./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23f3104f6bf674f4cf2d86feffb86c85d21d7d18 ........................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23f3104f6bf674f4cf2d86feffb86c85d21d7d18 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 04:28:39,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 04:28:39,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 04:28:39,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 04:28:39,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 04:28:39,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 04:28:39,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 04:28:39,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 04:28:39,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 04:28:39,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 04:28:39,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 04:28:39,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 04:28:39,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 04:28:39,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 04:28:39,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 04:28:39,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 04:28:39,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 04:28:39,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 04:28:39,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 04:28:39,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 04:28:39,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 04:28:39,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 04:28:39,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 04:28:39,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 04:28:39,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 04:28:39,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 04:28:39,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 04:28:39,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 04:28:39,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 04:28:39,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 04:28:39,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 04:28:39,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 04:28:39,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 04:28:39,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 04:28:39,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 04:28:39,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 04:28:39,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 04:28:39,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 04:28:39,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 04:28:39,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 04:28:39,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 04:28:39,770 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 04:28:39,792 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 04:28:39,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 04:28:39,793 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 04:28:39,793 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 04:28:39,794 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 04:28:39,794 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 04:28:39,794 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 04:28:39,794 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 04:28:39,794 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 04:28:39,794 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 04:28:39,794 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 04:28:39,794 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 04:28:39,795 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 04:28:39,795 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 04:28:39,795 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 04:28:39,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 04:28:39,796 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 04:28:39,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 04:28:39,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 04:28:39,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 04:28:39,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 04:28:39,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 04:28:39,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 04:28:39,796 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 04:28:39,797 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 04:28:39,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 04:28:39,797 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 04:28:39,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 04:28:39,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 04:28:39,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 04:28:39,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:28:39,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 04:28:39,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 04:28:39,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 04:28:39,798 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 04:28:39,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 04:28:39,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 04:28:39,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 04:28:39,799 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 04:28:39,799 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f3104f6bf674f4cf2d86feffb86c85d21d7d18 [2020-12-09 04:28:39,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 04:28:40,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 04:28:40,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 04:28:40,002 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 04:28:40,003 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 04:28:40,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2020-12-09 04:28:40,048 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/data/bde32d308/451e4f341b3749aa9a1d26a58f07f9a7/FLAGa394e98c3 [2020-12-09 04:28:40,410 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 04:28:40,410 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2020-12-09 04:28:40,416 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/data/bde32d308/451e4f341b3749aa9a1d26a58f07f9a7/FLAGa394e98c3 [2020-12-09 04:28:40,830 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/data/bde32d308/451e4f341b3749aa9a1d26a58f07f9a7 [2020-12-09 04:28:40,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 04:28:40,833 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 04:28:40,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 04:28:40,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 04:28:40,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 04:28:40,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:28:40" (1/1) ... [2020-12-09 04:28:40,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@637ae92a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:40, skipping insertion in model container [2020-12-09 04:28:40,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:28:40" (1/1) ... [2020-12-09 04:28:40,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 04:28:40,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 04:28:40,958 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c[2154,2167] [2020-12-09 04:28:40,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:28:40,966 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 04:28:40,983 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c[2154,2167] [2020-12-09 04:28:40,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:28:40,994 INFO L208 MainTranslator]: Completed translation [2020-12-09 04:28:40,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:40 WrapperNode [2020-12-09 04:28:40,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 04:28:40,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 04:28:40,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 04:28:40,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 04:28:41,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:40" (1/1) ... [2020-12-09 04:28:41,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:40" (1/1) ... [2020-12-09 04:28:41,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 04:28:41,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 04:28:41,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 04:28:41,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 04:28:41,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:40" (1/1) ... [2020-12-09 04:28:41,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:40" (1/1) ... [2020-12-09 04:28:41,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:40" (1/1) ... [2020-12-09 04:28:41,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:40" (1/1) ... [2020-12-09 04:28:41,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:40" (1/1) ... [2020-12-09 04:28:41,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:40" (1/1) ... [2020-12-09 04:28:41,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:40" (1/1) ... [2020-12-09 04:28:41,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 04:28:41,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 04:28:41,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 04:28:41,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 04:28:41,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/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 [2020-12-09 04:28:41,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 04:28:41,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 04:28:41,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 04:28:41,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 04:28:41,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 