./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.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_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/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 d7891ae4dafa78057f773d618d0930e65225f61c ................................................................................................................................................................................................................................. 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_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/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 d7891ae4dafa78057f773d618d0930e65225f61c ........................................................................................................................................................................................................................................................................................................................... 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 02:36:50,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:36:50,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:36:50,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:36:50,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:36:50,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:36:50,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:36:50,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:36:50,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:36:50,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:36:50,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:36:50,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:36:50,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:36:50,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:36:50,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:36:50,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:36:50,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:36:50,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:36:50,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:36:50,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:36:50,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:36:50,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:36:50,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:36:50,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:36:50,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:36:50,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:36:50,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:36:50,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:36:50,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:36:50,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:36:50,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:36:50,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:36:50,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:36:50,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:36:50,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:36:50,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:36:50,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:36:50,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:36:50,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:36:50,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:36:50,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:36:50,727 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:36:50,751 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:36:50,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:36:50,762 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:36:50,762 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:36:50,762 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:36:50,762 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:36:50,763 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:36:50,763 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:36:50,763 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:36:50,763 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:36:50,763 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:36:50,764 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:36:50,764 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:36:50,764 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:36:50,764 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:36:50,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:36:50,765 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:36:50,765 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:36:50,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:36:50,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:36:50,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:36:50,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:36:50,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:36:50,767 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:36:50,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:36:50,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:36:50,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:36:50,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:36:50,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:36:50,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:36:50,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:36:50,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:36:50,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:36:50,770 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:36:50,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:36:50,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:36:50,770 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:36:50,770 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_e826764f-f0c6-4625-8817-9b45256982c1/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 -> d7891ae4dafa78057f773d618d0930e65225f61c [2019-11-26 02:36:50,934 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:36:50,947 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:36:50,950 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:36:50,951 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:36:50,951 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:36:50,952 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2019-11-26 02:36:51,006 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/data/63f3fa1e6/e57b078e759f4d47af5f29349354f57f/FLAG9f9f09541 [2019-11-26 02:36:51,427 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:36:51,428 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2019-11-26 02:36:51,433 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/data/63f3fa1e6/e57b078e759f4d47af5f29349354f57f/FLAG9f9f09541 [2019-11-26 02:36:51,446 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/data/63f3fa1e6/e57b078e759f4d47af5f29349354f57f [2019-11-26 02:36:51,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:36:51,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:36:51,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:36:51,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:36:51,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:36:51,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:36:51" (1/1) ... [2019-11-26 02:36:51,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23716032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:51, skipping insertion in model container [2019-11-26 02:36:51,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:36:51" (1/1) ... [2019-11-26 02:36:51,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:36:51,487 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:36:51,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:36:51,734 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:36:51,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:36:51,766 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:36:51,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:51 WrapperNode [2019-11-26 02:36:51,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:36:51,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:36:51,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:36:51,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:36:51,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:51" (1/1) ... [2019-11-26 02:36:51,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:51" (1/1) ... [2019-11-26 02:36:51,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:36:51,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:36:51,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:36:51,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:36:51,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:51" (1/1) ... [2019-11-26 02:36:51,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:51" (1/1) ... [2019-11-26 02:36:51,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:51" (1/1) ... [2019-11-26 02:36:51,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:51" (1/1) ... [2019-11-26 02:36:51,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:51" (1/1) ... [2019-11-26 02:36:51,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:51" (1/1) ... [2019-11-26 02:36:51,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:51" (1/1) ... [2019-11-26 02:36:51,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:36:51,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:36:51,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:36:51,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:36:51,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/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 02:36:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:36:51,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:36:52,040 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:36:52,040 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:36:52,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:52 BoogieIcfgContainer [2019-11-26 02:36:52,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:36:52,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:36:52,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:36:52,044 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:36:52,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:36:51" (1/3) ... [2019-11-26 02:36:52,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228b623e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:36:52, skipping insertion in model container [2019-11-26 02:36:52,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:51" (2/3) ... [2019-11-26 02:36:52,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228b623e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:36:52, skipping insertion in model container [2019-11-26 02:36:52,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:52" (3/3) ... [2019-11-26 02:36:52,047 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2019-11-26 02:36:52,056 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:36:52,061 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:36:52,073 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:36:52,094 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:36:52,094 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:36:52,095 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:36:52,095 