./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl --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 7a3d3bb15f1283b96fbc9519b4946e30f904b241ec984b139ceb6db5a438fc07 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:18:36,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:18:36,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:18:36,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:18:36,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:18:36,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:18:36,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:18:36,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:18:36,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:18:36,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:18:36,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:18:36,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:18:36,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:18:36,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:18:36,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:18:36,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:18:36,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:18:36,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:18:36,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:18:36,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:18:36,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:18:36,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:18:36,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:18:36,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:18:36,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:18:36,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:18:36,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:18:36,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:18:36,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:18:36,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:18:36,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:18:36,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:18:36,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:18:36,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:18:36,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:18:36,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:18:36,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:18:36,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:18:36,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:18:36,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:18:36,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:18:36,824 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:18:36,858 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:18:36,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:18:36,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:18:36,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:18:36,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:18:36,861 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:18:36,861 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:18:36,861 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:18:36,862 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:18:36,862 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:18:36,862 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:18:36,862 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:18:36,863 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:18:36,863 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:18:36,863 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:18:36,864 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:18:36,864 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:18:36,864 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:18:36,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:18:36,865 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:18:36,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:18:36,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:18:36,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:18:36,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:18:36,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:18:36,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:18:36,867 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:18:36,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:18:36,868 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:18:36,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:18:36,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:18:36,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:18:36,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:18:36,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:18:36,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:18:36,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:18:36,870 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:18:36,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:18:36,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:18:36,871 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:18:36,871 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:18:36,872 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_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a3d3bb15f1283b96fbc9519b4946e30f904b241ec984b139ceb6db5a438fc07 [2021-11-23 17:18:37,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:18:37,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:18:37,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:18:37,229 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:18:37,230 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:18:37,244 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2021-11-23 17:18:37,313 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/data/f066e1b4c/1cf225ac790046169667d8acfb4c9c13/FLAGa2b272b98 [2021-11-23 17:18:37,823 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:18:37,824 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2021-11-23 17:18:37,833 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/data/f066e1b4c/1cf225ac790046169667d8acfb4c9c13/FLAGa2b272b98 [2021-11-23 17:18:38,180 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/data/f066e1b4c/1cf225ac790046169667d8acfb4c9c13 [2021-11-23 17:18:38,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:18:38,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:18:38,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:18:38,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:18:38,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:18:38,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:18:38" (1/1) ... [2021-11-23 17:18:38,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4778c619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:38, skipping insertion in model container [2021-11-23 17:18:38,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:18:38" (1/1) ... [2021-11-23 17:18:38,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:18:38,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:18:38,493 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c[4118,4131] [2021-11-23 17:18:38,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:18:38,508 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:18:38,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c[4118,4131] [2021-11-23 17:18:38,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:18:38,583 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:18:38,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:38 WrapperNode [2021-11-23 17:18:38,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:18:38,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:18:38,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:18:38,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:18:38,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:38" (1/1) ... [2021-11-23 17:18:38,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:38" (1/1) ... [2021-11-23 17:18:38,664 INFO L137 Inliner]: procedures = 18, calls = 34, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 206 [2021-11-23 17:18:38,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:18:38,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:18:38,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:18:38,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:18:38,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:38" (1/1) ... [2021-11-23 17:18:38,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:38" (1/1) ... [2021-11-23 17:18:38,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:38" (1/1) ... [2021-11-23 17:18:38,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:38" (1/1) ... [2021-11-23 17:18:38,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:38" (1/1) ... [2021-11-23 17:18:38,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:38" (1/1) ... [2021-11-23 17:18:38,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:38" (1/1) ... [2021-11-23 