 560.29 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: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 509.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 142]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 141, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 62, overapproximation of someUnaryFLOAToperation at line 137, overapproximation of someBinaryArithmeticFLOAToperation at line 65. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L137] float x = -0.0f; [L54] float w, s1, s2, z; [L55] __int32_t ix, hx, id; VAL [aT_atan={3:0}, atanhi_atan={6:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L58] ieee_float_shape_type gf_u; [L59] gf_u.value = (x) [L60] EXPR gf_u.word [L60] (hx) = gf_u.word [L62] ix = hx & 0x7fffffff VAL [aT_atan={3:0}, atanhi_atan={6:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L63] COND TRUE ix >= 0x50800000 [L64] COND TRUE ((ix) > 0x7f800000L) [L65] return x + x; VAL [aT_atan={3:0}, atanhi_atan={6:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L138] float res = atan_float(x); [L141] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [aT_atan={3:0}, atanhi_atan={6:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L141] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L142] __VERIFIER_error() VAL [aT_atan={3:0}, atanhi_atan={6:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-26 02:24:23,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:24:23,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:24:23,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:24:23,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:24:23,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:24:23,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:24:23,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:24:23,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:24:23,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:24:23,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:24:23,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:24:23,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:24:23,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:24:23,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:24:23,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:24:23,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:24:23,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:24:23,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:24:23,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:24:23,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:24:23,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:24:23,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:24:23,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:24:23,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:24:23,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:24:23,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:24:23,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:24:23,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:24:23,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:24:23,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:24:23,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:24:23,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:24:23,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:24:23,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:24:23,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:24:23,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:24:23,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:24:23,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:24:23,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:24:23,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:24:23,362 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-11-26 02:24:23,381 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:24:23,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:24:23,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:24:23,383 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:24:23,383 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:24:23,383 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:24:23,384 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:24:23,384 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:24:23,384 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:24:23,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:24:23,386 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:24:23,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:24:23,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:24:23,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:24:23,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:24:23,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:24:23,388 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:24:23,388 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:24:23,389 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:24:23,389 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:24:23,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:24:23,389 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:24:23,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:24:23,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:24:23,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:24:23,391 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:24:23,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:24:23,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:24:23,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:24:23,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:24:23,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:24:23,392 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:24:23,392 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:24:23,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:24:23,393 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:24:23,393 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_76e379b1-de2a-425e-bc99-17176eed0683/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 -> fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 [2019-11-26 02:24:23,707 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:24:23,726 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:24:23,729 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:24:23,730 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:24:23,730 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:24:23,731 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2019-11-26 02:24:23,785 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/data/864a438e5/77836ef2f7ed4492be5cd1b64e2fec4a/FLAGbeefb5091 [2019-11-26 02:24:24,193 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:24:24,194 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2019-11-26 02:24:24,201 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/data/864a438e5/77836ef2f7ed4492be5cd1b64e2fec4a/FLAGbeefb5091 [2019-11-26 02:24:24,630 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/data/864a438e5/77836ef2f7ed4492be5cd1b64e2fec4a [2019-11-26 02:24:24,633 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:24:24,634 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:24:24,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:24:24,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:24:24,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:24:24,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:24:24" (1/1) ... [2019-11-26 02:24:24,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@333645cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:24, skipping insertion in model container [2019-11-26 02:24:24,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:24:24" (1/1) ... [2019-11-26 02:24:24,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:24:24,671 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:24:24,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:24:24,943 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:24:25,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:24:25,088 