04:28:41,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 04:28:41,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 04:28:41,542 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 04:28:41,542 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2020-12-09 04:28:41,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:28:41 BoogieIcfgContainer [2020-12-09 04:28:41,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 04:28:41,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 04:28:41,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 04:28:41,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 04:28:41,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:28:40" (1/3) ... [2020-12-09 04:28:41,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d245523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:28:41, skipping insertion in model container [2020-12-09 04:28:41,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:40" (2/3) ... [2020-12-09 04:28:41,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d245523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:28:41, skipping insertion in model container [2020-12-09 04:28:41,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:28:41" (3/3) ... [2020-12-09 04:28:41,550 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252a.c [2020-12-09 04:28:41,560 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 04:28:41,562 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 04:28:41,570 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 04:28:41,587 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 04:28:41,587 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 04:28:41,587 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 04:28:41,587 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 04:28:41,587 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 04:28:41,588 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 04:28:41,588 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 04:28:41,588 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 04:28:41,596 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-12-09 04:28:41,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 04:28:41,600 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:28:41,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:28:41,600 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:28:41,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:28:41,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1433219361, now seen corresponding path program 1 times [2020-12-09 04:28:41,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:28:41,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475941577] [2020-12-09 04:28:41,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:28:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:28:41,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:28:41,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475941577] [2020-12-09 04:28:41,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:28:41,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 04:28:41,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182554609] [2020-12-09 04:28:41,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 04:28:41,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:28:41,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 04:28:41,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 04:28:41,718 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-12-09 04:28:41,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:28:41,728 INFO L93 Difference]: Finished difference Result 35 states and 51 transitions. [2020-12-09 04:28:41,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 04:28:41,729 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-09 04:28:41,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:28:41,735 INFO L225 Difference]: With dead ends: 35 [2020-12-09 04:28:41,735 INFO L226 Difference]: Without dead ends: 16 [2020-12-09 04:28:41,737 INFO L677 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 [2020-12-09 04:28:41,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-09 04:28:41,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-09 04:28:41,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-09 04:28:41,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-12-09 04:28:41,758 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 8 [2020-12-09 04:28:41,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:28:41,758 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-12-09 04:28:41,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 04:28:41,758 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-09 04:28:41,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 04:28:41,759 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:28:41,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:28:41,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 04:28:41,759 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:28:41,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:28:41,760 INFO L82 PathProgramCache]: Analyzing trace with hash -2131701560, now seen corresponding path program 1 times [2020-12-09 04:28:41,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:28:41,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017157069] [2020-12-09 04:28:41,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:28:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 04:28:41,793 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 04:28:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 04:28:41,817 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 04:28:41,833 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 04:28:41,834 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 04:28:41,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 04:28:41,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:28:41 BoogieIcfgContainer [2020-12-09 04:28:41,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 04:28:41,852 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 04:28:41,852 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 04:28:41,852 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 04:28:41,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:28:41" (3/4) ... [2020-12-09 04:28:41,854 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 04:28:41,854 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 04:28:41,856 INFO L168 Benchmark]: Toolchain (without parser) took 1022.02 ms. Allocated memory is still 123.7 MB. Free memory was 94.9 MB in the beginning and 63.8 MB in the end (delta: 31.1 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2020-12-09 04:28:41,856 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 71.3 MB. Free memory was 37.7 MB in the beginning and 37.6 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:28:41,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.93 ms. Allocated memory is still 123.7 MB. Free memory was 94.7 MB in the beginning and 84.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 04:28:41,857 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.17 ms. Allocated memory is still 123.7 MB. Free memory was 84.3 MB in the beginning and 82.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:28:41,858 INFO L168 Benchmark]: Boogie Preprocessor took 20.21 ms. Allocated memory is still 123.7 MB. Free memory was 82.4 MB in the beginning and 81.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:28:41,858 INFO L168 Benchmark]: RCFGBuilder took 499.84 ms. Allocated memory is still 123.7 MB. Free memory was 80.8 MB in the beginning and 87.7 MB in the end (delta: -6.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2020-12-09 04:28:41,859 INFO L168 Benchmark]: TraceAbstraction took 306.42 ms. Allocated memory is still 123.7 MB. Free memory was 87.3 MB in the beginning and 64.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:28:41,859 INFO L168 Benchmark]: Witness Printer took 2.66 ms. Allocated memory is still 123.7 MB. Free memory was 64.2 MB in the beginning and 63.8 MB in the end (delta: 413.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:28:41,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 71.3 MB. Free memory was 37.7 MB in the beginning and 37.6 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 160.93 ms. Allocated memory is still 123.7 MB. Free memory was 94.7 MB in the beginning and 84.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.17 ms. Allocated memory is still 123.7 MB. Free memory was 84.3 MB in the beginning and 82.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.21 ms. Allocated memory is still 123.7 MB. Free memory was 82.4 MB in the beginning and 81.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 499.84 ms. Allocated memory is still 123.7 MB. Free memory was 80.8 MB in the beginning and 87.7 MB in the end (delta: -6.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 306.42 ms. Allocated memory is still 123.7 MB. Free memory was 87.3 MB in the beginning and 64.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 2.66 ms. Allocated memory is still 123.7 MB. Free memory was 64.2 MB in the beginning and 63.8 MB in the end (delta: 413.