17:18:38,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:18:38,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:18:38,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:18:38,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:18:38,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:38" (1/1) ... [2021-11-23 17:18:38,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:18:38,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:18:38,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:18:38,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:18:38,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:18:38,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:18:38,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:18:38,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 17:18:38,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:18:38,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-23 17:18:38,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:18:38,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:18:38,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:18:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:18:39,002 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:18:39,004 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:18:39,346 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:18:39,368 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:18:39,377 INFO L158 Benchmark]: Toolchain (without parser) took 1191.27ms. Allocated memory is still 100.7MB. Free memory was 65.7MB in the beginning and 54.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2021-11-23 17:18:39,378 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 100.7MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:18:39,379 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.04ms. Allocated memory is still 100.7MB. Free memory was 65.5MB in the beginning and 74.2MB in the end (delta: -8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:18:39,380 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.13ms. Allocated memory is still 100.7MB. Free memory was 74.2MB in the beginning and 71.7MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:18:39,381 INFO L158 Benchmark]: Boogie Preprocessor took 71.80ms. Allocated memory is still 100.7MB. Free memory was 71.7MB in the beginning and 70.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:18:39,382 INFO L158 Benchmark]: RCFGBuilder took 634.66ms. Allocated memory is still 100.7MB. Free memory was 70.2MB in the beginning and 54.9MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 17:18:39,386 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 100.7MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.04ms. Allocated memory is still 100.7MB. Free memory was 65.5MB in the beginning and 74.2MB in the end (delta: -8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.13ms. Allocated memory is still 100.7MB. Free memory was 74.2MB in the beginning and 71.7MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.80ms. Allocated memory is still 100.7MB. Free memory was 71.7MB in the beginning and 70.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 634.66ms. Allocated memory is still 100.7MB. Free memory was 70.2MB in the beginning and 54.9MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:18:39,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl --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 7a3d3bb15f1283b96fbc9519b4946e30f904b241ec984b139ceb6db5a438fc07 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:18:42,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:18:42,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:18:42,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:18:42,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:18:42,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:18:42,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:18:42,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:18:42,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:18:42,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:18:42,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:18:42,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:18:42,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:18:42,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:18:42,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:18:42,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:18:42,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:18:42,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:18:42,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:18:42,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:18:42,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:18:42,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:18:42,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:18:42,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:18:42,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:18:42,535 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:18:42,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:18:42,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:18:42,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:18:42,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:18:42,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:18:42,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:18:42,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:18:42,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:18:42,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:18:42,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:18:42,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:18:42,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:18:42,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:18:42,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:18:42,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:18:42,551 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:18:42,592 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:18:42,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:18:42,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:18:42,594 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:18:42,595 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:18:42,597 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:18:42,597 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:18:42,598 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:18:42,598 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:18:42,598 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:18:42,600 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:18:42,600 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:18:42,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:18:42,603 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:18:42,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:18:42,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:18:42,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:18:42,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:18:42,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:18:42,605 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:18:42,605 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:18:42,605 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:18:42,606 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:18:42,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:18:42,607 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:18:42,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:18:42,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:18:42,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:18:42,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:18:42,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:18:42,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:18:42,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:18:42,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:18:42,610 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:18:42,611 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:18:42,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:18:42,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:18:42,612 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:18:42,612 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_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a3d3bb15f1283b96fbc9519b4946e30f904b241ec984b139ceb6db5a438fc07 [2021-11-23 17:18:43,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:18:43,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:18:43,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:18:43,160 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:18:43,161 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:18:43,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2021-11-23 17:18:43,246 