./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.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_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/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 5ae8278c4ec20358798928b86253d2d04fbb03a1 ....................................................................................................................................................................................................................................................................................................................... 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_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/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 5ae8278c4ec20358798928b86253d2d04fbb03a1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 18:50:20,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:50:20,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:50:20,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:50:20,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:50:20,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:50:20,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:50:20,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:50:20,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:50:20,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:50:20,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:50:20,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:50:20,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:50:20,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:50:20,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:50:20,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:50:20,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:50:20,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:50:20,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:50:20,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:50:20,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:50:20,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:50:20,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:50:21,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:50:21,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:50:21,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:50:21,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:50:21,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:50:21,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:50:21,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:50:21,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:50:21,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:50:21,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:50:21,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:50:21,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:50:21,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:50:21,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:50:21,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:50:21,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:50:21,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:50:21,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:50:21,014 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 18:50:21,035 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:50:21,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:50:21,036 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:50:21,036 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:50:21,037 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:50:21,037 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:50:21,037 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 18:50:21,037 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:50:21,037 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:50:21,037 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 18:50:21,037 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 18:50:21,037 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:50:21,038 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 18:50:21,038 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 18:50:21,038 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 18:50:21,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:50:21,039 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:50:21,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 18:50:21,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:50:21,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:50:21,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:50:21,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:50:21,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:50:21,040 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:50:21,040 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:50:21,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:50:21,040 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:50:21,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:50:21,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:50:21,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:50:21,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:50:21,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:50:21,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:50:21,041 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:50:21,041 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 18:50:21,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 18:50:21,041 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:50:21,041 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:50:21,042 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:50:21,042 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_48c72382-7de7-45c9-8dc9-1cb092b93d76/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ae8278c4ec20358798928b86253d2d04fbb03a1 [2020-12-09 18:50:21,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:50:21,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:50:21,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:50:21,248 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:50:21,248 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:50:21,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2020-12-09 18:50:21,290 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/data/185c17702/fe2b160ddb1c424c9c3f68d6353eb61a/FLAGcc8e519c7 [2020-12-09 18:50:21,663 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:50:21,663 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2020-12-09 18:50:21,669 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/data/185c17702/fe2b160ddb1c424c9c3f68d6353eb61a/FLAGcc8e519c7 [2020-12-09 18:50:21,678 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/data/185c17702/fe2b160ddb1c424c9c3f68d6353eb61a [2020-12-09 18:50:21,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:50:21,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:50:21,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:50:21,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:50:21,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:50:21,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:50:21" (1/1) ... [2020-12-09 18:50:21,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5232be75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:21, skipping insertion in model container [2020-12-09 18:50:21,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:50:21" (1/1) ... [2020-12-09 18:50:21,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:50:21,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:50:21,853 