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:24:25,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:25 WrapperNode [2019-11-26 02:24:25,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:24:25,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:24:25,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:24:25,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:24:25,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:25" (1/1) ... [2019-11-26 02:24:25,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:25" (1/1) ... [2019-11-26 02:24:25,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:24:25,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:24:25,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:24:25,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:24:25,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:25" (1/1) ... [2019-11-26 02:24:25,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:25" (1/1) ... [2019-11-26 02:24:25,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:25" (1/1) ... [2019-11-26 02:24:25,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:25" (1/1) ... [2019-11-26 02:24:25,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:25" (1/1) ... [2019-11-26 02:24:25,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:25" (1/1) ... [2019-11-26 02:24:25,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:25" (1/1) ... [2019-11-26 02:24:25,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:24:25,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:24:25,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:24:25,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:24:25,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/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 [2019-11-26 02:24:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-26 02:24:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:24:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-26 02:24:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-26 02:24:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:24:25,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:24:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-26 02:24:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-26 02:24:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:24:33,512 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:24:33,512 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-26 02:24:33,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:24:33 BoogieIcfgContainer [2019-11-26 02:24:33,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:24:33,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:24:33,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:24:33,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:24:33,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:24:24" (1/3) ... [2019-11-26 02:24:33,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dfcde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:24:33, skipping insertion in model container [2019-11-26 02:24:33,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:24:25" (2/3) ... [2019-11-26 02:24:33,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dfcde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:24:33, skipping insertion in model container [2019-11-26 02:24:33,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:24:33" (3/3) ... [2019-11-26 02:24:33,520 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2019-11-26 02:24:33,529 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:24:33,537 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:24:33,547 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:24:33,568 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:24:33,568 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:24:33,568 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:24:33,569 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:24:33,569 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:24:33,569 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:24:33,569 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:24:33,569 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:24:33,584 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-26 02:24:33,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:24:33,591 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:24:33,592 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:24:33,593 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:24:33,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:24:33,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2019-11-26 02:24:33,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:24:33,612 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070758757] [2019-11-26 02:24:33,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/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 [2019-11-26 02:24:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:24:34,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-26 02:24:34,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:24:34,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:24:34,557 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:24:34,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:24:34,561 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070758757] [2019-11-26 02:24:34,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:24:34,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-26 02:24:34,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326379053] [2019-11-26 02:24:34,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:24:34,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:24:34,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:24:34,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:24:34,581 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-26 02:24:34,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:24:34,599 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2019-11-26 02:24:34,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:24:34,601 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-26 02:24:34,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:24:34,610 INFO L225 Difference]: With dead ends: 72 [2019-11-26 02:24:34,610 INFO L226 Difference]: Without dead ends: 34 [2019-11-26 02:24:34,613 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:24:34,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-26 02:24:34,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-26 02:24:34,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-26 02:24:34,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2019-11-26 02:24:34,644 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2019-11-26 02:24:34,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:24:34,645 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2019-11-26 02:24:34,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:24:34,645 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2019-11-26 02:24:34,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:24:34,646 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:24:34,646 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:24:34,850 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-26 02:24:34,850 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:24:34,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:24:34,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2019-11-26 02:24:34,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:24:34,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822584318] [2019-11-26 02:24:34,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/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 [2019-11-26 02:24:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:24:35,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-26 02:24:35,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:24:35,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:24:35,853 