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/data/198518b01/37ee0fbb3c9d46b7991012e9f94f2aa0/FLAGf62bc2cb8 [2021-11-23 17:18:43,865 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:18:43,866 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2021-11-23 17:18:43,880 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/data/198518b01/37ee0fbb3c9d46b7991012e9f94f2aa0/FLAGf62bc2cb8 [2021-11-23 17:18:44,241 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/data/198518b01/37ee0fbb3c9d46b7991012e9f94f2aa0 [2021-11-23 17:18:44,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:18:44,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:18:44,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:18:44,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:18:44,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:18:44,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:18:44" (1/1) ... [2021-11-23 17:18:44,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@250ce288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:44, skipping insertion in model container [2021-11-23 17:18:44,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:18:44" (1/1) ... [2021-11-23 17:18:44,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:18:44,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:18:44,543 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c[4118,4131] [2021-11-23 17:18:44,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:18:44,586 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:18:44,708 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c[4118,4131] [2021-11-23 17:18:44,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:18:44,737 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:18:44,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:44 WrapperNode [2021-11-23 17:18:44,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:18:44,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:18:44,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:18:44,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:18:44,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:44" (1/1) ... [2021-11-23 17:18:44,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:44" (1/1) ... [2021-11-23 17:18:44,837 INFO L137 Inliner]: procedures = 21, calls = 34, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 206 [2021-11-23 17:18:44,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:18:44,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:18:44,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:18:44,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:18:44,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:44" (1/1) ... [2021-11-23 17:18:44,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:44" (1/1) ... [2021-11-23 17:18:44,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:44" (1/1) ... [2021-11-23 17:18:44,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:44" (1/1) ... [2021-11-23 17:18:44,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:44" (1/1) ... [2021-11-23 17:18:44,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:44" (1/1) ... [2021-11-23 17:18:44,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:44" (1/1) ... [2021-11-23 17:18:44,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:18:44,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:18:44,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:18:44,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:18:44,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:44" (1/1) ... [2021-11-23 17:18:44,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:18:44,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:18:44,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:18:44,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:18:45,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:18:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:18:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:18:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-23 17:18:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:18:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:18:45,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:18:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-23 17:18:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:18:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:18:45,182 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:18:45,184 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:19:00,035 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:19:00,042 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:19:00,043 INFO L301 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-23 17:19:00,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:19:00 BoogieIcfgContainer [2021-11-23 17:19:00,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:19:00,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:19:00,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:19:00,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:19:00,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:18:44" (1/3) ... [2021-11-23 17:19:00,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c1e029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:19:00, skipping insertion in model container [2021-11-23 17:19:00,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:44" (2/3) ... [2021-11-23 17:19:00,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c1e029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:19:00, skipping insertion in model container [2021-11-23 17:19:00,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:19:00" (3/3) ... [2021-11-23 17:19:00,055 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b.c [2021-11-23 17:19:00,065 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:19:00,066 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:19:00,135 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:19:00,143 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 17:19:00,144 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:19:00,172 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:19:00,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 17:19:00,178 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:19:00,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:19:00,180 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:19:00,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:19:00,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2021-11-23 17:19:00,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:19:00,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390523937] [2021-11-23 17:19:00,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:19:00,203 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:19:00,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:19:00,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:19:00,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:19:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:19:01,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 17:19:01,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:19:01,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:19:01,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:19:01,285 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:19:01,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390523937] [2021-11-23 17:19:01,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1390523937] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:19:01,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:19:01,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 17:19:01,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366019280] [2021-11-23 17:19:01,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:19:01,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 17:19:01,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:19:01,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 17:19:01,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 17:19:01,329 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:19:01,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:19:01,352 INFO L93 Difference]: Finished difference Result 86 states and 140 transitions. [2021-11-23 17:19:01,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 17:19:01,354 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-23 17:19:01,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:19:01,365 INFO L225 Difference]: With dead ends: 86 [2021-11-23 17:19:01,366 INFO L226 Difference]: Without dead ends: 41 [2021-11-23 17:19:01,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 17:19:01,373 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:19:01,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 17:19:01,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-23 17:19:01,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-11-23 