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 87]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 86, overapproximation of someUnaryDOUBLEoperation at line 81. Possible FailurePath: [L81] double x = -0.0; [L82] double y = 0.0; [L26] __uint32_t msw, lsw; [L29] ieee_double_shape_type ew_u; [L30] ew_u.value = (x) [L31] EXPR ew_u.parts.msw [L31] (msw) = ew_u.parts.msw [L32] EXPR ew_u.parts.lsw [L32] (lsw) = ew_u.parts.lsw [L35-L36] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L38-L39] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L41-L42] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L45-L46] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L49] return 0; [L54] COND TRUE __fpclassify_double(x) == 0 [L55] return y; [L83] double res = fmax_double(x, y); [L86] EXPR res == 0.0 && __signbit_double(res) == 0 [L86] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L87] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 19 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=18occurred 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, ACCELERATED_INTERPOLATION: 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 0.2.0-7b2dab5 [2020-12-09 04:28:43,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 04:28:43,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 04:28:43,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 04:28:43,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 04:28:43,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 04:28:43,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 04:28:43,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 04:28:43,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 04:28:43,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 04:28:43,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 04:28:43,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 04:28:43,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 04:28:43,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 04:28:43,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 04:28:43,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 04:28:43,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 04:28:43,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 04:28:43,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 04:28:43,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 04:28:43,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 04:28:43,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 04:28:43,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 04:28:43,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 04:28:43,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 04:28:43,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 04:28:43,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 04:28:43,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 04:28:43,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 04:28:43,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 04:28:43,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 04:28:43,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 04:28:43,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 04:28:43,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 04:28:43,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 04:28:43,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 04:28:43,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 04:28:43,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 04:28:43,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 04:28:43,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 04:28:43,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 04:28:43,586 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 04:28:43,604 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 04:28:43,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 04:28:43,604 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 04:28:43,605 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 04:28:43,605 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 04:28:43,605 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 04:28:43,605 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 04:28:43,605 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 04:28:43,605 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 04:28:43,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 04:28:43,606 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 04:28:43,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 04:28:43,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 04:28:43,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 04:28:43,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 04:28:43,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 04:28:43,607 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 04:28:43,607 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 04:28:43,607 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 04:28:43,607 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 04:28:43,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 04:28:43,607 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 04:28:43,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 04:28:43,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 04:28:43,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 04:28:43,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 04:28:43,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:28:43,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 04:28:43,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 04:28:43,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 04:28:43,609 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 04:28:43,609 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 04:28:43,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 04:28:43,609 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 04:28:43,609 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 04:28:43,609 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f3104f6bf674f4cf2d86feffb86c85d21d7d18 [2020-12-09 04:28:43,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 04:28:43,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 04:28:43,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 04:28:43,851 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 04:28:43,852 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 04:28:43,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2020-12-09 04:28:43,896 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/data/624f01ab8/88753187cc08416fa0c73cd946a5ad47/FLAG8b4135bd8 [2020-12-09 04:28:44,261 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 04:28:44,262 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2020-12-09 04:28:44,267 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/data/624f01ab8/88753187cc08416fa0c73cd946a5ad47/FLAG8b4135bd8 [2020-12-09 04:28:44,277 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/data/624f01ab8/88753187cc08416fa0c73cd946a5ad47 [2020-12-09 04:28:44,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 04:28:44,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 04:28:44,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 04:28:44,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 04:28:44,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 04:28:44,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:28:44" (1/1) ... [2020-12-09 04:28:44,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b2d7e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:44, skipping insertion in model container [2020-12-09 04:28:44,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:28:44" (1/1) ... [2020-12-09 04:28:44,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 04:28:44,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 04:28:44,406 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c[2154,2167] [2020-12-09 04:28:44,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:28:44,422 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 04:28:44,439 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c[2154,2167] [2020-12-09 04:28:44,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:28:44,454 INFO L208 MainTranslator]: Completed translation [2020-12-09 04:28:44,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:44 WrapperNode [2020-12-09 04:28:44,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 04:28:44,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 04:28:44,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 04:28:44,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 04:28:44,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:44" (1/1) ... [2020-12-09 04:28:44,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:44" (1/1) ... [2020-12-09 04:28:44,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 04:28:44,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 04:28:44,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 04:28:44,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 04:28:44,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:44" (1/1) ... [2020-12-09 04:28:44,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:44" (1/1) ... [2020-12-09 04:28:44,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:44" (1/1) ... [2020-12-09 04:28:44,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:44" (1/1) ... [2020-12-09 04:28:44,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:44" (1/1) ... [2020-12-09 04:28:44,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:44" (1/1) ... [2020-12-09 04:28:44,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:44" (1/1) ... [2020-12-09 04:28:44,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 04:28:44,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 04:28:44,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 04:28:44,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 04:28:44,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/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 [2020-12-09 04:28:44,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-09 04:28:44,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 