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:24:35,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:24:35,924 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822584318] [2019-11-26 02:24:35,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:24:35,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-26 02:24:35,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369260704] [2019-11-26 02:24:35,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:24:35,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:24:35,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:24:35,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:24:35,928 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2019-11-26 02:24:39,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:24:39,934 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2019-11-26 02:24:39,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:24:39,935 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-26 02:24:39,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:24:39,936 INFO L225 Difference]: With dead ends: 57 [2019-11-26 02:24:39,936 INFO L226 Difference]: Without dead ends: 32 [2019-11-26 02:24:39,937 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-26 02:24:39,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-26 02:24:39,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2019-11-26 02:24:39,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-26 02:24:39,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-11-26 02:24:39,942 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 11 [2019-11-26 02:24:39,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:24:39,942 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-11-26 02:24:39,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:24:39,943 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-11-26 02:24:39,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:24:39,944 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:24:39,944 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:24:40,158 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-26 02:24:40,158 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:24:40,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:24:40,158 INFO L82 PathProgramCache]: Analyzing trace with hash -413875709, now seen corresponding path program 1 times [2019-11-26 02:24:40,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:24:40,159 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201803032] [2019-11-26 02:24:40,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/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 [2019-11-26 02:24:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:24:41,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-26 02:24:41,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:24:41,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:24:41,107 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:24:41,109 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:24:41,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:24:41,156 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201803032] [2019-11-26 02:24:41,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:24:41,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-26 02:24:41,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95257292] [2019-11-26 02:24:41,157 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:24:41,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:24:41,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:24:41,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:24:41,158 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2019-11-26 02:24:45,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:24:45,854 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-26 02:24:45,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:24:45,855 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-26 02:24:45,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:24:45,856 INFO L225 Difference]: With dead ends: 35 [2019-11-26 02:24:45,856 INFO L226 Difference]: Without dead ends: 32 [2019-11-26 02:24:45,857 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:24:45,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-26 02:24:45,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2019-11-26 02:24:45,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-26 02:24:45,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-11-26 02:24:45,862 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2019-11-26 02:24:45,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:24:45,863 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-11-26 02:24:45,863 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:24:45,863 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-11-26 02:24:45,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 02:24:45,863 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:24:45,863 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:24:46,064 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-26 02:24:46,064 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:24:46,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:24:46,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1848532469, now seen corresponding path program 1 times [2019-11-26 02:24:46,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:24:46,065 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213170615] [2019-11-26 02:24:46,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-26 02:24:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:24:48,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-26 02:24:48,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:24:48,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:24:48,167 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:24:48,475 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-11-26 02:24:48,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:24:48,569 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213170615] [2019-11-26 02:24:48,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:24:48,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-26 02:24:48,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122253415] [2019-11-26 02:24:48,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:24:48,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:24:48,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:24:48,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:24:48,572 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2019-11-26 02:24:48,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:24:48,743 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-11-26 02:24:48,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:24:48,749 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-26 02:24:48,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:24:48,750 INFO L225 Difference]: With dead ends: 32 [2019-11-26 02:24:48,750 INFO L226 Difference]: Without dead ends: 18 [2019-11-26 02:24:48,751 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:24:48,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-26 02:24:48,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-26 02:24:48,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-26 02:24:48,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-11-26 02:24:48,755 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-11-26 02:24:48,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:24:48,756 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-11-26 02:24:48,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:24:48,756 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-11-26 02:24:48,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-26 02:24:48,757 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:24:48,757 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:24:48,960 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-26 02:24:48,961 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:24:48,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:24:48,961 