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_48c72382-7de7-45c9-8dc9-1cb092b93d76/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2020-12-09 18:50:21,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:50:21,861 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 18:50:21,895 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_48c72382-7de7-45c9-8dc9-1cb092b93d76/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2020-12-09 18:50:21,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:50:21,908 INFO L208 MainTranslator]: Completed translation [2020-12-09 18:50:21,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:21 WrapperNode [2020-12-09 18:50:21,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:50:21,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 18:50:21,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 18:50:21,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 18:50:21,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:21" (1/1) ... [2020-12-09 18:50:21,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:21" (1/1) ... [2020-12-09 18:50:21,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 18:50:21,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 18:50:21,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 18:50:21,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 18:50:21,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:21" (1/1) ... [2020-12-09 18:50:21,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:21" (1/1) ... [2020-12-09 18:50:21,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:21" (1/1) ... [2020-12-09 18:50:21,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:21" (1/1) ... [2020-12-09 18:50:21,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:21" (1/1) ... [2020-12-09 18:50:21,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:21" (1/1) ... [2020-12-09 18:50:21,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:21" (1/1) ... [2020-12-09 18:50:21,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 18:50:21,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 18:50:21,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 18:50:21,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 18:50:21,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/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 18:50:22,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 18:50:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 18:50:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 18:50:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 18:50:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 18:50:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 18:50:22,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 18:50:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 18:50:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-09 18:50:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 18:50:22,577 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 18:50:22,577 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-09 18:50:22,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:50:22 BoogieIcfgContainer [2020-12-09 18:50:22,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 18:50:22,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 18:50:22,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 18:50:22,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 18:50:22,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:50:21" (1/3) ... [2020-12-09 18:50:22,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771dd41c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:50:22, skipping insertion in model container [2020-12-09 18:50:22,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:21" (2/3) ... [2020-12-09 18:50:22,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771dd41c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:50:22, skipping insertion in model container [2020-12-09 18:50:22,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:50:22" (3/3) ... [2020-12-09 18:50:22,586 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2020-12-09 18:50:22,598 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 18:50:22,601 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 18:50:22,609 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 18:50:22,627 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 18:50:22,627 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 18:50:22,627 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 18:50:22,627 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 18:50:22,627 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 18:50:22,627 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 18:50:22,627 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 18:50:22,627 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 18:50:22,636 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-12-09 18:50:22,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 18:50:22,640 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:50:22,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:50:22,640 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:50:22,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:50:22,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1459360728, now seen corresponding path program 1 times [2020-12-09 18:50:22,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 18:50:22,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538562074] [2020-12-09 18:50:22,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 18:50:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:50:22,739 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 18:50:22,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538562074] [2020-12-09 18:50:22,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:50:22,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 18:50:22,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267499768] [2020-12-09 18:50:22,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 18:50:22,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 18:50:22,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 18:50:22,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 18:50:22,754 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2020-12-09 18:50:22,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:50:22,767 INFO L93 Difference]: Finished difference Result 77 states and 131 transitions. [2020-12-09 18:50:22,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 18:50:22,768 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-09 18:50:22,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:50:22,774 INFO L225 Difference]: With dead ends: 77 [2020-12-09 18:50:22,774 INFO L226 Difference]: Without dead ends: 37 [2020-12-09 18:50:22,776 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 18:50:22,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-09 18:50:22,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-12-09 18:50:22,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-09 18:50:22,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2020-12-09 18:50:22,799 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 8 [2020-12-09 18:50:22,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:50:22,799 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2020-12-09 18:50:22,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 18:50:22,799 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2020-12-09 18:50:22,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 18:50:22,800 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:50:22,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:50:22,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 