04:28:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 04:28:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 04:28:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 04:28:44,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 04:28:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 04:28:44,865 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 04:28:44,865 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2020-12-09 04:28:44,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:28:44 BoogieIcfgContainer [2020-12-09 04:28:44,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 04:28:44,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 04:28:44,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 04:28:44,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 04:28:44,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:28:44" (1/3) ... [2020-12-09 04:28:44,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0a2aee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:28:44, skipping insertion in model container [2020-12-09 04:28:44,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:28:44" (2/3) ... [2020-12-09 04:28:44,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0a2aee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:28:44, skipping insertion in model container [2020-12-09 04:28:44,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:28:44" (3/3) ... [2020-12-09 04:28:44,874 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252a.c [2020-12-09 04:28:44,888 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 04:28:44,891 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 04:28:44,902 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 04:28:44,925 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 04:28:44,926 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 04:28:44,926 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 04:28:44,926 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 04:28:44,926 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 04:28:44,926 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 04:28:44,926 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 04:28:44,926 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 04:28:44,938 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-12-09 04:28:44,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 04:28:44,943 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:28:44,944 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:28:44,944 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:28:44,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:28:44,950 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times [2020-12-09 04:28:44,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:28:44,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381908350] [2020-12-09 04:28:44,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/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 [2020-12-09 04:28:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:28:45,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 04:28:45,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:28:45,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:28:45,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:28:45,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381908350] [2020-12-09 04:28:45,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:28:45,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 04:28:45,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651259961] [2020-12-09 04:28:45,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 04:28:45,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:28:45,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 04:28:45,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 04:28:45,088 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2020-12-09 04:28:45,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:28:45,105 INFO L93 Difference]: Finished difference Result 62 states and 98 transitions. [2020-12-09 04:28:45,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 04:28:45,106 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-09 04:28:45,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:28:45,115 INFO L225 Difference]: With dead ends: 62 [2020-12-09 04:28:45,115 INFO L226 Difference]: Without dead ends: 29 [2020-12-09 04:28:45,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 04:28:45,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-09 04:28:45,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-09 04:28:45,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-09 04:28:45,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2020-12-09 04:28:45,143 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10 [2020-12-09 04:28:45,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:28:45,144 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2020-12-09 04:28:45,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 04:28:45,144 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2020-12-09 04:28:45,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 04:28:45,144 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:28:45,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:28:45,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 04:28:45,346 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:28:45,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:28:45,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times [2020-12-09 04:28:45,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:28:45,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007589661] [2020-12-09 04:28:45,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/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 [2020-12-09 04:28:45,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:28:45,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 04:28:45,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:28:45,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:28:45,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:28:45,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007589661] [2020-12-09 04:28:45,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:28:45,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 04:28:45,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101733813] [2020-12-09 04:28:45,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 04:28:45,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:28:45,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 04:28:45,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 04:28:45,530 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 4 states. [2020-12-09 04:28:45,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:28:45,580 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2020-12-09 04:28:45,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 04:28:45,580 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-09 04:28:45,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:28:45,581 INFO L225 Difference]: With dead ends: 53 [2020-12-09 04:28:45,581 INFO L226 Difference]: Without dead ends: 44 [2020-12-09 04:28:45,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 04:28:45,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-09 04:28:45,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 31. [2020-12-09 04:28:45,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-09 04:28:45,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-12-09 04:28:45,586 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2020-12-09 04:28:45,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:28:45,586 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-12-09 04:28:45,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 04:28:45,587 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-12-09 04:28:45,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 04:28:45,587 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:28:45,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:28:45,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 04:28:45,789 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:28:45,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:28:45,791 INFO L82 PathProgramCache]: Analyzing trace with hash 502201410, now seen corresponding path program 1 times [2020-12-09 04:28:45,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:28:45,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907488598] [2020-12-09 04:28:45,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/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 [2020-12-09 04:28:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:28:45,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 04:28:45,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:28:45,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:28:45,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:28:45,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907488598] [2020-12-09 04:28:45,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:28:45,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 04:28:45,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286922791] [2020-12-09 04:28:45,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 04:28:45,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:28:45,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 04:28:45,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 04:28:45,989 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states. [2020-12-09 04:28:46,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:28:46,050 INFO L93 Difference]: Finished difference Result 61 states and 79 