INFO L82 PathProgramCache]: Analyzing trace with hash 712330328, now seen corresponding path program 1 times [2019-11-26 02:24:48,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:24:48,962 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205284892] [2019-11-26 02:24:48,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-26 02:24:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:24:50,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-26 02:24:50,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:24:50,092 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:24:50,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:24:50,137 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:24:50,138 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:24:50,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:24:50,361 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205284892] [2019-11-26 02:24:50,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:24:50,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2019-11-26 02:24:50,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154917174] [2019-11-26 02:24:50,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-26 02:24:50,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:24:50,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-26 02:24:50,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-26 02:24:50,364 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2019-11-26 02:24:50,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:24:50,631 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-11-26 02:24:50,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:24:50,633 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2019-11-26 02:24:50,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:24:50,634 INFO L225 Difference]: With dead ends: 18 [2019-11-26 02:24:50,634 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:24:50,634 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-11-26 02:24:50,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:24:50,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:24:50,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:24:50,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:24:50,635 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-26 02:24:50,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:24:50,636 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:24:50,636 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-26 02:24:50,636 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:24:50,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:24:50,836 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-26 02:24:50,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:24:51,076 INFO L440 ceAbstractionStarter]: At program point L126(lines 117 127) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_atan_float_#res| .cse0) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ULTIMATE.start_atan_float_~x .cse0) |ULTIMATE.start_main_#t~short29| (= ULTIMATE.start_main_~res~0 .cse0) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_atan~0) (= (_ bv0 32) (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32))) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)) .cse0) (= ULTIMATE.start___signbit_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-26 02:24:51,077 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:24:51,077 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-26 02:24:51,077 INFO L444 ceAbstractionStarter]: For program point L120-1(lines 120 124) no Hoare annotation was computed. [2019-11-26 02:24:51,077 INFO L440 ceAbstractionStarter]: At program point L120-2(lines 120 124) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_atan_float_#res| .cse0) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ULTIMATE.start_atan_float_~x .cse0) |ULTIMATE.start_main_#t~short29| (= ULTIMATE.start_main_~res~0 .cse0) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_atan~0) (= ULTIMATE.start___signbit_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-26 02:24:51,077 INFO L444 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2019-11-26 02:24:51,077 INFO L444 ceAbstractionStarter]: For program point L120-3(lines 120 124) no Hoare annotation was computed. [2019-11-26 02:24:51,077 INFO L444 ceAbstractionStarter]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2019-11-26 02:24:51,078 INFO L444 ceAbstractionStarter]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2019-11-26 02:24:51,078 INFO L444 ceAbstractionStarter]: For program point L79(lines 79 95) no Hoare annotation was computed. [2019-11-26 02:24:51,078 INFO L444 ceAbstractionStarter]: For program point L71(lines 71 96) no Hoare annotation was computed. [2019-11-26 02:24:51,078 INFO L444 ceAbstractionStarter]: For program point L63(lines 63 70) no Hoare annotation was computed. [2019-11-26 02:24:51,078 INFO L444 ceAbstractionStarter]: For program point L88(lines 88 94) no Hoare annotation was computed. [2019-11-26 02:24:51,078 INFO L444 ceAbstractionStarter]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2019-11-26 02:24:51,078 INFO L447 ceAbstractionStarter]: At program point L146(lines 129 147) the Hoare annotation is: true [2019-11-26 02:24:51,079 INFO L444 ceAbstractionStarter]: For program point L113(line 113) no Hoare annotation was computed. [2019-11-26 02:24:51,079 INFO L444 ceAbstractionStarter]: For program point L80(lines 80 86) no Hoare annotation was computed. [2019-11-26 02:24:51,079 INFO L444 ceAbstractionStarter]: For program point L113-2(line 113) no Hoare annotation was computed. [2019-11-26 02:24:51,079 INFO L440 ceAbstractionStarter]: At program point L113-3(lines 53 115) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_atan_float_#res| .cse0) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ULTIMATE.start_atan_float_~x .cse0) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_atan~0) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-26 02:24:51,079 INFO L444 ceAbstractionStarter]: For program point L72(lines 72 75) no Hoare annotation was computed. [2019-11-26 02:24:51,079 INFO L444 ceAbstractionStarter]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2019-11-26 02:24:51,079 INFO L444 ceAbstractionStarter]: For program point L64(lines 64 65) no Hoare annotation was computed. [2019-11-26 02:24:51,080 INFO L444 ceAbstractionStarter]: For program point L73(lines 73 74) no Hoare annotation was computed. [2019-11-26 02:24:51,080 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-26 02:24:51,080 INFO L444 ceAbstractionStarter]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2019-11-26 02:24:51,080 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2019-11-26 02:24:51,080 INFO L440 ceAbstractionStarter]: At program point L57-2(lines 57 61) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ULTIMATE.start_atan_float_~x (fp.neg (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_atan~0) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-26 02:24:51,080 INFO L444 ceAbstractionStarter]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2019-11-26 02:24:51,081 INFO L444 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-11-26 02:24:51,081 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: false [2019-11-26 02:24:51,081 INFO L444 ceAbstractionStarter]: For program point L66(lines 66 69) no Hoare annotation was computed. [2019-11-26 02:24:51,081 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:24:51,081 INFO L444 ceAbstractionStarter]: For program point L141(line 141) no Hoare annotation was computed. [2019-11-26 02:24:51,081 INFO L444 ceAbstractionStarter]: For program point L141-2(lines 141 144) no Hoare annotation was computed. [2019-11-26 02:24:51,081 INFO L440 ceAbstractionStarter]: At program point L26(lines 14 27) the Hoare annotation is: false [2019-11-26 02:24:51,082 INFO L444 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2019-11-26 02:24:51,082 INFO L444 ceAbstractionStarter]: For program point L109(lines 109 114) no Hoare annotation was computed. [2019-11-26 02:24:51,092 