18:50:22,800 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:50:22,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:50:22,801 INFO L82 PathProgramCache]: Analyzing trace with hash -724915525, now seen corresponding path program 1 times [2020-12-09 18:50:22,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 18:50:22,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225597562] [2020-12-09 18:50:22,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 18:50:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 18:50:22,845 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 18:50:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 18:50:22,874 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 18:50:22,892 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 18:50:22,892 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 18:50:22,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 18:50:22,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:50:22 BoogieIcfgContainer [2020-12-09 18:50:22,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 18:50:22,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 18:50:22,914 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 18:50:22,914 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 18:50:22,914 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:50:22" (3/4) ... [2020-12-09 18:50:22,916 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 18:50:22,916 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 18:50:22,918 INFO L168 Benchmark]: Toolchain (without parser) took 1235.84 ms. Allocated memory is still 115.3 MB. Free memory was 78.2 MB in the beginning and 52.3 MB in the end (delta: 26.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. [2020-12-09 18:50:22,918 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 115.3 MB. Free memory is still 94.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:50:22,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.43 ms. Allocated memory is still 115.3 MB. Free memory was 78.1 MB in the beginning and 88.4 MB in the end (delta: -10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 18:50:22,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.26 ms. Allocated memory is still 115.3 MB. Free memory was 88.4 MB in the beginning and 85.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:50:22,920 INFO L168 Benchmark]: Boogie Preprocessor took 37.49 ms. Allocated memory is still 115.3 MB. Free memory was 85.8 MB in the beginning and 83.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:50:22,921 INFO L168 Benchmark]: RCFGBuilder took 584.25 ms. Allocated memory is still 115.3 MB. Free memory was 83.7 MB in the beginning and 78.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. [2020-12-09 18:50:22,921 INFO L168 Benchmark]: TraceAbstraction took 331.78 ms. Allocated memory is still 115.3 MB. Free memory was 78.8 MB in the beginning and 52.9 MB in the end (delta: 25.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-12-09 18:50:22,922 INFO L168 Benchmark]: Witness Printer took 3.01 ms. Allocated memory is still 115.3 MB. Free memory was 52.9 MB in the beginning and 52.3 MB in the end (delta: 626.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:50:22,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 115.3 MB. Free memory is still 94.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 226.43 ms. Allocated memory is still 115.3 MB. Free memory was 78.1 MB in the beginning and 88.4 MB in the end (delta: -10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.26 ms. Allocated memory is still 115.3 MB. Free memory was 88.4 MB in the beginning and 85.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.49 ms. Allocated memory is still 115.3 MB. Free memory was 85.8 MB in the beginning and 83.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 584.25 ms. Allocated memory is still 115.3 MB. Free memory was 83.7 MB in the beginning and 78.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 331.78 ms. Allocated memory is still 115.3 MB. Free memory was 78.8 MB in the beginning and 52.9 MB in the end (delta: 25.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 3.01 ms. Allocated memory is still 115.3 MB. Free memory was 52.9 MB in the beginning and 52.3 MB in the end (delta: 626.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 177]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L171] double x = __VERIFIER_nondet_double(); [L172] double y = -0.0; [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={9:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L173] double res = fmod_double(x, y); [L18] return x != x; [L176] COND TRUE !isnan_double(res) [L177] reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 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: 56 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=39occurred 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, 18 NumberOfCodeBlocks, 18 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 18:50:24,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:50:24,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:50:24,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:50:24,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:50:24,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:50:24,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:50:24,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:50:24,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:50:24,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:50:24,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:50:24,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:50:24,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:50:24,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:50:24,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:50:24,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:50:24,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:50:24,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:50:24,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:50:24,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:50:24,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:50:24,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:50:24,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:50:24,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:50:24,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:50:24,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:50:24,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:50:24,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:50:24,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:50:24,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:50:24,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:50:24,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:50:24,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:50:24,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:50:24,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:50:24,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:50:24,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:50:24,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:50:24,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:50:24,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:50:24,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:50:24,531 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 18:50:24,553 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:50:24,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:50:24,554 