transitions. [2020-12-09 04:28:46,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 04:28:46,051 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-09 04:28:46,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:28:46,052 INFO L225 Difference]: With dead ends: 61 [2020-12-09 04:28:46,052 INFO L226 Difference]: Without dead ends: 39 [2020-12-09 04:28:46,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 04:28:46,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-09 04:28:46,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 30. [2020-12-09 04:28:46,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-09 04:28:46,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2020-12-09 04:28:46,058 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 12 [2020-12-09 04:28:46,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:28:46,058 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-12-09 04:28:46,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 04:28:46,058 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2020-12-09 04:28:46,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 04:28:46,059 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:28:46,059 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:28:46,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 04:28:46,260 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:28:46,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:28:46,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1951233721, now seen corresponding path program 1 times [2020-12-09 04:28:46,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:28:46,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778872698] [2020-12-09 04:28:46,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/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 [2020-12-09 04:28:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:28:46,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 04:28:46,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:28:46,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:28:46,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:28:46,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778872698] [2020-12-09 04:28:46,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:28:46,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 04:28:46,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600435876] [2020-12-09 04:28:46,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 04:28:46,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:28:46,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 04:28:46,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 04:28:46,393 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand 4 states. [2020-12-09 04:28:46,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:28:46,426 INFO L93 Difference]: Finished difference Result 52 states and 62 transitions. [2020-12-09 04:28:46,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 04:28:46,426 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-09 04:28:46,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:28:46,427 INFO L225 Difference]: With dead ends: 52 [2020-12-09 04:28:46,427 INFO L226 Difference]: Without dead ends: 43 [2020-12-09 04:28:46,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 04:28:46,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-12-09 04:28:46,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 28. [2020-12-09 04:28:46,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-09 04:28:46,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2020-12-09 04:28:46,431 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 13 [2020-12-09 04:28:46,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:28:46,431 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2020-12-09 04:28:46,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 04:28:46,431 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2020-12-09 04:28:46,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 04:28:46,432 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:28:46,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:28:46,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 04:28:46,633 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:28:46,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:28:46,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1012446717, now seen corresponding path program 1 times [2020-12-09 04:28:46,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:28:46,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763704004] [2020-12-09 04:28:46,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/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 [2020-12-09 04:28:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:28:46,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 04:28:46,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:28:46,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:28:46,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:28:46,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763704004] [2020-12-09 04:28:46,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:28:46,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 04:28:46,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822540513] [2020-12-09 04:28:46,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 04:28:46,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:28:46,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 04:28:46,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 04:28:46,760 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand 4 states. [2020-12-09 04:28:46,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:28:46,800 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2020-12-09 04:28:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 04:28:46,800 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-09 04:28:46,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:28:46,801 INFO L225 Difference]: With dead ends: 52 [2020-12-09 04:28:46,801 INFO L226 Difference]: Without dead ends: 43 [2020-12-09 04:28:46,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 04:28:46,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-12-09 04:28:46,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 30. [2020-12-09 04:28:46,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-09 04:28:46,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-12-09 04:28:46,805 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 16 [2020-12-09 04:28:46,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:28:46,805 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-12-09 04:28:46,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 04:28:46,805 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-12-09 04:28:46,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 04:28:46,806 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:28:46,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:28:47,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 04:28:47,006 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:28:47,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:28:47,007 INFO L82 PathProgramCache]: Analyzing trace with hash 874935118, now seen corresponding path program 1 times [2020-12-09 04:28:47,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:28:47,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844346315] [2020-12-09 04:28:47,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 04:28:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:28:47,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 04:28:47,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:28:47,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:28:47,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:28:47,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844346315] [2020-12-09 04:28:47,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:28:47,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 04:28:47,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689090933] [2020-12-09 04:28:47,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 04:28:47,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:28:47,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 04:28:47,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 04:28:47,110 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-12-09 04:28:47,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:28:47,178 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2020-12-09 04:28:47,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 04:28:47,179 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-12-09 04:28:47,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:28:47,179 INFO L225 Difference]: With dead ends: 43 [2020-12-09 04:28:47,179 INFO L226 Difference]: Without dead ends: 29 [2020-12-09 04:28:47,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 04:28:47,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-09 04:28:47,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-09 04:28:47,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-09 04:28:47,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2020-12-09 04:28:47,185 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 17 [2020-12-09 04:28:47,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:28:47,185 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2020-12-09 04:28:47,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 04:28:47,185 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-12-09 04:28:47,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 04:28:47,186 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:28:47,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:28:47,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 04:28:47,387 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:28:47,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:28:47,389 INFO L82 PathProgramCache]: Analyzing trace with hash -414082333, now seen corresponding path program 1 times [2020-12-09 04:28:47,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:28:47,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1546154322] [2020-12-09 04:28:47,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-12-09 04:28:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:28:47,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 04:28:47,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:28:47,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:28:47,542 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:28:47,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1546154322] [2020-12-09 04:28:47,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:28:47,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 04:28:47,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786648229] [2020-12-09 04:28:47,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:28:47,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:28:47,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:28:47,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:28:47,543 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2020-12-09 04:28:47,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:28:47,552 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2020-12-09 04:28:47,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:28:47,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-09 04:28:47,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:28:47,553 INFO L225 Difference]: With dead ends: 39 [2020-12-09 04:28:47,553 INFO L226 Difference]: Without dead ends: 29 [2020-12-09 04:28:47,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:28:47,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-09 04:28:47,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-09 04:28:47,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-09 04:28:47,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2020-12-09 04:28:47,556 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 18 [2020-12-09 04:28:47,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:28:47,557 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2020-12-09 04:28:47,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:28:47,557 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2020-12-09 04:28:47,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 04:28:47,557 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:28:47,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:28:47,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 04:28:47,758 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:28:47,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:28:47,760 INFO L82 PathProgramCache]: Analyzing trace with hash -356824031, now seen corresponding path program 1 times [2020-12-09 04:28:47,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:28:47,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495206694] [2020-12-09 04:28:47,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-12-09 04:28:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:28:47,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 04:28:47,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:28:47,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:28:47,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:28:47,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495206694] [2020-12-09 04:28:47,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:28:47,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 04:28:47,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641326038] [2020-12-09 04:28:47,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 04:28:47,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:28:47,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 04:28:47,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 04:28:47,905 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 6 states. [2020-12-09 04:28:47,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:28:47,980 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2020-12-09 04:28:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 04:28:47,981 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-09 04:28:47,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:28:47,981 INFO L225 Difference]: With dead ends: 41 [2020-12-09 04:28:47,981 INFO L226 Difference]: Without dead ends: 38 [2020-12-09 04:28:47,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-09 04:28:47,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-12-09 04:28:47,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 31. [2020-12-09 04:28:47,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-09 04:28:47,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-12-09 04:28:47,985 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 18 [2020-12-09 04:28:47,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:28:47,985 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-12-09 04:28:47,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 04:28:47,985 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-12-09 04:28:47,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 04:28:47,986 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:28:47,986 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:28:48,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-12-09 04:28:48,188 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:28:48,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:28:48,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1049593954, now seen corresponding path program 1 times [2020-12-09 04:28:48,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:28:48,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617443737] [2020-12-09 04:28:48,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-12-09 04:28:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:28:48,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 04:28:48,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:28:48,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:28:48,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:28:48,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617443737] [2020-12-09 04:28:48,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:28:48,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 04:28:48,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899954060] [2020-12-09 04:28:48,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 04:28:48,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:28:48,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 04:28:48,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 04:28:48,382 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 4 states. [2020-12-09 04:28:48,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:28:48,412 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-12-09 04:28:48,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 04:28:48,413 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-12-09 04:28:48,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:28:48,413 INFO L225 Difference]: With dead ends: 51 [2020-12-09 04:28:48,413 INFO L226 Difference]: Without dead ends: 42 [2020-12-09 04:28:48,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 04:28:48,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-09 04:28:48,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 27. [2020-12-09 04:28:48,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-09 04:28:48,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-12-09 04:28:48,420 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 18 [2020-12-09 04:28:48,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:28:48,420 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-12-09 04:28:48,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 04:28:48,420 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-12-09 04:28:48,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 04:28:48,421 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:28:48,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:28:48,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-12-09 04:28:48,622 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:28:48,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:28:48,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1524231306, now seen corresponding path program 1 times [2020-12-09 04:28:48,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:28:48,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190827137] [2020-12-09 04:28:48,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-12-09 04:28:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:28:48,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 04:28:48,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:28:48,818 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:28:48,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:28:48,848 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:28:48,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190827137] [2020-12-09 04:28:48,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:28:48,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-09 04:28:48,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884842961] [2020-12-09 04:28:48,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-09 04:28:48,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:28:48,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-09 04:28:48,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-09 04:28:48,850 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 10 states. [2020-12-09 04:28:49,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:28:49,005 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-12-09 04:28:49,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 04:28:49,005 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-12-09 04:28:49,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:28:49,006 INFO L225 Difference]: With dead ends: 27 [2020-12-09 04:28:49,006 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 04:28:49,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-12-09 04:28:49,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 04:28:49,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 04:28:49,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 04:28:49,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 04:28:49,007 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-12-09 04:28:49,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:28:49,007 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 04:28:49,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-09 04:28:49,007 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 04:28:49,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 04:28:49,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-12-09 04:28:49,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 04:28:49,492 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 04:28:49,492 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 04:28:49,492 INFO L262 CegarLoopResult]: For program point L28-1(lines 28 33) no Hoare annotation was computed. [2020-12-09 04:28:49,492 INFO L258 CegarLoopResult]: At program point L28-2(lines 28 33) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= ULTIMATE.start___fpclassify_double_~x .cse0) (= .cse0 ULTIMATE.start_fmax_double_~x))) [2020-12-09 04:28:49,492 INFO L262 CegarLoopResult]: For program point L28-3(lines 25 50) no Hoare annotation was computed. [2020-12-09 04:28:49,492 INFO L262 CegarLoopResult]: For program point L28-5(lines 28 33) no Hoare annotation was computed. [2020-12-09 04:28:49,492 INFO L258 CegarLoopResult]: At program point L28-6(lines 28 33) the Hoare annotation is: (and (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x)) [2020-12-09 04:28:49,492 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-09 04:28:49,492 INFO L262 CegarLoopResult]: For program point L28-7(lines 25 50) no Hoare annotation was computed. [2020-12-09 04:28:49,493 INFO L262 CegarLoopResult]: For program point L86-2(lines 86 89) no Hoare annotation was computed. [2020-12-09 04:28:49,493 INFO L262 CegarLoopResult]: For program point L45(lines 45 49) no Hoare annotation was computed. [2020-12-09 04:28:49,493 INFO L262 CegarLoopResult]: For program point L45-1(lines 45 49) no Hoare annotation was computed. [2020-12-09 04:28:49,493 INFO L262 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-12-09 04:28:49,493 INFO L262 CegarLoopResult]: For program point L54(lines 54 55) no Hoare annotation was computed. [2020-12-09 04:28:49,493 INFO L258 CegarLoopResult]: At program point L71(lines 62 72) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64))) (and (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|) ULTIMATE.start___signbit_double_~msw~1) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|))))) (= (_ +zero 11 53) |ULTIMATE.start_fmax_double_#res|) (= (_ +zero 11 53) ULTIMATE.start_main_~res~0) (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (= |ULTIMATE.start___signbit_double_#res| (_ bv0 32)) (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (and (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|)) (_ +zero 11 53)))) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x) |ULTIMATE.start_main_#t~short15| (= ULTIMATE.start___signbit_double_~x (_ +zero 11 53))) [2020-12-09 04:28:49,493 INFO L262 CegarLoopResult]: For program point L38(lines 38 49) no Hoare annotation was computed. [2020-12-09 04:28:49,493 INFO L262 CegarLoopResult]: For program point L38-1(lines 38 49) no Hoare annotation was computed. [2020-12-09 04:28:49,493 INFO L262 CegarLoopResult]: For program point L56(lines 56 57) no Hoare annotation was computed. [2020-12-09 04:28:49,493 INFO L262 CegarLoopResult]: For program point L65-1(lines 65 69) no Hoare annotation was computed. [2020-12-09 04:28:49,494 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 04:28:49,494 INFO L258 CegarLoopResult]: At program point L65-2(lines 65 69) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_fmax_double_#res|) (= (_ +zero 11 53) ULTIMATE.start_main_~res~0) (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (and (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|)) (_ +zero 11 53)))) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x) |ULTIMATE.start_main_#t~short15| (= ULTIMATE.start___signbit_double_~x (_ +zero 11 53))) [2020-12-09 04:28:49,494 INFO L262 CegarLoopResult]: For program point L65-3(lines 65 69) no Hoare annotation was computed. [2020-12-09 04:28:49,494 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 87) no Hoare annotation was computed. [2020-12-09 04:28:49,494 INFO L258 CegarLoopResult]: At program point L49(lines 25 50) the Hoare annotation is: (let ((.cse2 (fp.neg (_ +zero 11 53)))) (and (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (let ((.cse0 (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) (fp.neg (_ +zero 11 53))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0)))) (.cse1 (= ULTIMATE.start___fpclassify_double_~x .cse2))) (or (and .cse0 (= (_ bv2 32) |ULTIMATE.start___fpclassify_double_#res|) .cse1) (and (= (_ bv3 32) |ULTIMATE.start___fpclassify_double_#res|) .cse0 .cse1))) (= .cse2 ULTIMATE.start_fmax_double_~x))) [2020-12-09 04:28:49,494 INFO L258 CegarLoopResult]: At program point L49-1(lines 25 50) the Hoare annotation is: (and (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (let ((.cse0 (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x)) (.cse1 (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (and (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|)) (_ +zero 11 53))))) (.cse2 (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x))) (or (and (= (_ bv2 32) |ULTIMATE.start___fpclassify_double_#res|) .cse0 .cse1 .cse2) (and (= (_ bv3 32) |ULTIMATE.start___fpclassify_double_#res|) .cse0 .cse1 .cse2)))) [2020-12-09 04:28:49,494 INFO L262 CegarLoopResult]: For program point L41(lines 41 49) no Hoare annotation was computed. [2020-12-09 04:28:49,494 INFO L262 CegarLoopResult]: For program point L41-1(lines 41 49) no Hoare annotation was computed. [2020-12-09 04:28:49,494 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 04:28:49,495 INFO L265 CegarLoopResult]: At program point L91(lines 74 92) the Hoare annotation is: true [2020-12-09 04:28:49,495 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-09 04:28:49,495 INFO L262 CegarLoopResult]: For program point L59-2(line 59) no Hoare annotation was computed. [2020-12-09 04:28:49,495 INFO L258 CegarLoopResult]: At program point L59-3(lines 52 60) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_fmax_double_#res|) (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (and (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|)) (_ +zero 11 53)))) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x)) [2020-12-09 04:28:49,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,507 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,507 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,507 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,508 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,508 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,508 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,508 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,508 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,508 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,508 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,512 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,512 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,512 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,512 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,512 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,512 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,514 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 04:28:49,514 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 04:28:49,514 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 04:28:49,514 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 04:28:49,514 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,515 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,515 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,515 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,515 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 04:28:49,516 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 04:28:49,516 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 04:28:49,516 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 04:28:49,516 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,516 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,516 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,518 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,518 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,518 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,519 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,519 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,519 