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:36:52,095 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:36:52,095 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:36:52,096 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:36:52,096 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:36:52,109 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-11-26 02:36:52,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-26 02:36:52,115 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:36:52,117 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-26 02:36:52,117 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:36:52,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:36:52,123 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-26 02:36:52,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:36:52,133 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090045737] [2019-11-26 02:36:52,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:36:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:36:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:36:52,226 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:36:52,226 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:36:52,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:36:52 BoogieIcfgContainer [2019-11-26 02:36:52,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:36:52,242 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:36:52,242 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:36:52,243 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:36:52,243 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:52" (3/4) ... [2019-11-26 02:36:52,246 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-26 02:36:52,246 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:36:52,249 INFO L168 Benchmark]: Toolchain (without parser) took 797.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:36:52,249 INFO L168 Benchmark]: CDTParser took 0.22 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 02:36:52,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 948.8 MB in the beginning and 1.2 GB in the end (delta: -209.7 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:52,251 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:36:52,251 INFO L168 Benchmark]: Boogie Preprocessor took 16.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:36:52,252 INFO L168 Benchmark]: RCFGBuilder took 228.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:52,253 INFO L168 Benchmark]: TraceAbstraction took 199.82 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:52,253 INFO L168 Benchmark]: Witness Printer took 4.53 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 02:36:52,256 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 308.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 948.8 MB in the beginning and 1.2 GB in the end (delta: -209.7 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 228.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 199.82 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.53 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: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8, overapproximation of someUnaryFLOAToperation at line 5. Possible FailurePath: [L4] float f = 0x1.9e0c22p-101f; [L5] float g = -0x1.3c9014p-50f; [L6] float target = -0x1p-149f; [L8] float result = f * g; [L10] COND TRUE !(result == target) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 02:36:54,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:36:54,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:36:54,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:36:54,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:36:54,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:36:54,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:36:54,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:36:54,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:36:54,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:36:54,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:36:54,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:36:54,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:36:54,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:36:54,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:36:54,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:36:54,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:36:54,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:36:54,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:36:54,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:36:54,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:36:54,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:36:54,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:36:54,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:36:54,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:36:54,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:36:54,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:36:54,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:36:54,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:36:54,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:36:54,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:36:54,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:36:54,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:36:54,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:36:54,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:36:54,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:36:54,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:36:54,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:36:54,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:36:54,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:36:54,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:36:54,084 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-11-26 02:36:54,109 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:36:54,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:36:54,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:36:54,119 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:36:54,119 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:36:54,119 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:36:54,119 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:36:54,120 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:36:54,120 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:36:54,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:36:54,121 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:36:54,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:36:54,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:36:54,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:36:54,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:36:54,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:36:54,124 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:36:54,124 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:36:54,124 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:36:54,125 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:36:54,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:36:54,125 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:36:54,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:36:54,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:36:54,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:36:54,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:36:54,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:36:54,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:36:54,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:36:54,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:36:54,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:36:54,128 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:36:54,128 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:36:54,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:36:54,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:36:54,129 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_e826764f-f0c6-4625-8817-9b45256982c1/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 -> d7891ae4dafa78057f773d618d0930e65225f61c [2019-11-26 02:36:54,445 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:36:54,458 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:36:54,461 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:36:54,462 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:36:54,462 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:36:54,463 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2019-11-26 02:36:54,516 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/data/ae616b3ee/d4b411964bc844e59d8d1d44ed1bfb56/FLAG973dd294b [2019-11-26 02:36:54,875 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:36:54,876 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2019-11-26 02:36:54,881 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/data/ae616b3ee/d4b411964bc844e59d8d1d44ed1bfb56/FLAG973dd294b [2019-11-26 02:36:55,254 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/data/ae616b3ee/d4b411964bc844e59d8d1d44ed1bfb56 [2019-11-26 02:36:55,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:36:55,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:36:55,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:36:55,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:36:55,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:36:55,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:36:55" (1/1) ... [2019-11-26 02:36:55,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f53b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:55, skipping insertion in model container [2019-11-26 02:36:55,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:36:55" (1/1) ... [2019-11-26 02:36:55,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:36:55,287 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:36:55,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:36:55,506 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:36:55,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:36:55,547 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:36:55,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:55 WrapperNode [2019-11-26 02:36:55,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:36:55,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:36:55,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:36:55,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:36:55,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:55" (1/1) ... [2019-11-26 02:36:55,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:55" (1/1) ... [2019-11-26 02:36:55,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:36:55,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:36:55,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:36:55,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:36:55,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:55" (1/1) ... [2019-11-26 02:36:55,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:55" (1/1) ... [2019-11-26 02:36:55,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:55" (1/1) ... [2019-11-26 02:36:55,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:55" (1/1) ... [2019-11-26 02:36:55,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:55" (1/1) ... [2019-11-26 02:36:55,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:55" (1/1) ... [2019-11-26 02:36:55,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:55" (1/1) ... [2019-11-26 02:36:55,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:36:55,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:36:55,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:36:55,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:36:55,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/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 02:36:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:36:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:36:56,059 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:36:56,059 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:36:56,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:56 BoogieIcfgContainer [2019-11-26 02:36:56,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:36:56,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:36:56,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:36:56,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:36:56,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:36:55" (1/3) ... [2019-11-26 02:36:56,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae7142e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:36:56, skipping insertion in model container [2019-11-26 02:36:56,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:55" (2/3) ... [2019-11-26 02:36:56,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae7142e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:36:56, skipping insertion in model container [2019-11-26 02:36:56,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:56" (3/3) ... [2019-11-26 02:36:56,066 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2019-11-26 02:36:56,074 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:36:56,079 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:36:56,087 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:36:56,110 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:36:56,110 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:36:56,111 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:36:56,111 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:36:56,111 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:36:56,111 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:36:56,111 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:36:56,111 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:36:56,124 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-26 02:36:56,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:36:56,130 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:36:56,131 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-26 02:36:56,131 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:36:56,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:36:56,136 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-11-26 02:36:56,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:36:56,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023184582] [2019-11-26 02:36:56,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/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 02:36:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:56,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-26 02:36:56,276 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:36:56,350 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 02:36:56,350 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:36:56,403 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 02:36:56,404 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023184582] [2019-11-26 02:36:56,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:36:56,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-26 02:36:56,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199902000] [2019-11-26 02:36:56,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:36:56,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:36:56,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:36:56,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:36:56,420 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 6 states. [2019-11-26 02:36:56,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:36:56,566 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-11-26 02:36:56,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:36:56,568 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-11-26 02:36:56,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:36:56,574 INFO L225 Difference]: With dead ends: 13 [2019-11-26 02:36:56,575 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:36:56,577 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:36:56,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:36:56,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:36:56,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:36:56,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:36:56,595 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-26 02:36:56,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:36:56,596 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:36:56,596 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:36:56,596 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:36:56,596 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:36:56,796 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-26 02:36:56,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:36:56,863 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:36:56,863 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-26 02:36:56,863 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:36:56,863 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-26 02:36:56,863 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-11-26 02:36:56,864 INFO L440 ceAbstractionStarter]: At program point L12(lines 3 13) the Hoare annotation is: (and (= (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 713623846352979940529142984724747568191373312.0))) ULTIMATE.start_main_~target~0) (= ULTIMATE.start_main_~result~0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 13567505.0 21267647932558653966460912964485513216.0)) (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 5186565.0 4722366482869645213696.0))))) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-26 02:36:56,864 INFO L444 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2019-11-26 02:36:56,864 INFO L444 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2019-11-26 02:36:56,864 INFO L444 ceAbstractionStarter]: For program point L10-3(line 10) no Hoare annotation was computed. [2019-11-26 02:36:56,872 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,872 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,873 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,873 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,873 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,875 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:36:56,877 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,877 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,877 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,878 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,878 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,878 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:36:56,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:36:56 BoogieIcfgContainer [2019-11-26 02:36:56,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:36:56,881 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:36:56,881 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:36:56,881 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:36:56,881 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:56" (3/4) ... [2019-11-26 02:36:56,884 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:36:56,892 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-26 02:36:56,892 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:36:56,893 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:36:56,922 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e826764f-f0c6-4625-8817-9b45256982c1/bin/utaipan/witness.graphml [2019-11-26 02:36:56,922 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:36:56,924 INFO L168 Benchmark]: Toolchain (without parser) took 1665.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -117.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:56,924 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:36:56,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.13 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:56,925 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.79 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 945.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:56,926 INFO L168 Benchmark]: Boogie Preprocessor took 128.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -181.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:56,927 INFO L168 Benchmark]: RCFGBuilder took 351.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:56,927 INFO L168 Benchmark]: TraceAbstraction took 819.77 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: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:56,928 INFO L168 Benchmark]: Witness Printer took 41.41 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 02:36:56,931 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.13 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.79 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 945.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 128.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -181.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 351.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 819.77 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: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. * Witness Printer took 41.41 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - 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: 10]: 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: 3]: Loop Invariant [2019-11-26 02:36:56,939 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,939 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,939 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,939 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,940 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,940 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:36:56,940 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,940 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,941 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,941 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,941 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:36:56,941 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/713623846352979940529142984724747568191373312)) == target && result == ~fp.mul~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 13567505/21267647932558653966460912964485513216), ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5186565/4722366482869645213696)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 9 SDslu, 2 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 21 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 5 NumberOfNonLiveVariables, 15 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...