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:24:51,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,098 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:24:51,099 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,099 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,099 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,100 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,100 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,101 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:24:51,101 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,103 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:24:51,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,104 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:24:51,104 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,104 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,104 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,105 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:24:51,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,106 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,106 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,106 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,107 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:24:51,107 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,108 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,108 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,108 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,109 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,109 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:24:51,110 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,110 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,110 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,111 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,111 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:24:51 BoogieIcfgContainer [2019-11-26 02:24:51,114 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:24:51,114 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:24:51,114 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:24:51,115 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:24:51,115 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:24:33" (3/4) ... [2019-11-26 02:24:51,117 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:24:51,128 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-26 02:24:51,129 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-26 02:24:51,129 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:24:51,154 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-26 02:24:51,155 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-26 02:24:51,155 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-26 02:24:51,205 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_76e379b1-de2a-425e-bc99-17176eed0683/bin/utaipan/witness.graphml [2019-11-26 02:24:51,205 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:24:51,206 INFO L168 Benchmark]: Toolchain (without parser) took 26572.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 956.4 MB in the beginning and 888.6 MB in the end (delta: 67.8 MB). Peak memory consumption was 225.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:24:51,207 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:24:51,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:24:51,208 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.88 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:24:51,208 INFO L168 Benchmark]: Boogie Preprocessor took 50.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:24:51,209 INFO L168 Benchmark]: RCFGBuilder took 8321.05 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:24:51,209 INFO L168 Benchmark]: TraceAbstraction took 17599.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 895.2 MB in the end (delta: 207.4 MB). Peak memory consumption was 207.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:24:51,209 INFO L168 Benchmark]: Witness Printer took 91.03 ms. Allocated memory is still 1.2 GB. Free memory was 895.2 MB in the beginning and 888.6 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:24:51,212 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 454.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.88 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 8321.05 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17599.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 895.2 MB in the end (delta: 207.4 MB). Peak memory consumption was 207.4 MB. Max. memory is 11.5 GB. * Witness Printer took 91.03 ms. Allocated memory is still 1.2 GB. Free memory was 895.2 MB in the beginning and 888.6 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 142]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant [2019-11-26 02:24:51,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:24:51,224 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,224 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,224 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,224 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,225 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,225 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:24:51,225 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,226 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,226 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,226 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,226 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 57]: Loop Invariant [2019-11-26 02:24:51,227 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:24:51,227 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,227 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,228 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,228 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,228 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,229 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:24:51,229 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,229 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,229 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,229 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,230 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant [2019-11-26 02:24:51,230 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:24:51,231 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,231 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,231 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,231 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,232 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,232 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:24:51,232 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,232 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,233 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,233 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,233 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 117]: Loop Invariant [2019-11-26 02:24:51,234 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:24:51,234 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,234 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,235 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,235 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,235 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,235 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:24:51,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:24:51,237 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: SAFE, OverallTime: 17.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 111 SDtfs, 161 SDslu, 202 SDs, 0 SdLazy, 85 SolverSat, 12 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 8.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 136 HoareAnnotationTreeSize, 7 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 5.0s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 12 QuantifiedInterpolants, 9709 SizeOfPredicates, 28 NumberOfNonLiveVariables, 453 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...