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:28:49 BoogieIcfgContainer [2020-12-09 04:28:49,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 04:28:49,521 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 04:28:49,521 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 04:28:49,521 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 04:28:49,522 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:28:44" (3/4) ... [2020-12-09 04:28:49,524 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 04:28:49,534 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-12-09 04:28:49,534 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 04:28:49,534 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 04:28:49,535 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 04:28:49,554 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~Pluszero~LONGDOUBLE() == y && ((((\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw) && 2bv32 == \result) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) || ((3bv32 == \result && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x [2020-12-09 04:28:49,554 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x [2020-12-09 04:28:49,555 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE() [2020-12-09 04:28:49,555 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ~Pluszero~LONGDOUBLE() == y && ((((2bv32 == \result && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) || (((3bv32 == \result && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x)) [2020-12-09 04:28:49,555 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\exists v_skolemized_q#valueAsBitvector_9 : bv64 :: v_skolemized_q#valueAsBitvector_9[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0])) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && \result == 0bv32) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE() [2020-12-09 04:28:49,582 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_80416700-2492-460c-848a-d9168390db9b/bin/utaipan/witness.graphml [2020-12-09 04:28:49,582 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 04:28:49,583 INFO L168 Benchmark]: Toolchain (without parser) took 5302.64 ms. Allocated memory was 56.6 MB in the beginning and 86.0 MB in the end (delta: 29.4 MB). Free memory was 35.9 MB in the beginning and 30.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:28:49,584 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 56.6 MB. Free memory was 38.3 MB in the beginning and 38.3 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:28:49,584 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.05 ms. Allocated memory is still 56.6 MB. Free memory was 35.8 MB in the beginning and 38.4 MB in the end (delta: -2.6 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2020-12-09 04:28:49,584 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.27 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 38.3 MB in the beginning and 54.6 MB in the end (delta: -16.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:28:49,585 INFO L168 Benchmark]: Boogie Preprocessor took 25.07 ms. Allocated memory is still 71.3 MB. Free memory was 54.6 MB in the beginning and 53.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:28:49,585 INFO L168 Benchmark]: RCFGBuilder took 342.99 ms. Allocated memory is still 71.3 MB. Free memory was 53.0 MB in the beginning and 49.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-12-09 04:28:49,585 INFO L168 Benchmark]: TraceAbstraction took 4652.54 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 49.4 MB in the beginning and 35.0 MB in the end (delta: 14.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. [2020-12-09 04:28:49,586 INFO L168 Benchmark]: Witness Printer took 60.95 ms. Allocated memory is still 86.0 MB. Free memory was 35.0 MB in the beginning and 30.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 04:28:49,587 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 56.6 MB. Free memory was 38.3 MB in the beginning and 38.3 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 174.05 ms. Allocated memory is still 56.6 MB. Free memory was 35.8 MB in the beginning and 38.4 MB in the end (delta: -2.6 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.27 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 38.3 MB in the beginning and 54.6 MB in the end (delta: -16.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.07 ms. Allocated memory is still 71.3 MB. Free memory was 54.6 MB in the beginning and 53.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 342.99 ms. Allocated memory is still 71.3 MB. Free memory was 53.0 MB in the beginning and 49.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4652.54 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 49.4 MB in the beginning and 35.0 MB in the end (delta: 14.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. * Witness Printer took 60.95 ms. Allocated memory is still 86.0 MB. Free memory was 35.0 MB in the beginning and 30.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 87]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 65]: Loop Invariant [2020-12-09 04:28:49,592 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,592 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,593 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,593 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,593 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,593 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,593 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,593 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] Derived loop invariant: ((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (~Pluszero~LONGDOUBLE() == y && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 25]: Loop Invariant [2020-12-09 04:28:49,594 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,594 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,594 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,594 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,594 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,594 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,594 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,594 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,595 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,595 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,595 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,595 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,595 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,595 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,595 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,595 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] Derived loop invariant: ~Pluszero~LONGDOUBLE() == y && ((((2bv32 == \result && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) || (((3bv32 == \result && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x)) - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (~Pluszero~LONGDOUBLE() == y && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 25]: Loop Invariant [2020-12-09 04:28:49,596 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,596 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,596 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,596 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,596 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,596 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,596 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,596 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 04:28:49,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: (~Pluszero~LONGDOUBLE() == y && ((((\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw) && 2bv32 == \result) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) || ((3bv32 == \result && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 62]: Loop Invariant [2020-12-09 04:28:49,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 04:28:49,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 04:28:49,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 04:28:49,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 04:28:49,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 04:28:49,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 04:28:49,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 04:28:49,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 04:28:49,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] Derived loop invariant: (((((((((\exists v_skolemized_q#valueAsBitvector_9 : bv64 :: v_skolemized_q#valueAsBitvector_9[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0])) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && \result == 0bv32) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 52]: Loop Invariant [2020-12-09 04:28:49,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,600 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,600 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,600 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 04:28:49,600 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] Derived loop invariant: (((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 344 SDtfs, 238 SDslu, 501 SDs, 0 SdLazy, 174 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 162 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 10 MinimizatonAttempts, 72 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 16 NumberOfFragments, 257 HoareAnnotationTreeSize, 8 FomulaSimplifications, 413 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 145 ConstructedInterpolants, 8 QuantifiedInterpolants, 6854 SizeOfPredicates, 40 NumberOfNonLiveVariables, 619 ConjunctsInSsa, 61 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...