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:50:24,554 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:50:24,554 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:50:24,554 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:50:24,554 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:50:24,554 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:50:24,555 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:50:24,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:50:24,555 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:50:24,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:50:24,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:50:24,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:50:24,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:50:24,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:50:24,556 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:50:24,556 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 18:50:24,557 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 18:50:24,557 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:50:24,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:50:24,557 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:50:24,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:50:24,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:50:24,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 18:50:24,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:50:24,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:50:24,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:50:24,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:50:24,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:50:24,564 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 18:50:24,564 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 18:50:24,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:50:24,565 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:50:24,565 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:50:24,565 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_48c72382-7de7-45c9-8dc9-1cb092b93d76/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ae8278c4ec20358798928b86253d2d04fbb03a1 [2020-12-09 18:50:24,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:50:24,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:50:24,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:50:24,818 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:50:24,818 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:50:24,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2020-12-09 18:50:24,863 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/data/ad2ce950e/0989a551be4c43da99588ba193bcc331/FLAGc203beb19 [2020-12-09 18:50:25,337 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:50:25,338 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2020-12-09 18:50:25,343 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/data/ad2ce950e/0989a551be4c43da99588ba193bcc331/FLAGc203beb19 [2020-12-09 18:50:25,682 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/data/ad2ce950e/0989a551be4c43da99588ba193bcc331 [2020-12-09 18:50:25,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:50:25,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:50:25,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:50:25,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:50:25,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:50:25,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:50:25" (1/1) ... [2020-12-09 18:50:25,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ffb3c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:25, skipping insertion in model container [2020-12-09 18:50:25,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:50:25" (1/1) ... [2020-12-09 18:50:25,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:50:25,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:50:25,842 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_48c72382-7de7-45c9-8dc9-1cb092b93d76/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2020-12-09 18:50:25,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:50:25,863 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 18:50:25,906 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_48c72382-7de7-45c9-8dc9-1cb092b93d76/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2020-12-09 18:50:25,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:50:25,921 INFO L208 MainTranslator]: Completed translation [2020-12-09 18:50:25,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:25 WrapperNode [2020-12-09 18:50:25,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:50:25,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 18:50:25,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 18:50:25,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 18:50:25,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:25" (1/1) ... [2020-12-09 18:50:25,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:25" (1/1) ... [2020-12-09 18:50:25,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 18:50:25,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 18:50:25,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 18:50:25,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 18:50:25,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:25" (1/1) ... [2020-12-09 18:50:25,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:25" (1/1) ... [2020-12-09 18:50:25,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:25" (1/1) ... [2020-12-09 18:50:25,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:25" (1/1) ... [2020-12-09 18:50:25,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:25" (1/1) ... [2020-12-09 18:50:25,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:25" (1/1) ... [2020-12-09 18:50:25,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:25" (1/1) ... [2020-12-09 18:50:25,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 18:50:25,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 18:50:25,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 18:50:25,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 18:50:25,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/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 18:50:26,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-09 18:50:26,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-09 18:50:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 18:50:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 18:50:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-09 18:50:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 18:50:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 18:50:26,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 18:50:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 18:50:26,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 18:50:31,160 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 18:50:31,160 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-09 18:50:31,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:50:31 BoogieIcfgContainer [2020-12-09 18:50:31,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 18:50:31,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 18:50:31,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 18:50:31,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 18:50:31,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:50:25" (1/3) ... [2020-12-09 18:50:31,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430058dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:50:31, skipping insertion in model container [2020-12-09 18:50:31,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:50:25" (2/3) ... [2020-12-09 18:50:31,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430058dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:50:31, skipping insertion in model container [2020-12-09 18:50:31,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:50:31" (3/3) ... [2020-12-09 18:50:31,174 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2020-12-09 18:50:31,186 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 18:50:31,189 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 18:50:31,197 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 18:50:31,215 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 18:50:31,215 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 18:50:31,215 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 18:50:31,215 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 18:50:31,215 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 18:50:31,215 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 18:50:31,215 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 18:50:31,215 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 18:50:31,224 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-12-09 18:50:31,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 18:50:31,227 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:50:31,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:50:31,228 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:50:31,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:50:31,232 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-12-09 18:50:31,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:50:31,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485538626] [2020-12-09 18:50:31,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/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 18:50:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:50:32,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 18:50:32,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:50:32,056 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 18:50:32,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:50:32,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485538626] [2020-12-09 18:50:32,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:50:32,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 18:50:32,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924037129] [2020-12-09 18:50:32,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 18:50:32,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:50:32,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 18:50:32,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 18:50:32,070 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2020-12-09 18:50:32,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:50:32,084 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2020-12-09 18:50:32,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 18:50:32,085 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-09 18:50:32,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:50:32,091 INFO L225 Difference]: With dead ends: 108 [2020-12-09 18:50:32,091 INFO L226 Difference]: Without dead ends: 52 [2020-12-09 18:50:32,093 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 18:50:32,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-09 18:50:32,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-09 18:50:32,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-09 18:50:32,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-12-09 18:50:32,118 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-12-09 18:50:32,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:50:32,119 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-12-09 18:50:32,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 18:50:32,119 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-12-09 18:50:32,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 18:50:32,119 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:50:32,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:50:32,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 18:50:32,321 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:50:32,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:50:32,324 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-12-09 18:50:32,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:50:32,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938388027] [2020-12-09 18:50:32,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/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 18:50:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:50:33,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 18:50:33,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:50:35,548 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= |c_ULTIMATE.start_fmod_double_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) is different from false [2020-12-09 18:50:39,545 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 18:50:39,546 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:50:39,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938388027] [2020-12-09 18:50:39,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:50:39,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 18:50:39,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182355558] [2020-12-09 18:50:39,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 18:50:39,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:50:39,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 18:50:39,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=21, Unknown=1, NotChecked=8, Total=42 [2020-12-09 18:50:39,550 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 7 states. [2020-12-09 18:50:45,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:50:45,411 INFO L93 Difference]: Finished difference Result 63 states and 87 transitions. [2020-12-09 18:50:45,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 18:50:45,440 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-12-09 18:50:45,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:50:45,441 INFO L225 Difference]: With dead ends: 63 [2020-12-09 18:50:45,441 INFO L226 Difference]: Without dead ends: 58 [2020-12-09 18:50:45,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=16, Invalid=29, Unknown=1, NotChecked=10, Total=56 [2020-12-09 18:50:45,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-12-09 18:50:45,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2020-12-09 18:50:45,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-09 18:50:45,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2020-12-09 18:50:45,448 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2020-12-09 18:50:45,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:50:45,449 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-12-09 18:50:45,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 18:50:45,449 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2020-12-09 18:50:45,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 18:50:45,449 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:50:45,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:50:45,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 18:50:45,651 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:50:45,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:50:45,653 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2020-12-09 18:50:45,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:50:45,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352180743] [2020-12-09 18:50:45,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/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 18:50:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:50:45,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 18:50:45,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:50:45,847 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-12-09 18:50:45,869 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 18:50:45,887 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:50:45,888 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 18:50:45,961 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:50:45,964 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 18:50:45,964 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2020-12-09 18:50:46,184 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 18:50:46,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:50:46,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352180743] [2020-12-09 18:50:46,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:50:46,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 18:50:46,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962196225] [2020-12-09 18:50:46,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 18:50:46,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:50:46,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 18:50:46,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 18:50:46,187 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 5 states. [2020-12-09 18:50:46,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:50:46,482 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2020-12-09 18:50:46,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 18:50:46,482 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-09 18:50:46,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:50:46,483 INFO L225 Difference]: With dead ends: 52 [2020-12-09 18:50:46,483 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 18:50:46,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 18:50:46,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 18:50:46,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 18:50:46,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 18:50:46,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 18:50:46,484 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-09 18:50:46,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:50:46,485 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 18:50:46,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 18:50:46,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 18:50:46,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 18:50:46,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 18:50:46,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 18:50:49,859 WARN L197 SmtUtils]: Spent 3.02 s on a formula simplification that was a NOOP. DAG size: 9 [2020-12-09 18:50:49,898 INFO L262 CegarLoopResult]: For program point L35-2(lines 35 40) no Hoare annotation was computed. [2020-12-09 18:50:49,899 INFO L258 CegarLoopResult]: At program point L68-3(lines 68 69) the Hoare annotation is: false [2020-12-09 18:50:49,899 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 18:50:49,899 INFO L262 CegarLoopResult]: For program point L136-1(lines 136 141) no Hoare annotation was computed. [2020-12-09 18:50:49,899 INFO L262 CegarLoopResult]: For program point L103-1(lines 103 117) no Hoare annotation was computed. [2020-12-09 18:50:49,899 INFO L258 CegarLoopResult]: At program point L136-2(lines 136 141) the Hoare annotation is: false [2020-12-09 18:50:49,899 INFO L262 CegarLoopResult]: For program point L103-3(lines 103 117) no Hoare annotation was computed. [2020-12-09 18:50:49,899 INFO L262 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-12-09 18:50:49,899 INFO L262 CegarLoopResult]: For program point L120-2(lines 25 163) no Hoare annotation was computed. [2020-12-09 18:50:49,899 INFO L262 CegarLoopResult]: For program point L71-2(lines 71 72) no Hoare annotation was computed. [2020-12-09 18:50:49,900 INFO L258 CegarLoopResult]: At program point L71-3(lines 71 72) the Hoare annotation is: false [2020-12-09 18:50:49,900 INFO L262 CegarLoopResult]: For program point L154(lines 154 159) no Hoare annotation was computed. [2020-12-09 18:50:49,900 INFO L262 CegarLoopResult]: For program point L154-1(lines 142 161) no Hoare annotation was computed. [2020-12-09 18:50:49,900 INFO L262 CegarLoopResult]: For program point L154-2(lines 154 159) no Hoare annotation was computed. [2020-12-09 18:50:49,900 INFO L262 CegarLoopResult]: For program point L55(lines 25 163) no Hoare annotation was computed. [2020-12-09 18:50:49,900 INFO L262 CegarLoopResult]: For program point L122-1(lines 25 163) no Hoare annotation was computed. [2020-12-09 18:50:49,900 INFO L262 CegarLoopResult]: For program point L56(lines 56 62) no Hoare annotation was computed. [2020-12-09 18:50:49,900 INFO L262 CegarLoopResult]: For program point L106(lines 106 107) no Hoare annotation was computed. [2020-12-09 18:50:49,900 INFO L262 CegarLoopResult]: For program point L106-2(lines 103 117) no Hoare annotation was computed. [2020-12-09 18:50:49,900 INFO L262 CegarLoopResult]: For program point L57-2(lines 57 58) no Hoare annotation was computed. [2020-12-09 18:50:49,900 INFO L258 CegarLoopResult]: At program point L57-3(lines 57 58) the Hoare annotation is: false [2020-12-09 18:50:49,901 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 18:50:49,901 INFO L258 CegarLoopResult]: At program point L108-1(lines 103 117) the Hoare annotation is: false [2020-12-09 18:50:49,901 INFO L262 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-12-09 18:50:49,901 INFO L262 CegarLoopResult]: For program point L93-2(lines 89 100) no Hoare annotation was computed. [2020-12-09 18:50:49,901 INFO L262 CegarLoopResult]: For program point L60-2(lines 60 61) no Hoare annotation was computed. [2020-12-09 18:50:49,901 INFO L258 CegarLoopResult]: At program point L60-3(lines 60 61) the Hoare annotation is: false [2020-12-09 18:50:49,901 INFO L262 CegarLoopResult]: For program point L176(lines 176 179) no Hoare annotation was computed. [2020-12-09 18:50:49,901 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 18:50:49,901 INFO L262 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-12-09 18:50:49,901 INFO L262 CegarLoopResult]: For program point L144(lines 144 153) no Hoare annotation was computed. [2020-12-09 18:50:49,902 INFO L262 CegarLoopResult]: For program point L45(lines 45 47) no Hoare annotation was computed. [2020-12-09 18:50:49,902 INFO L262 CegarLoopResult]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2020-12-09 18:50:49,902 INFO L258 CegarLoopResult]: At program point L29-2(lines 29 34) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_double_~y (fp.neg (_ +zero 11 53)))) [2020-12-09 18:50:49,902 INFO L262 CegarLoopResult]: For program point L112(lines 112 113) no Hoare annotation was computed. [2020-12-09 18:50:49,902 INFO L258 CegarLoopResult]: At program point L162(lines 25 163) the Hoare annotation is: (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= |ULTIMATE.start_fmod_double_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) [2020-12-09 18:50:49,902 INFO L258 CegarLoopResult]: At program point L129-2(lines 129 133) the Hoare annotation is: false [2020-12-09 18:50:49,902 INFO L262 CegarLoopResult]: For program point L129-3(lines 25 163) no Hoare annotation was computed. [2020-12-09 18:50:49,902 INFO L262 CegarLoopResult]: For program point L147(lines 147 153) no Hoare annotation was computed. [2020-12-09 18:50:49,902 INFO L262 CegarLoopResult]: For program point L81(lines 81 87) no Hoare annotation was computed. [2020-12-09 18:50:49,903 INFO L262 CegarLoopResult]: For program point L48(lines 48 53) no Hoare annotation was computed. [2020-12-09 18:50:49,903 INFO L262 CegarLoopResult]: For program point L81-2(lines 25 163) no Hoare annotation was computed. [2020-12-09 18:50:49,903 INFO L262 CegarLoopResult]: For program point L48-2(lines 25 163) no Hoare annotation was computed. [2020-12-09 18:50:49,903 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 18:50:49,903 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2020-12-09 18:50:49,903 INFO L265 CegarLoopResult]: At program point L181(lines 165 182) the Hoare annotation is: true [2020-12-09 18:50:49,903 INFO L262 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2020-12-09 18:50:49,903 INFO L262 CegarLoopResult]: For program point L66(lines 25 163) no Hoare annotation was computed. [2020-12-09 18:50:49,903 INFO L262 CegarLoopResult]: For program point L67(lines 67 73) no Hoare annotation was computed. [2020-12-09 18:50:49,903 INFO L262 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2020-12-09 18:50:49,904 INFO L258 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) [2020-12-09 18:50:49,904 INFO L262 CegarLoopResult]: For program point L134(lines 134 161) no Hoare annotation was computed. [2020-12-09 18:50:49,904 INFO L262 CegarLoopResult]: For program point L35(lines 35 40) no Hoare annotation was computed. [2020-12-09 18:50:49,904 INFO L262 CegarLoopResult]: For program point L35-1(lines 25 163) no Hoare annotation was computed. [2020-12-09 18:50:49,904 INFO L262 CegarLoopResult]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2020-12-09 18:50:49,913 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:50:49,916 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:50:49,917 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:50:49,917 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:50:49,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-09 18:50:49,917 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:50:49,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-09 18:50:49,918 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:50:49,918 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:50:49,918 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-09 18:50:49,918 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:50:49,919 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-09 18:50:49,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:50:49 BoogieIcfgContainer [2020-12-09 18:50:49,921 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 18:50:49,921 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 18:50:49,921 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 18:50:49,921 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 18:50:49,922 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:50:31" (3/4) ... [2020-12-09 18:50:49,924 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 18:50:49,933 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 18:50:49,934 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-09 18:50:49,934 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 18:50:49,934 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 18:50:49,963 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_48c72382-7de7-45c9-8dc9-1cb092b93d76/bin/utaipan/witness.graphml [2020-12-09 18:50:49,963 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 18:50:49,964 INFO L168 Benchmark]: Toolchain (without parser) took 24277.73 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 37.7 MB in the beginning and 42.5 MB in the end (delta: -4.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2020-12-09 18:50:49,964 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 58.7 MB. Free memory was 41.2 MB in the beginning and 41.1 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:50:49,965 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.84 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 37.6 MB in the beginning and 56.1 MB in the end (delta: -18.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 18:50:49,965 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.07 ms. Allocated memory is still 75.5 MB. Free memory was 56.1 MB in the beginning and 53.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:50:49,966 INFO L168 Benchmark]: Boogie Preprocessor took 30.18 ms. Allocated memory is still 75.5 MB. Free memory was 53.9 MB in the beginning and 51.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:50:49,966 INFO L168 Benchmark]: RCFGBuilder took 5174.23 ms. Allocated memory is still 75.5 MB. Free memory was 51.7 MB in the beginning and 37.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2020-12-09 18:50:49,966 INFO L168 Benchmark]: TraceAbstraction took 18757.42 ms. Allocated memory is still 75.5 MB. Free memory was 37.4 MB in the beginning and 45.5 MB in the end (delta: -8.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:50:49,967 INFO L168 Benchmark]: Witness Printer took 41.91 ms. Allocated memory is still 75.5 MB. Free memory was 45.5 MB in the beginning and 42.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:50:49,969 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 58.7 MB. Free memory was 41.2 MB in the beginning and 41.1 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 234.84 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 37.6 MB in the beginning and 56.1 MB in the end (delta: -18.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.07 ms. Allocated memory is still 75.5 MB. Free memory was 56.1 MB in the beginning and 53.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.18 ms. Allocated memory is still 75.5 MB. Free memory was 53.9 MB in the beginning and 51.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5174.23 ms. Allocated memory is still 75.5 MB. Free memory was 51.7 MB in the beginning and 37.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18757.42 ms. Allocated memory is still 75.5 MB. Free memory was 37.4 MB in the beginning and 45.5 MB in the end (delta: -8.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 41.91 ms. Allocated memory is still 75.5 MB. Free memory was 45.5 MB in the beginning and 42.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 177]: 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: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant [2020-12-09 18:50:49,974 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:50:49,974 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant [2020-12-09 18:50:49,974 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:50:49,974 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:50:49,975 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-09 18:50:49,975 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:50:49,975 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-09 18:50:49,975 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:50:49,975 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:50:49,975 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-09 18:50:49,975 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:50:49,975 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_fmod_double_~x : C_DOUBLE :: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())), ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())))) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 78 SDslu, 165 SDs, 0 SdLazy, 18 SolverSat, 1 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 34 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 4 QuantifiedInterpolants, 1937 SizeOfPredicates, 16 NumberOfNonLiveVariables, 199 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...