17:19:01,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:19:01,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2021-11-23 17:19:01,416 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2021-11-23 17:19:01,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:19:01,421 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2021-11-23 17:19:01,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:19:01,422 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2021-11-23 17:19:01,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 17:19:01,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:19:01,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:19:01,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:19:01,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:19:01,648 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:19:01,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:19:01,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2021-11-23 17:19:01,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:19:01,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768955277] [2021-11-23 17:19:01,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:19:01,650 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:19:01,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:19:01,651 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:19:01,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 17:19:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:19:02,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 17:19:02,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:19:02,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:19:02,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:19:02,616 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:19:02,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768955277] [2021-11-23 17:19:02,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768955277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:19:02,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:19:02,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 17:19:02,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20106620] [2021-11-23 17:19:02,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:19:02,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 17:19:02,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:19:02,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 17:19:02,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 17:19:02,620 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:19:02,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:19:02,632 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2021-11-23 17:19:02,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 17:19:02,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-23 17:19:02,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:19:02,635 INFO L225 Difference]: With dead ends: 46 [2021-11-23 17:19:02,635 INFO L226 Difference]: Without dead ends: 41 [2021-11-23 17:19:02,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 17:19:02,638 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:19:02,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2021-11-23 17:19:02,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-23 17:19:02,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-11-23 17:19:02,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.35) internal successors, (54), 40 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:19:02,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2021-11-23 17:19:02,649 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 10 [2021-11-23 17:19:02,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:19:02,649 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 54 transitions. [2021-11-23 17:19:02,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:19:02,650 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2021-11-23 17:19:02,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 17:19:02,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:19:02,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:19:02,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 17:19:02,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:19:02,874 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:19:02,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:19:02,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1244066674, now seen corresponding path program 1 times [2021-11-23 17:19:02,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:19:02,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100171757] [2021-11-23 17:19:02,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:19:02,875 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:19:02,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:19:02,877 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:19:02,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 17:19:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:19:03,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 17:19:03,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:19:04,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:19:04,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:19:04,280 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:19:04,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100171757] [2021-11-23 17:19:04,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100171757] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:19:04,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:19:04,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 17:19:04,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797976598] [2021-11-23 17:19:04,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:19:04,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 17:19:04,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:19:04,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 17:19:04,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-23 17:19:04,283 INFO L87 Difference]: Start difference. First operand 41 states and 54 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:19:08,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:19:10,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:19:13,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:19:15,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:19:18,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:19:20,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:19:22,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:19:24,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:19:27,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:19:29,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:19:29,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:19:29,122 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2021-11-23 17:19:29,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 17:19:29,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-23 17:19:29,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:19:29,167 INFO L225 Difference]: With dead ends: 54 [2021-11-23 17:19:29,167 INFO L226 Difference]: Without dead ends: 49 [2021-11-23 17:19:29,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-23 17:19:29,169 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 47 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2021-11-23 17:19:29,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 175 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 9 Unknown, 0 Unchecked, 24.4s Time] [2021-11-23 17:19:29,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-23 17:19:29,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 41. [2021-11-23 17:19:29,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.325) internal successors, (53), 40 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:19:29,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2021-11-23 17:19:29,180 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 11 [2021-11-23 17:19:29,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:19:29,181 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2021-11-23 17:19:29,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:19:29,182 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2021-11-23 17:19:29,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 17:19:29,183 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:19:29,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:19:29,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 17:19:29,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:19:29,399 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:19:29,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:19:29,399 INFO L85 PathProgramCache]: Analyzing trace with hash 23006450, now seen corresponding path program 1 times [2021-11-23 17:19:29,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:19:29,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209086702] [2021-11-23 17:19:29,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:19:29,405 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:19:29,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:19:29,407 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:19:29,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 17:19:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:19:29,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 17:19:29,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:19:30,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:19:30,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:19:30,187 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:19:30,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209086702] [2021-11-23 17:19:30,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209086702] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:19:30,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:19:30,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 17:19:30,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446919416] [2021-11-23 17:19:30,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:19:30,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 17:19:30,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:19:30,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 17:19:30,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 17:19:30,190 INFO L87 Difference]: Start difference. First operand 41 states and 53 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:19:30,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:19:30,193 INFO L93 Difference]: Finished difference Result 41 states and 53 transitions. [2021-11-23 17:19:30,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 17:19:30,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-23 17:19:30,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:19:30,194 INFO L225 Difference]: With dead ends: 41 [2021-11-23 17:19:30,194 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 17:19:30,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 17:19:30,196 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:19:30,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 3 Unchecked, 0.0s Time] [2021-11-23 17:19:30,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 17:19:30,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 17:19:30,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:19:30,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 17:19:30,199 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-11-23 17:19:30,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:19:30,200 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 17:19:30,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:19:30,200 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 17:19:30,201 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 17:19:30,204 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 17:19:30,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 17:19:30,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:19:30,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 17:19:30,743 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 96) no Hoare annotation was computed. [2021-11-23 17:19:30,744 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 65) no Hoare annotation was computed. [2021-11-23 17:19:30,744 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 119) no Hoare annotation was computed. [2021-11-23 17:19:30,744 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 97) no Hoare annotation was computed. [2021-11-23 17:19:30,745 INFO L854 garLoopResultBuilder]: At program point L143(lines 107 144) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_log10f_#res#1| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_log10f_~x#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 17:19:30,745 INFO L858 garLoopResultBuilder]: For program point L160(lines 160 163) no Hoare annotation was computed. [2021-11-23 17:19:30,745 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2021-11-23 17:19:30,745 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 17:19:30,745 INFO L854 garLoopResultBuilder]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2021-11-23 17:19:30,745 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 17:19:30,745 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2021-11-23 17:19:30,746 INFO L854 garLoopResultBuilder]: At program point L111-2(lines 111 115) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_log10f_~x#1|)) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 17:19:30,746 INFO L858 garLoopResultBuilder]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2021-11-23 17:19:30,746 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 38) no Hoare annotation was computed. [2021-11-23 17:19:30,746 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-11-23 17:19:30,746 INFO L858 garLoopResultBuilder]: For program point L120(lines 120 121) no Hoare annotation was computed. [2021-11-23 17:19:30,746 INFO L858 garLoopResultBuilder]: For program point L87(lines 87 91) no Hoare annotation was computed. [2021-11-23 17:19:30,747 INFO L858 garLoopResultBuilder]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2021-11-23 17:19:30,747 INFO L854 garLoopResultBuilder]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2021-11-23 17:19:30,747 INFO L858 garLoopResultBuilder]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2021-11-23 17:19:30,747 INFO L854 garLoopResultBuilder]: At program point L96(lines 22 98) the Hoare annotation is: false [2021-11-23 17:19:30,747 INFO L858 garLoopResultBuilder]: For program point L39(lines 39 47) no Hoare annotation was computed. [2021-11-23 17:19:30,748 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2021-11-23 17:19:30,748 INFO L858 garLoopResultBuilder]: For program point L122(lines 122 123) no Hoare annotation was computed. [2021-11-23 17:19:30,748 INFO L854 garLoopResultBuilder]: At program point L147(line 147) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_log10f_#res#1| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_log10f_~x#1|) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|)) [2021-11-23 17:19:30,748 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 17:19:30,749 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 161) no Hoare annotation was computed. [2021-11-23 17:19:30,749 INFO L861 garLoopResultBuilder]: At program point L165(lines 149 166) the Hoare annotation is: true [2021-11-23 17:19:30,749 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2021-11-23 17:19:30,749 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 17:19:30,750 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 132) no Hoare annotation was computed. [2021-11-23 17:19:30,750 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2021-11-23 17:19:30,750 INFO L858 garLoopResultBuilder]: For program point L58(lines 58 74) no Hoare annotation was computed. [2021-11-23 17:19:30,750 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2021-11-23 17:19:30,751 INFO L854 garLoopResultBuilder]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2021-11-23 17:19:30,751 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 66) no Hoare annotation was computed. [2021-11-23 17:19:30,751 INFO L858 garLoopResultBuilder]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2021-11-23 17:19:30,751 INFO L854 garLoopResultBuilder]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2021-11-23 17:19:30,752 INFO L858 garLoopResultBuilder]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2021-11-23 17:19:30,752 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2021-11-23 17:19:30,752 INFO L854 garLoopResultBuilder]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2021-11-23 17:19:30,752 INFO L858 garLoopResultBuilder]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2021-11-23 17:19:30,753 INFO L858 garLoopResultBuilder]: For program point L68(lines 68 73) no Hoare annotation was computed. [2021-11-23 17:19:30,753 INFO L858 garLoopResultBuilder]: For program point L35(lines 35 36) no Hoare annotation was computed. [2021-11-23 17:19:30,757 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-23 17:19:30,759 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 17:19:30,770 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:19:30,771 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:19:30,775 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,778 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:19:30,778 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:19:30,779 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,780 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,781 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,781 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,781 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,782 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,782 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,782 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,783 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,785 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,785 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,785 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,786 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,786 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,786 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,787 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,787 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,789 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,789 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,790 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,790 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,790 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,791 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,791 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,791 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,793 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,793 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,799 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,799 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,800 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,800 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,800 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,800 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:19:30 BoogieIcfgContainer [2021-11-23 17:19:30,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 17:19:30,803 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 17:19:30,803 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 17:19:30,803 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 17:19:30,804 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:19:00" (3/4) ... [2021-11-23 17:19:30,808 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 17:19:30,822 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-11-23 17:19:30,823 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-23 17:19:30,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 17:19:30,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 17:19:30,853 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-23 17:19:30,854 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-23 17:19:30,855 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2021-11-23 17:19:30,890 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/witness.graphml [2021-11-23 17:19:30,891 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 17:19:30,892 INFO L158 Benchmark]: Toolchain (without parser) took 46644.33ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 29.0MB in the beginning and 39.3MB in the end (delta: -10.2MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2021-11-23 17:19:30,892 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 52.4MB. Free memory was 33.9MB in the beginning and 33.8MB in the end (delta: 38.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:19:30,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 481.54ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 28.9MB in the beginning and 45.1MB in the end (delta: -16.3MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2021-11-23 17:19:30,893 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.91ms. Allocated memory is still 65.0MB. Free memory was 45.1MB in the beginning and 42.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:19:30,894 INFO L158 Benchmark]: Boogie Preprocessor took 95.99ms. Allocated memory is still 65.0MB. Free memory was 42.9MB in the beginning and 40.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:19:30,894 INFO L158 Benchmark]: RCFGBuilder took 15108.41ms. Allocated memory is still 65.0MB. Free memory was 40.7MB in the beginning and 36.8MB in the end (delta: 3.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2021-11-23 17:19:30,895 INFO L158 Benchmark]: TraceAbstraction took 30754.82ms. Allocated memory is still 65.0MB. Free memory was 36.4MB in the beginning and 44.9MB in the end (delta: -8.4MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2021-11-23 17:19:30,895 INFO L158 Benchmark]: Witness Printer took 88.05ms. Allocated memory is still 65.0MB. Free memory was 44.9MB in the beginning and 39.3MB in the end (delta: 5.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:19:30,898 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 52.4MB. Free memory was 33.9MB in the beginning and 33.8MB in the end (delta: 38.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 481.54ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 28.9MB in the beginning and 45.1MB in the end (delta: -16.3MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.91ms. Allocated memory is still 65.0MB. Free memory was 45.1MB in the beginning and 42.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.99ms. Allocated memory is still 65.0MB. Free memory was 42.9MB in the beginning and 40.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 15108.41ms. Allocated memory is still 65.0MB. Free memory was 40.7MB in the beginning and 36.8MB in the end (delta: 3.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 30754.82ms. Allocated memory is still 65.0MB. Free memory was 36.4MB in the beginning and 44.9MB in the end (delta: -8.4MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Witness Printer took 88.05ms. Allocated memory is still 65.0MB. Free memory was 44.9MB in the beginning and 39.3MB in the end (delta: 5.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,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[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 161]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 30.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 25.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 24.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 378 SdHoareTripleChecker+Invalid, 23.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 21 IncrementalHoareTripleChecker+Unchecked, 227 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 151 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 111 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 9 QuantifiedInterpolants, 280 SizeOfPredicates, 22 NumberOfNonLiveVariables, 219 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant [2021-11-23 17:19:30,939 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:19:30,939 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:19:30,939 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,940 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:19:30,940 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:19:30,940 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 107]: Loop Invariant [2021-11-23 17:19:30,941 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,941 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,941 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,942 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,946 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,947 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,947 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,947 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,948 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,948 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,948 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,949 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,949 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,949 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,949 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,950 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant [2021-11-23 17:19:30,951 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,951 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,951 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,951 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,951 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,959 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,960 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,960 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,961 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,961 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,961 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,961 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,961 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,962 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,962 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:19:30,962 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((\result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result RESULT: Ultimate proved your program to be correct! [2021-11-23 17:19:31,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d742e4-73b3-4b7c-9963-b49ae8355a91/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE