./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0530a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0530a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P --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 b38de4b3771aa524216757fa4f71e6ec5c1d192307f57d06dbabf379102384cd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 22:47:11,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 22:47:11,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 22:47:11,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 22:47:11,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 22:47:11,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 22:47:11,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 22:47:11,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 22:47:11,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 22:47:11,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 22:47:11,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 22:47:11,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 22:47:11,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 22:47:11,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 22:47:11,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 22:47:11,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 22:47:11,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 22:47:11,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 22:47:11,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 22:47:11,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 22:47:11,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 22:47:11,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 22:47:11,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 22:47:11,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 22:47:11,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 22:47:11,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 22:47:11,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 22:47:11,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 22:47:11,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 22:47:11,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 22:47:11,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 22:47:11,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 22:47:11,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 22:47:11,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 22:47:11,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 22:47:11,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 22:47:11,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 22:47:11,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 22:47:11,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 22:47:11,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 22:47:11,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 22:47:11,753 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-20 22:47:11,795 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 22:47:11,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 22:47:11,803 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 22:47:11,804 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 22:47:11,810 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 22:47:11,811 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 22:47:11,811 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 22:47:11,811 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 22:47:11,812 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 22:47:11,812 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 22:47:11,813 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 22:47:11,813 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 22:47:11,814 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 22:47:11,814 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 22:47:11,814 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 22:47:11,814 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 22:47:11,815 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 22:47:11,815 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 22:47:11,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 22:47:11,816 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 22:47:11,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 22:47:11,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 22:47:11,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 22:47:11,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 22:47:11,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 22:47:11,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 22:47:11,819 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 22:47:11,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 22:47:11,820 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 22:47:11,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 22:47:11,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 22:47:11,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 22:47:11,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:47:11,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 22:47:11,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 22:47:11,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 22:47:11,822 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 22:47:11,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 22:47:11,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 22:47:11,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 22:47:11,823 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 22:47:11,823 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_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b38de4b3771aa524216757fa4f71e6ec5c1d192307f57d06dbabf379102384cd [2021-11-20 22:47:12,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 22:47:12,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 22:47:12,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 22:47:12,095 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 22:47:12,095 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 22:47:12,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_0530a.c [2021-11-20 22:47:12,165 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/data/7b45f7e94/c17f8d41c4ee42008ad3e0833ad55e7f/FLAG87d0dffba [2021-11-20 22:47:12,658 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 22:47:12,659 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/sv-benchmarks/c/float-newlib/float_req_bl_0530a.c [2021-11-20 22:47:12,680 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/data/7b45f7e94/c17f8d41c4ee42008ad3e0833ad55e7f/FLAG87d0dffba [2021-11-20 22:47:12,986 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/data/7b45f7e94/c17f8d41c4ee42008ad3e0833ad55e7f [2021-11-20 22:47:12,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 22:47:12,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 22:47:12,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 22:47:12,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 22:47:12,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 22:47:12,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:47:12" (1/1) ... [2021-11-20 22:47:12,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ceed5c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:12, skipping insertion in model container [2021-11-20 22:47:12,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:47:12" (1/1) ... [2021-11-20 22:47:13,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 22:47:13,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 22:47:13,408 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_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/sv-benchmarks/c/float-newlib/float_req_bl_0530a.c[15590,15603] [2021-11-20 22:47:13,410 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:47:13,444 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 22:47:13,575 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_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/sv-benchmarks/c/float-newlib/float_req_bl_0530a.c[15590,15603] [2021-11-20 22:47:13,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:47:13,631 INFO L208 MainTranslator]: Completed translation [2021-11-20 22:47:13,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:13 WrapperNode [2021-11-20 22:47:13,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 22:47:13,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 22:47:13,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 22:47:13,634 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 22:47:13,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:13" (1/1) ... [2021-11-20 22:47:13,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:13" (1/1) ... [2021-11-20 22:47:13,762 INFO L137 Inliner]: procedures = 25, calls = 519, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 1066 [2021-11-20 22:47:13,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 22:47:13,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 22:47:13,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 22:47:13,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 22:47:13,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:13" (1/1) ... [2021-11-20 22:47:13,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:13" (1/1) ... [2021-11-20 22:47:13,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:13" (1/1) ... [2021-11-20 22:47:13,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:13" (1/1) ... [2021-11-20 22:47:13,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:13" (1/1) ... [2021-11-20 22:47:13,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:13" (1/1) ... [2021-11-20 22:47:13,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:13" (1/1) ... [2021-11-20 22:47:13,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 22:47:13,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 22:47:13,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 22:47:13,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 22:47:13,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:13" (1/1) ... [2021-11-20 22:47:13,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:47:13,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:47:13,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 22:47:14,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 22:47:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 22:47:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 22:47:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-20 22:47:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 22:47:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-11-20 22:47:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-11-20 22:47:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-20 22:47:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2021-11-20 22:47:14,018 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2021-11-20 22:47:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 22:47:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-20 22:47:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2021-11-20 22:47:14,018 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2021-11-20 22:47:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 22:47:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tanf [2021-11-20 22:47:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tanf [2021-11-20 22:47:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 22:47:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 22:47:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 22:47:14,276 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 22:47:14,277 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 22:47:15,152 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 22:47:15,361 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 22:47:15,361 INFO L301 CfgBuilder]: Removed 65 assume(true) statements. [2021-11-20 22:47:15,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:15 BoogieIcfgContainer [2021-11-20 22:47:15,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 22:47:15,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 22:47:15,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 22:47:15,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 22:47:15,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:47:12" (1/3) ... [2021-11-20 22:47:15,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@333a1ba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:47:15, skipping insertion in model container [2021-11-20 22:47:15,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:13" (2/3) ... [2021-11-20 22:47:15,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@333a1ba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:47:15, skipping insertion in model container [2021-11-20 22:47:15,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:15" (3/3) ... [2021-11-20 22:47:15,373 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0530a.c [2021-11-20 22:47:15,378 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 22:47:15,378 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 22:47:15,426 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 22:47:15,433 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 [2021-11-20 22:47:15,433 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 22:47:15,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 150 states have (on average 1.6933333333333334) internal successors, (254), 151 states have internal predecessors, (254), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-20 22:47:15,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-20 22:47:15,463 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:47:15,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:47:15,465 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:47:15,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:47:15,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1439887409, now seen corresponding path program 1 times [2021-11-20 22:47:15,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:47:15,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466923111] [2021-11-20 22:47:15,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:15,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:47:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:15,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:47:15,803 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:47:15,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466923111] [2021-11-20 22:47:15,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466923111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:47:15,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:47:15,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 22:47:15,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067417306] [2021-11-20 22:47:15,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:47:15,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 22:47:15,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:47:15,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 22:47:15,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 22:47:15,846 INFO L87 Difference]: Start difference. First operand has 167 states, 150 states have (on average 1.6933333333333334) internal successors, (254), 151 states have internal predecessors, (254), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) 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) [2021-11-20 22:47:16,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:47:16,057 INFO L93 Difference]: Finished difference Result 333 states and 562 transitions. [2021-11-20 22:47:16,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 22:47:16,060 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 [2021-11-20 22:47:16,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:47:16,073 INFO L225 Difference]: With dead ends: 333 [2021-11-20 22:47:16,074 INFO L226 Difference]: Without dead ends: 165 [2021-11-20 22:47:16,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 22:47:16,088 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 22:47:16,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 175 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 22:47:16,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-20 22:47:16,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2021-11-20 22:47:16,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 149 states have (on average 1.3691275167785235) internal successors, (204), 149 states have internal predecessors, (204), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-20 22:47:16,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 226 transitions. [2021-11-20 22:47:16,169 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 226 transitions. Word has length 9 [2021-11-20 22:47:16,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:47:16,169 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 226 transitions. [2021-11-20 22:47:16,170 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) [2021-11-20 22:47:16,170 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 226 transitions. [2021-11-20 22:47:16,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 22:47:16,171 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:47:16,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:47:16,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 22:47:16,172 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:47:16,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:47:16,173 INFO L85 PathProgramCache]: Analyzing trace with hash -364122791, now seen corresponding path program 1 times [2021-11-20 22:47:16,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:47:16,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596195320] [2021-11-20 22:47:16,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:16,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:47:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 22:47:16,309 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 22:47:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 22:47:16,472 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-20 22:47:16,473 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 22:47:16,475 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 22:47:16,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 22:47:16,480 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-20 22:47:16,483 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 22:47:16,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:47:16 BoogieIcfgContainer [2021-11-20 22:47:16,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 22:47:16,562 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 22:47:16,562 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 22:47:16,563 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 22:47:16,566 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:15" (3/4) ... [2021-11-20 22:47:16,568 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 22:47:16,568 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 22:47:16,570 INFO L158 Benchmark]: Toolchain (without parser) took 3579.73ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 83.5MB in the beginning and 87.5MB in the end (delta: -4.0MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2021-11-20 22:47:16,571 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 77.6MB. Free memory was 55.5MB in the beginning and 55.5MB in the end (delta: 43.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 22:47:16,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 641.89ms. Allocated memory is still 104.9MB. Free memory was 83.2MB in the beginning and 61.2MB in the end (delta: 21.9MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2021-11-20 22:47:16,578 INFO L158 Benchmark]: Boogie Procedure Inliner took 129.09ms. Allocated memory is still 104.9MB. Free memory was 61.2MB in the beginning and 54.3MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 22:47:16,578 INFO L158 Benchmark]: Boogie Preprocessor took 165.21ms. Allocated memory is still 104.9MB. Free memory was 54.3MB in the beginning and 47.4MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 22:47:16,579 INFO L158 Benchmark]: RCFGBuilder took 1435.51ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 47.4MB in the beginning and 100.1MB in the end (delta: -52.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-20 22:47:16,586 INFO L158 Benchmark]: TraceAbstraction took 1194.58ms. Allocated memory is still 134.2MB. Free memory was 99.3MB in the beginning and 87.5MB in the end (delta: 11.8MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. [2021-11-20 22:47:16,586 INFO L158 Benchmark]: Witness Printer took 6.87ms. Allocated memory is still 134.2MB. Free memory is still 87.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 22:47:16,589 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 77.6MB. Free memory was 55.5MB in the beginning and 55.5MB in the end (delta: 43.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 641.89ms. Allocated memory is still 104.9MB. Free memory was 83.2MB in the beginning and 61.2MB in the end (delta: 21.9MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 129.09ms. Allocated memory is still 104.9MB. Free memory was 61.2MB in the beginning and 54.3MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 165.21ms. Allocated memory is still 104.9MB. Free memory was 54.3MB in the beginning and 47.4MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1435.51ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 47.4MB in the beginning and 100.1MB in the end (delta: -52.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1194.58ms. Allocated memory is still 134.2MB. Free memory was 99.3MB in the beginning and 87.5MB in the end (delta: 11.8MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. * Witness Printer took 6.87ms. Allocated memory is still 134.2MB. Free memory is still 87.5MB. There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 629]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 628, overapproximation of someUnaryDOUBLEoperation at line 497, overapproximation of bitwiseAnd at line 591, overapproximation of someBinaryArithmeticFLOAToperation at line 596. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L79-L81] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L149] static const int init_jk_krempio[] = {4, 7, 9}; [L151-L155] static const float PIo2_krempio[] = { 1.5703125000e+00, 4.5776367188e-04, 2.5987625122e-05, 7.5437128544e-08, 6.0026650317e-11, 7.3896444519e-13, 5.3845816694e-15, 5.6378512969e-18, 8.3009228831e-20, 3.2756352257e-22, 6.3331015649e-25, }; [L157-L159] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L334-L352] static const __int32_t two_over_pi_rempio[] = { 0xA2, 0xF9, 0x83, 0x6E, 0x4E, 0x44, 0x15, 0x29, 0xFC, 0x27, 0x57, 0xD1, 0xF5, 0x34, 0xDD, 0xC0, 0xDB, 0x62, 0x95, 0x99, 0x3C, 0x43, 0x90, 0x41, 0xFE, 0x51, 0x63, 0xAB, 0xDE, 0xBB, 0xC5, 0x61, 0xB7, 0x24, 0x6E, 0x3A, 0x42, 0x4D, 0xD2, 0xE0, 0x06, 0x49, 0x2E, 0xEA, 0x09, 0xD1, 0x92, 0x1C, 0xFE, 0x1D, 0xEB, 0x1C, 0xB1, 0x29, 0xA7, 0x3E, 0xE8, 0x82, 0x35, 0xF5, 0x2E, 0xBB, 0x44, 0x84, 0xE9, 0x9C, 0x70, 0x26, 0xB4, 0x5F, 0x7E, 0x41, 0x39, 0x91, 0xD6, 0x39, 0x83, 0x53, 0x39, 0xF4, 0x9C, 0x84, 0x5F, 0x8B, 0xBD, 0xF9, 0x28, 0x3B, 0x1F, 0xF8, 0x97, 0xFF, 0xDE, 0x05, 0x98, 0x0F, 0xEF, 0x2F, 0x11, 0x8B, 0x5A, 0x0A, 0x6D, 0x1F, 0x6D, 0x36, 0x7E, 0xCF, 0x27, 0xCB, 0x09, 0xB7, 0x4F, 0x46, 0x3F, 0x66, 0x9E, 0x5F, 0xEA, 0x2D, 0x75, 0x27, 0xBA, 0xC7, 0xEB, 0xE5, 0xF1, 0x7B, 0x3D, 0x07, 0x39, 0xF7, 0x8A, 0x52, 0x92, 0xEA, 0x6B, 0xFB, 0x5F, 0xB1, 0x1F, 0x8D, 0x5D, 0x08, 0x56, 0x03, 0x30, 0x46, 0xFC, 0x7B, 0x6B, 0xAB, 0xF0, 0xCF, 0xBC, 0x20, 0x9A, 0xF4, 0x36, 0x1D, 0xA9, 0xE3, 0x91, 0x61, 0x5E, 0xE6, 0x1B, 0x08, 0x65, 0x99, 0x85, 0x5F, 0x14, 0xA0, 0x68, 0x40, 0x8D, 0xFF, 0xD8, 0x80, 0x4D, 0x73, 0x27, 0x31, 0x06, 0x06, 0x15, 0x56, 0xCA, 0x73, 0xA8, 0xC9, 0x60, 0xE2, 0x7B, 0xC0, 0x8C, 0x6B, }; [L354-L360] static const __int32_t npio2_hw_rempio[] = { 0x3fc90f00, 0x40490f00, 0x4096cb00, 0x40c90f00, 0x40fb5300, 0x4116cb00, 0x412fed00, 0x41490f00, 0x41623100, 0x417b5300, 0x418a3a00, 0x4196cb00, 0x41a35c00, 0x41afed00, 0x41bc7e00, 0x41c90f00, 0x41d5a000, 0x41e23100, 0x41eec200, 0x41fb5300, 0x4203f200, 0x420a3a00, 0x42108300, 0x4216cb00, 0x421d1400, 0x42235c00, 0x4229a500, 0x422fed00, 0x42363600, 0x423c7e00, 0x4242c700, 0x42490f00}; [L362-L371] static const float zero_rempio = 0.0000000000e+00, half_rempio = 5.0000000000e-01, two8_rempio = 2.5600000000e+02, invpio2_rempio = 6.3661980629e-01, pio2_1_rempio = 1.5707855225e+00, pio2_1t_rempio = 1.0804334124e-05, pio2_2_rempio = 1.0804273188e-05, pio2_2t_rempio = 6.0770999344e-11, pio2_3_rempio = 6.0770943833e-11, pio2_3t_rempio = 6.1232342629e-17; [L491-L499] static const float one_ktan = 1.0000000000e+00, pio4_ktan = 7.8539812565e-01, pio4lo_ktan = 3.7748947079e-08, T_ktan[] = { 3.3333334327e-01, 1.3333334029e-01, 5.3968254477e-02, 2.1869488060e-02, 8.8632395491e-03, 3.5920790397e-03, 1.4562094584e-03, 5.8804126456e-04, 2.4646313977e-04, 7.8179444245e-05, 7.1407252108e-05, -1.8558637748e-05, 2.5907305826e-05, }; [L624] float x = 0.0f; [L625] CALL, EXPR tan_float(x) [L582] float y[2], z = 0.0; [L583] __int32_t n, ix; VAL [\old(x)=0, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=0, y={13:0}, z=0, zero_krempio=0, zero_rempio=0] [L586] ieee_float_shape_type gf_u; [L587] gf_u.value = (x) [L588] EXPR gf_u.word [L588] (ix) = gf_u.word [L591] ix &= 0x7fffffff VAL [\old(x)=0, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=0, y={13:0}, z=0, zero_krempio=0, zero_rempio=0] [L592] COND FALSE !(ix <= 0x3f490fda) VAL [\old(x)=0, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, ix=2139095040, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=0, y={13:0}, z=0, zero_krempio=0, zero_rempio=0] [L595] COND TRUE !((ix) < 0x7f800000L) [L596] return x - x; [L596] return x - x; VAL [\old(x)=0, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, ix=2139095040, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=0, z=0, zero_krempio=0, zero_rempio=0] [L625] RET, EXPR tan_float(x) [L625] float res = tan_float(x); [L628] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, res=1000000000000000000000000000001, res == 0.0f && __signbit_float(res) == 0=0, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=0, zero_krempio=0, zero_rempio=0] [L628] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L629] reach_error() VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, res=1000000000000000000000000000001, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=0, zero_krempio=0, zero_rempio=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 167 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 175 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 175 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 22:47:16,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/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_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0530a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P --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 b38de4b3771aa524216757fa4f71e6ec5c1d192307f57d06dbabf379102384cd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 22:47:18,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 22:47:18,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 22:47:18,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 22:47:18,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 22:47:18,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 22:47:18,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 22:47:18,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 22:47:18,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 22:47:18,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 22:47:18,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 22:47:18,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 22:47:18,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 22:47:18,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 22:47:18,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 22:47:18,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 22:47:18,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 22:47:18,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 22:47:18,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 22:47:18,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 22:47:18,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 22:47:18,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 22:47:18,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 22:47:18,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 22:47:18,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 22:47:18,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 22:47:18,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 22:47:18,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 22:47:18,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 22:47:18,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 22:47:18,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 22:47:18,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 22:47:18,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 22:47:18,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 22:47:18,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 22:47:18,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 22:47:18,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 22:47:18,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 22:47:18,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 22:47:18,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 22:47:18,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 22:47:18,991 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-20 22:47:19,033 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 22:47:19,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 22:47:19,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 22:47:19,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 22:47:19,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 22:47:19,036 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 22:47:19,036 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 22:47:19,036 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 22:47:19,036 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 22:47:19,037 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 22:47:19,038 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 22:47:19,039 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 22:47:19,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 22:47:19,040 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 22:47:19,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 22:47:19,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 22:47:19,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 22:47:19,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 22:47:19,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 22:47:19,041 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 22:47:19,042 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 22:47:19,042 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 22:47:19,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 22:47:19,042 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 22:47:19,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 22:47:19,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 22:47:19,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 22:47:19,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 22:47:19,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:47:19,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 22:47:19,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 22:47:19,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 22:47:19,045 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-20 22:47:19,045 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 22:47:19,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 22:47:19,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 22:47:19,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 22:47:19,046 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_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b38de4b3771aa524216757fa4f71e6ec5c1d192307f57d06dbabf379102384cd [2021-11-20 22:47:19,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 22:47:19,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 22:47:19,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 22:47:19,433 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 22:47:19,434 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 22:47:19,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_0530a.c [2021-11-20 22:47:19,506 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/data/285599d73/7d3dd6145c3c429b9f1de8f0176fc728/FLAG39e24a595 [2021-11-20 22:47:20,214 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 22:47:20,215 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/sv-benchmarks/c/float-newlib/float_req_bl_0530a.c [2021-11-20 22:47:20,230 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/data/285599d73/7d3dd6145c3c429b9f1de8f0176fc728/FLAG39e24a595 [2021-11-20 22:47:20,444 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/data/285599d73/7d3dd6145c3c429b9f1de8f0176fc728 [2021-11-20 22:47:20,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 22:47:20,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 22:47:20,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 22:47:20,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 22:47:20,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 22:47:20,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:47:20" (1/1) ... [2021-11-20 22:47:20,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57da94d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:20, skipping insertion in model container [2021-11-20 22:47:20,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:47:20" (1/1) ... [2021-11-20 22:47:20,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 22:47:20,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 22:47:20,939 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_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/sv-benchmarks/c/float-newlib/float_req_bl_0530a.c[15590,15603] [2021-11-20 22:47:20,942 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:47:21,010 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 22:47:21,181 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_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/sv-benchmarks/c/float-newlib/float_req_bl_0530a.c[15590,15603] [2021-11-20 22:47:21,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:47:21,261 INFO L208 MainTranslator]: Completed translation [2021-11-20 22:47:21,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:21 WrapperNode [2021-11-20 22:47:21,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 22:47:21,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 22:47:21,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 22:47:21,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 22:47:21,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:21" (1/1) ... [2021-11-20 22:47:21,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:21" (1/1) ... [2021-11-20 22:47:21,408 INFO L137 Inliner]: procedures = 29, calls = 519, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 1064 [2021-11-20 22:47:21,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 22:47:21,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 22:47:21,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 22:47:21,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 22:47:21,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:21" (1/1) ... [2021-11-20 22:47:21,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:21" (1/1) ... [2021-11-20 22:47:21,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:21" (1/1) ... [2021-11-20 22:47:21,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:21" (1/1) ... [2021-11-20 22:47:21,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:21" (1/1) ... [2021-11-20 22:47:21,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:21" (1/1) ... [2021-11-20 22:47:21,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:21" (1/1) ... [2021-11-20 22:47:21,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 22:47:21,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 22:47:21,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 22:47:21,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 22:47:21,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:21" (1/1) ... [2021-11-20 22:47:21,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:47:21,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:47:21,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 22:47:21,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 22:47:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 22:47:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 22:47:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-20 22:47:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 22:47:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-20 22:47:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-11-20 22:47:21,617 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-11-20 22:47:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-20 22:47:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2021-11-20 22:47:21,617 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2021-11-20 22:47:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-20 22:47:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2021-11-20 22:47:21,618 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2021-11-20 22:47:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-20 22:47:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tanf [2021-11-20 22:47:21,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tanf [2021-11-20 22:47:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 22:47:21,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 22:47:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-20 22:47:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 22:47:21,874 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 22:47:21,876 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 22:47:51,785 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 22:47:51,794 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 22:47:51,794 INFO L301 CfgBuilder]: Removed 65 assume(true) statements. [2021-11-20 22:47:51,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:51 BoogieIcfgContainer [2021-11-20 22:47:51,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 22:47:51,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 22:47:51,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 22:47:51,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 22:47:51,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:47:20" (1/3) ... [2021-11-20 22:47:51,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563b9166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:47:51, skipping insertion in model container [2021-11-20 22:47:51,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:21" (2/3) ... [2021-11-20 22:47:51,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563b9166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:47:51, skipping insertion in model container [2021-11-20 22:47:51,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:51" (3/3) ... [2021-11-20 22:47:51,804 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0530a.c [2021-11-20 22:47:51,809 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 22:47:51,809 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 22:47:51,849 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 22:47:51,854 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 [2021-11-20 22:47:51,855 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 22:47:51,877 INFO L276 IsEmpty]: Start isEmpty. Operand has 247 states, 230 states have (on average 1.6695652173913043) internal successors, (384), 231 states have internal predecessors, (384), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-20 22:47:51,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 22:47:51,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:47:51,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:47:51,882 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:47:51,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:47:51,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1661351645, now seen corresponding path program 1 times [2021-11-20 22:47:51,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 22:47:51,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402711870] [2021-11-20 22:47:51,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:51,901 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 22:47:51,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 22:47:51,902 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 22:47:51,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 22:47:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:53,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 22:47:53,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:47:53,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:47:53,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:47:53,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:47:53,469 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 22:47:53,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402711870] [2021-11-20 22:47:53,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402711870] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 22:47:53,470 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:47:53,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 22:47:53,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925115602] [2021-11-20 22:47:53,472 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 22:47:53,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 22:47:53,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 22:47:53,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 22:47:53,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 22:47:53,501 INFO L87 Difference]: Start difference. First operand has 247 states, 230 states have (on average 1.6695652173913043) internal successors, (384), 231 states have internal predecessors, (384), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2021-11-20 22:47:53,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:47:53,610 INFO L93 Difference]: Finished difference Result 492 states and 821 transitions. [2021-11-20 22:47:53,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 22:47:53,622 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 [2021-11-20 22:47:53,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:47:53,637 INFO L225 Difference]: With dead ends: 492 [2021-11-20 22:47:53,642 INFO L226 Difference]: Without dead ends: 244 [2021-11-20 22:47:53,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 22:47:53,659 INFO L933 BasicCegarLoop]: 340 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, 340 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 [2021-11-20 22:47:53,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 22:47:53,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-11-20 22:47:53,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2021-11-20 22:47:53,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 228 states have (on average 1.381578947368421) internal successors, (315), 228 states have internal predecessors, (315), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-20 22:47:53,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 337 transitions. [2021-11-20 22:47:53,735 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 337 transitions. Word has length 10 [2021-11-20 22:47:53,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:47:53,736 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 337 transitions. [2021-11-20 22:47:53,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2021-11-20 22:47:53,736 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 337 transitions. [2021-11-20 22:47:53,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 22:47:53,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:47:53,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:47:53,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 22:47:53,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 22:47:53,945 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:47:53,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:47:53,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1285007371, now seen corresponding path program 1 times [2021-11-20 22:47:53,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 22:47:53,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974799841] [2021-11-20 22:47:53,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:53,950 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 22:47:53,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 22:47:53,952 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 22:47:53,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 22:47:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:55,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 22:47:55,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:47:55,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:47:55,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:47:56,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:47:56,005 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 22:47:56,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974799841] [2021-11-20 22:47:56,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974799841] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 22:47:56,006 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:47:56,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-20 22:47:56,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873883562] [2021-11-20 22:47:56,007 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 22:47:56,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 22:47:56,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 22:47:56,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 22:47:56,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-20 22:47:56,009 INFO L87 Difference]: Start difference. First operand 244 states and 337 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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) [2021-11-20 22:47:56,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:47:56,157 INFO L93 Difference]: Finished difference Result 290 states and 390 transitions. [2021-11-20 22:47:56,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:47:56,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 [2021-11-20 22:47:56,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:47:56,159 INFO L225 Difference]: With dead ends: 290 [2021-11-20 22:47:56,160 INFO L226 Difference]: Without dead ends: 54 [2021-11-20 22:47:56,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 22:47:56,162 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 16 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 22:47:56,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 208 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 2 Unchecked, 0.1s Time] [2021-11-20 22:47:56,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-20 22:47:56,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-11-20 22:47:56,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 49 states have (on average 1.183673469387755) internal successors, (58), 49 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 22:47:56,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2021-11-20 22:47:56,169 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 11 [2021-11-20 22:47:56,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:47:56,169 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2021-11-20 22:47:56,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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) [2021-11-20 22:47:56,170 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2021-11-20 22:47:56,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-20 22:47:56,171 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:47:56,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:47:56,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 22:47:56,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 22:47:56,393 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:47:56,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:47:56,394 INFO L85 PathProgramCache]: Analyzing trace with hash 632012606, now seen corresponding path program 1 times [2021-11-20 22:47:56,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 22:47:56,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641284156] [2021-11-20 22:47:56,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:56,395 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 22:47:56,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 22:47:56,396 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 22:47:56,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 22:47:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:59,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 22:47:59,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:47:59,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:47:59,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:48:01,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:48:01,834 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 22:48:01,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641284156] [2021-11-20 22:48:01,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641284156] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:01,835 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:48:01,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-20 22:48:01,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615892516] [2021-11-20 22:48:01,835 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:01,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 22:48:01,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 22:48:01,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 22:48:01,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-11-20 22:48:01,837 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 22:48:04,607 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:04,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:04,625 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2021-11-20 22:48:04,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 22:48:04,693 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2021-11-20 22:48:04,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:04,694 INFO L225 Difference]: With dead ends: 82 [2021-11-20 22:48:04,694 INFO L226 Difference]: Without dead ends: 54 [2021-11-20 22:48:04,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-11-20 22:48:04,696 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 53 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:04,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 338 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 1 Unknown, 45 Unchecked, 2.3s Time] [2021-11-20 22:48:04,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-20 22:48:04,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-11-20 22:48:04,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 49 states have (on average 1.163265306122449) internal successors, (57), 49 states have internal predecessors, (57), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 22:48:04,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2021-11-20 22:48:04,705 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 22 [2021-11-20 22:48:04,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:04,706 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2021-11-20 22:48:04,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 22:48:04,707 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2021-11-20 22:48:04,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-20 22:48:04,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:04,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:48:04,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 22:48:04,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 22:48:04,929 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:48:04,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:04,930 INFO L85 PathProgramCache]: Analyzing trace with hash 2039574363, now seen corresponding path program 1 times [2021-11-20 22:48:04,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 22:48:04,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1940437160] [2021-11-20 22:48:04,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:04,931 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 22:48:04,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 22:48:04,933 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 22:48:04,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 22:48:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:07,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 22:48:07,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:48:08,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:48:08,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:48:11,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:48:11,332 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 22:48:11,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1940437160] [2021-11-20 22:48:11,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1940437160] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:11,333 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:48:11,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-20 22:48:11,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520814378] [2021-11-20 22:48:11,333 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:11,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 22:48:11,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 22:48:11,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 22:48:11,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 22:48:11,335 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 22:48:14,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:17,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:19,331 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:22,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:22,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:22,408 INFO L93 Difference]: Finished difference Result 68 states and 75 transitions. [2021-11-20 22:48:22,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 22:48:22,410 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2021-11-20 22:48:22,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:22,411 INFO L225 Difference]: With dead ends: 68 [2021-11-20 22:48:22,411 INFO L226 Difference]: Without dead ends: 38 [2021-11-20 22:48:22,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-20 22:48:22,413 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 50 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:22,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 180 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2021-11-20 22:48:22,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-20 22:48:22,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-11-20 22:48:22,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 33 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 22:48:22,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2021-11-20 22:48:22,417 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 23 [2021-11-20 22:48:22,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:22,417 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2021-11-20 22:48:22,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 22:48:22,418 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2021-11-20 22:48:22,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-20 22:48:22,419 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:22,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:48:22,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 22:48:22,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 22:48:22,633 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:48:22,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:22,633 INFO L85 PathProgramCache]: Analyzing trace with hash 521946787, now seen corresponding path program 1 times [2021-11-20 22:48:22,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 22:48:22,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576013638] [2021-11-20 22:48:22,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:22,634 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 22:48:22,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 22:48:22,635 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 22:48:22,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 22:48:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:23,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 22:48:23,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:48:24,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:48:24,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:48:26,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:48:26,595 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 22:48:26,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576013638] [2021-11-20 22:48:26,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [576013638] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:26,595 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:48:26,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2021-11-20 22:48:26,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451098098] [2021-11-20 22:48:26,596 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:26,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-20 22:48:26,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 22:48:26,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-20 22:48:26,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-11-20 22:48:26,597 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 13 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 22:48:28,627 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:31,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:31,134 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2021-11-20 22:48:31,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 22:48:31,134 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 13 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2021-11-20 22:48:31,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:31,135 INFO L225 Difference]: With dead ends: 54 [2021-11-20 22:48:31,135 INFO L226 Difference]: Without dead ends: 51 [2021-11-20 22:48:31,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2021-11-20 22:48:31,137 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 62 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:31,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 237 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-20 22:48:31,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-20 22:48:31,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2021-11-20 22:48:31,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 38 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 22:48:31,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2021-11-20 22:48:31,142 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 23 [2021-11-20 22:48:31,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:31,142 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2021-11-20 22:48:31,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 13 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 22:48:31,143 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2021-11-20 22:48:31,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-20 22:48:31,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:31,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:48:31,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-20 22:48:31,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 22:48:31,344 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:48:31,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:31,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1202005157, now seen corresponding path program 1 times [2021-11-20 22:48:31,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 22:48:31,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782878340] [2021-11-20 22:48:31,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:31,346 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 22:48:31,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 22:48:31,347 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 22:48:31,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-20 22:48:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:32,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 22:48:32,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:48:33,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:48:33,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:48:33,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:48:33,574 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 22:48:33,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782878340] [2021-11-20 22:48:33,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1782878340] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:33,574 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:48:33,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-20 22:48:33,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777853018] [2021-11-20 22:48:33,575 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:33,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 22:48:33,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 22:48:33,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 22:48:33,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:48:33,576 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 22:48:34,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:34,369 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2021-11-20 22:48:34,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 22:48:34,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-11-20 22:48:34,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:34,370 INFO L225 Difference]: With dead ends: 51 [2021-11-20 22:48:34,371 INFO L226 Difference]: Without dead ends: 28 [2021-11-20 22:48:34,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-20 22:48:34,372 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 13 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:34,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 66 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 22:48:34,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-20 22:48:34,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-20 22:48:34,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.0) internal successors, (25), 25 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 22:48:34,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2021-11-20 22:48:34,376 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 23 [2021-11-20 22:48:34,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:34,376 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2021-11-20 22:48:34,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 22:48:34,377 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2021-11-20 22:48:34,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-20 22:48:34,377 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:34,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:48:34,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-20 22:48:34,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 22:48:34,597 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:48:34,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:34,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1963668792, now seen corresponding path program 1 times [2021-11-20 22:48:34,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 22:48:34,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852685650] [2021-11-20 22:48:34,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:34,598 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 22:48:34,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 22:48:34,599 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 22:48:34,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-20 22:48:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:35,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-20 22:48:35,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:48:37,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:48:37,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:48:40,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:48:40,897 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 22:48:40,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852685650] [2021-11-20 22:48:40,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852685650] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:40,898 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:48:40,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 22 [2021-11-20 22:48:40,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621164469] [2021-11-20 22:48:40,898 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:40,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-20 22:48:40,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 22:48:40,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-20 22:48:40,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2021-11-20 22:48:40,900 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand has 22 states, 22 states have (on average 2.090909090909091) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 22:48:43,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:43,146 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2021-11-20 22:48:43,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 22:48:43,147 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.090909090909091) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2021-11-20 22:48:43,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:43,147 INFO L225 Difference]: With dead ends: 28 [2021-11-20 22:48:43,147 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 22:48:43,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2021-11-20 22:48:43,149 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 20 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:43,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 199 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 82 Unchecked, 1.0s Time] [2021-11-20 22:48:43,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 22:48:43,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 22:48:43,150 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) [2021-11-20 22:48:43,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 22:48:43,150 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2021-11-20 22:48:43,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:43,151 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 22:48:43,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.090909090909091) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 22:48:43,151 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 22:48:43,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 22:48:43,153 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 22:48:43,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-20 22:48:43,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 22:48:43,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 22:48:44,751 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 59 77) no Hoare annotation was computed. [2021-11-20 22:48:44,751 INFO L858 garLoopResultBuilder]: For program point copysign_floatEXIT(lines 59 77) no Hoare annotation was computed. [2021-11-20 22:48:44,751 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 75) no Hoare annotation was computed. [2021-11-20 22:48:44,751 INFO L858 garLoopResultBuilder]: For program point L71-1(lines 59 77) no Hoare annotation was computed. [2021-11-20 22:48:44,751 INFO L858 garLoopResultBuilder]: For program point L71-2(lines 71 75) no Hoare annotation was computed. [2021-11-20 22:48:44,751 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2021-11-20 22:48:44,751 INFO L861 garLoopResultBuilder]: At program point L61-2(lines 61 65) the Hoare annotation is: true [2021-11-20 22:48:44,752 INFO L861 garLoopResultBuilder]: At program point copysign_floatENTRY(lines 59 77) the Hoare annotation is: true [2021-11-20 22:48:44,752 INFO L858 garLoopResultBuilder]: For program point copysign_floatFINAL(lines 59 77) no Hoare annotation was computed. [2021-11-20 22:48:44,752 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-11-20 22:48:44,752 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 517) no Hoare annotation was computed. [2021-11-20 22:48:44,752 INFO L858 garLoopResultBuilder]: For program point L510-2(lines 501 579) no Hoare annotation was computed. [2021-11-20 22:48:44,752 INFO L858 garLoopResultBuilder]: For program point __kernel_tanfFINAL(lines 501 579) no Hoare annotation was computed. [2021-11-20 22:48:44,752 INFO L858 garLoopResultBuilder]: For program point L519(lines 519 522) no Hoare annotation was computed. [2021-11-20 22:48:44,752 INFO L858 garLoopResultBuilder]: For program point L519-2(lines 519 522) no Hoare annotation was computed. [2021-11-20 22:48:44,752 INFO L858 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2021-11-20 22:48:44,753 INFO L858 garLoopResultBuilder]: For program point L515-2(line 515) no Hoare annotation was computed. [2021-11-20 22:48:44,753 INFO L858 garLoopResultBuilder]: For program point L511(lines 511 516) no Hoare annotation was computed. [2021-11-20 22:48:44,753 INFO L858 garLoopResultBuilder]: For program point __kernel_tanfEXIT(lines 501 579) no Hoare annotation was computed. [2021-11-20 22:48:44,753 INFO L861 garLoopResultBuilder]: At program point __kernel_tanfENTRY(lines 501 579) the Hoare annotation is: true [2021-11-20 22:48:44,753 INFO L858 garLoopResultBuilder]: For program point L512(lines 512 515) no Hoare annotation was computed. [2021-11-20 22:48:44,753 INFO L858 garLoopResultBuilder]: For program point L504-1(lines 504 508) no Hoare annotation was computed. [2021-11-20 22:48:44,753 INFO L854 garLoopResultBuilder]: At program point L504-2(lines 504 508) the Hoare annotation is: (and (= |__kernel_tanf_#in~x| __kernel_tanf_~x) (= __kernel_tanf_~iy |__kernel_tanf_#in~iy|)) [2021-11-20 22:48:44,753 INFO L858 garLoopResultBuilder]: For program point L504-3(lines 504 508) no Hoare annotation was computed. [2021-11-20 22:48:44,753 INFO L858 garLoopResultBuilder]: For program point L566-1(lines 566 570) no Hoare annotation was computed. [2021-11-20 22:48:44,753 INFO L854 garLoopResultBuilder]: At program point L566-2(lines 566 570) the Hoare annotation is: (exists ((__kernel_tanf_~hx~2 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __kernel_tanf_~hx~2) ((_ extract 30 23) __kernel_tanf_~hx~2) ((_ extract 22 0) __kernel_tanf_~hx~2)) |__kernel_tanf_#in~x|) (not (bvslt (bvand (_ bv2147483647 32) __kernel_tanf_~hx~2) (_ bv830472192 32))))) [2021-11-20 22:48:44,753 INFO L858 garLoopResultBuilder]: For program point L554-1(lines 554 558) no Hoare annotation was computed. [2021-11-20 22:48:44,753 INFO L854 garLoopResultBuilder]: At program point L554-2(lines 554 558) the Hoare annotation is: (exists ((__kernel_tanf_~hx~2 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __kernel_tanf_~hx~2) ((_ extract 30 23) __kernel_tanf_~hx~2) ((_ extract 22 0) __kernel_tanf_~hx~2)) |__kernel_tanf_#in~x|) (not (bvslt (bvand (_ bv2147483647 32) __kernel_tanf_~hx~2) (_ bv830472192 32))))) [2021-11-20 22:48:44,753 INFO L854 garLoopResultBuilder]: At program point L513(line 513) the Hoare annotation is: (and (= |__kernel_tanf_#in~x| __kernel_tanf_~x) (= __kernel_tanf_~iy |__kernel_tanf_#in~iy|) (not (= (_ bv1 32) |__kernel_tanf_#in~iy|))) [2021-11-20 22:48:44,754 INFO L858 garLoopResultBuilder]: For program point L513-1(line 513) no Hoare annotation was computed. [2021-11-20 22:48:44,754 INFO L858 garLoopResultBuilder]: For program point L542(lines 542 546) no Hoare annotation was computed. [2021-11-20 22:48:44,754 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 575) no Hoare annotation was computed. [2021-11-20 22:48:44,754 INFO L858 garLoopResultBuilder]: For program point L571-1(lines 549 578) no Hoare annotation was computed. [2021-11-20 22:48:44,754 INFO L858 garLoopResultBuilder]: For program point L571-2(lines 571 575) no Hoare annotation was computed. [2021-11-20 22:48:44,754 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 563) no Hoare annotation was computed. [2021-11-20 22:48:44,754 INFO L858 garLoopResultBuilder]: For program point L559-1(lines 549 578) no Hoare annotation was computed. [2021-11-20 22:48:44,754 INFO L858 garLoopResultBuilder]: For program point L559-2(lines 559 563) no Hoare annotation was computed. [2021-11-20 22:48:44,754 INFO L858 garLoopResultBuilder]: For program point L518-1(lines 518 527) no Hoare annotation was computed. [2021-11-20 22:48:44,754 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 578) no Hoare annotation was computed. [2021-11-20 22:48:44,754 INFO L858 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 134 147) no Hoare annotation was computed. [2021-11-20 22:48:44,754 INFO L858 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 134 147) no Hoare annotation was computed. [2021-11-20 22:48:44,754 INFO L861 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 134 147) the Hoare annotation is: true [2021-11-20 22:48:44,754 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 145) no Hoare annotation was computed. [2021-11-20 22:48:44,755 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 134 147) no Hoare annotation was computed. [2021-11-20 22:48:44,755 INFO L858 garLoopResultBuilder]: For program point L141-2(lines 141 145) no Hoare annotation was computed. [2021-11-20 22:48:44,755 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2021-11-20 22:48:44,755 INFO L861 garLoopResultBuilder]: At program point L136-2(lines 136 140) the Hoare annotation is: true [2021-11-20 22:48:44,755 INFO L854 garLoopResultBuilder]: At program point L267(line 267) the Hoare annotation is: false [2021-11-20 22:48:44,755 INFO L858 garLoopResultBuilder]: For program point L267-1(line 267) no Hoare annotation was computed. [2021-11-20 22:48:44,755 INFO L858 garLoopResultBuilder]: For program point L300-2(lines 300 301) no Hoare annotation was computed. [2021-11-20 22:48:44,755 INFO L854 garLoopResultBuilder]: At program point L300-3(lines 300 301) the Hoare annotation is: false [2021-11-20 22:48:44,755 INFO L858 garLoopResultBuilder]: For program point L300-4(lines 290 330) no Hoare annotation was computed. [2021-11-20 22:48:44,755 INFO L858 garLoopResultBuilder]: For program point L433(lines 433 452) no Hoare annotation was computed. [2021-11-20 22:48:44,755 INFO L858 garLoopResultBuilder]: For program point L433-1(lines 421 453) no Hoare annotation was computed. [2021-11-20 22:48:44,755 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 275) no Hoare annotation was computed. [2021-11-20 22:48:44,755 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 236) no Hoare annotation was computed. [2021-11-20 22:48:44,755 INFO L854 garLoopResultBuilder]: At program point L268-2(lines 259 276) the Hoare annotation is: false [2021-11-20 22:48:44,755 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 38) no Hoare annotation was computed. [2021-11-20 22:48:44,755 INFO L858 garLoopResultBuilder]: For program point L302-1(line 302) no Hoare annotation was computed. [2021-11-20 22:48:44,756 INFO L854 garLoopResultBuilder]: At program point L236(line 236) the Hoare annotation is: false [2021-11-20 22:48:44,756 INFO L858 garLoopResultBuilder]: For program point L236-1(line 236) no Hoare annotation was computed. [2021-11-20 22:48:44,756 INFO L861 garLoopResultBuilder]: At program point L633(lines 616 634) the Hoare annotation is: true [2021-11-20 22:48:44,756 INFO L854 garLoopResultBuilder]: At program point L600(line 600) the Hoare annotation is: false [2021-11-20 22:48:44,756 INFO L858 garLoopResultBuilder]: For program point L600-1(line 600) no Hoare annotation was computed. [2021-11-20 22:48:44,756 INFO L854 garLoopResultBuilder]: At program point L600-2(lines 581 602) the Hoare annotation is: (and (= |ULTIMATE.start_tan_float_~x#1| (_ +zero 8 24)) (= |ULTIMATE.start_tan_float_#res#1| (_ +zero 8 24)) (= (fp ((_ extract 31 31) |ULTIMATE.start_tan_float_~ix~6#1|) ((_ extract 30 23) |ULTIMATE.start_tan_float_~ix~6#1|) ((_ extract 22 0) |ULTIMATE.start_tan_float_~ix~6#1|)) (_ +zero 8 24))) [2021-11-20 22:48:44,756 INFO L858 garLoopResultBuilder]: For program point L171(lines 171 172) no Hoare annotation was computed. [2021-11-20 22:48:44,757 INFO L858 garLoopResultBuilder]: For program point L171-2(lines 171 172) no Hoare annotation was computed. [2021-11-20 22:48:44,757 INFO L858 garLoopResultBuilder]: For program point L39(lines 39 43) no Hoare annotation was computed. [2021-11-20 22:48:44,757 INFO L858 garLoopResultBuilder]: For program point L469-1(lines 469 473) no Hoare annotation was computed. [2021-11-20 22:48:44,757 INFO L854 garLoopResultBuilder]: At program point L469-2(lines 469 473) the Hoare annotation is: false [2021-11-20 22:48:44,757 INFO L858 garLoopResultBuilder]: For program point L469-3(lines 469 473) no Hoare annotation was computed. [2021-11-20 22:48:44,757 INFO L858 garLoopResultBuilder]: For program point L304-2(lines 304 305) no Hoare annotation was computed. [2021-11-20 22:48:44,757 INFO L858 garLoopResultBuilder]: For program point L205(lines 205 208) no Hoare annotation was computed. [2021-11-20 22:48:44,758 INFO L854 garLoopResultBuilder]: At program point L304-3(lines 304 305) the Hoare annotation is: false [2021-11-20 22:48:44,758 INFO L858 garLoopResultBuilder]: For program point L304-4(lines 290 330) no Hoare annotation was computed. [2021-11-20 22:48:44,758 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-11-20 22:48:44,758 INFO L858 garLoopResultBuilder]: For program point L40-2(lines 40 41) no Hoare annotation was computed. [2021-11-20 22:48:44,758 INFO L858 garLoopResultBuilder]: For program point L404(lines 404 411) no Hoare annotation was computed. [2021-11-20 22:48:44,758 INFO L858 garLoopResultBuilder]: For program point L404-2(lines 404 411) no Hoare annotation was computed. [2021-11-20 22:48:44,758 INFO L858 garLoopResultBuilder]: For program point L306-1(line 306) no Hoare annotation was computed. [2021-11-20 22:48:44,759 INFO L858 garLoopResultBuilder]: For program point L207(lines 207 208) no Hoare annotation was computed. [2021-11-20 22:48:44,759 INFO L858 garLoopResultBuilder]: For program point L240-1(lines 162 332) no Hoare annotation was computed. [2021-11-20 22:48:44,759 INFO L858 garLoopResultBuilder]: For program point L207-2(lines 162 332) no Hoare annotation was computed. [2021-11-20 22:48:44,759 INFO L858 garLoopResultBuilder]: For program point L439-1(lines 439 443) no Hoare annotation was computed. [2021-11-20 22:48:44,759 INFO L854 garLoopResultBuilder]: At program point L439-2(lines 439 443) the Hoare annotation is: false [2021-11-20 22:48:44,759 INFO L858 garLoopResultBuilder]: For program point L439-3(lines 439 443) no Hoare annotation was computed. [2021-11-20 22:48:44,759 INFO L858 garLoopResultBuilder]: For program point L308(line 308) no Hoare annotation was computed. [2021-11-20 22:48:44,760 INFO L858 garLoopResultBuilder]: For program point L242-2(lines 242 243) no Hoare annotation was computed. [2021-11-20 22:48:44,760 INFO L854 garLoopResultBuilder]: At program point L242-3(lines 242 243) the Hoare annotation is: false [2021-11-20 22:48:44,760 INFO L858 garLoopResultBuilder]: For program point L242-4(lines 240 257) no Hoare annotation was computed. [2021-11-20 22:48:44,760 INFO L858 garLoopResultBuilder]: For program point L474-2(lines 474 477) no Hoare annotation was computed. [2021-11-20 22:48:44,760 INFO L854 garLoopResultBuilder]: At program point L474-3(lines 474 477) the Hoare annotation is: false [2021-11-20 22:48:44,760 INFO L858 garLoopResultBuilder]: For program point L474-4(lines 474 477) no Hoare annotation was computed. [2021-11-20 22:48:44,760 INFO L858 garLoopResultBuilder]: For program point L309-2(lines 309 313) no Hoare annotation was computed. [2021-11-20 22:48:44,761 INFO L858 garLoopResultBuilder]: For program point L210(lines 162 332) no Hoare annotation was computed. [2021-11-20 22:48:44,761 INFO L854 garLoopResultBuilder]: At program point L309-3(lines 309 313) the Hoare annotation is: false [2021-11-20 22:48:44,761 INFO L858 garLoopResultBuilder]: For program point L309-4(lines 309 313) no Hoare annotation was computed. [2021-11-20 22:48:44,761 INFO L858 garLoopResultBuilder]: For program point L177-2(lines 177 178) no Hoare annotation was computed. [2021-11-20 22:48:44,761 INFO L854 garLoopResultBuilder]: At program point L177-3(lines 177 178) the Hoare annotation is: false [2021-11-20 22:48:44,761 INFO L858 garLoopResultBuilder]: For program point L177-4(lines 177 178) no Hoare annotation was computed. [2021-11-20 22:48:44,762 INFO L858 garLoopResultBuilder]: For program point L607-1(lines 607 611) no Hoare annotation was computed. [2021-11-20 22:48:44,762 INFO L854 garLoopResultBuilder]: At program point L607-2(lines 607 611) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_float_~x#1| (_ +zero 8 24)) |ULTIMATE.start_main_#t~short141#1| (= |ULTIMATE.start_tan_float_~x#1| (_ +zero 8 24)) (= |ULTIMATE.start_main_~res~0#1| (_ +zero 8 24)) (= |ULTIMATE.start_tan_float_#res#1| (_ +zero 8 24)) (= (fp ((_ extract 31 31) |ULTIMATE.start_tan_float_~ix~6#1|) ((_ extract 30 23) |ULTIMATE.start_tan_float_~ix~6#1|) ((_ extract 22 0) |ULTIMATE.start_tan_float_~ix~6#1|)) (_ +zero 8 24))) [2021-11-20 22:48:44,762 INFO L858 garLoopResultBuilder]: For program point L607-3(lines 607 611) no Hoare annotation was computed. [2021-11-20 22:48:44,762 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-11-20 22:48:44,762 INFO L858 garLoopResultBuilder]: For program point L178-2(line 178) no Hoare annotation was computed. [2021-11-20 22:48:44,762 INFO L858 garLoopResultBuilder]: For program point L46(lines 46 49) no Hoare annotation was computed. [2021-11-20 22:48:44,762 INFO L858 garLoopResultBuilder]: For program point L278(line 278) no Hoare annotation was computed. [2021-11-20 22:48:44,763 INFO L858 garLoopResultBuilder]: For program point L245-1(lines 245 246) no Hoare annotation was computed. [2021-11-20 22:48:44,763 INFO L858 garLoopResultBuilder]: For program point L245-3(lines 245 246) no Hoare annotation was computed. [2021-11-20 22:48:44,763 INFO L854 garLoopResultBuilder]: At program point L245-4(lines 245 246) the Hoare annotation is: false [2021-11-20 22:48:44,763 INFO L858 garLoopResultBuilder]: For program point L245-5(lines 245 246) no Hoare annotation was computed. [2021-11-20 22:48:44,763 INFO L858 garLoopResultBuilder]: For program point L279-2(lines 279 282) no Hoare annotation was computed. [2021-11-20 22:48:44,763 INFO L854 garLoopResultBuilder]: At program point L279-3(lines 279 282) the Hoare annotation is: false [2021-11-20 22:48:44,763 INFO L858 garLoopResultBuilder]: For program point L213-2(lines 213 222) no Hoare annotation was computed. [2021-11-20 22:48:44,763 INFO L858 garLoopResultBuilder]: For program point L279-4(lines 279 282) no Hoare annotation was computed. [2021-11-20 22:48:44,763 INFO L858 garLoopResultBuilder]: For program point L180-2(lines 180 184) no Hoare annotation was computed. [2021-11-20 22:48:44,763 INFO L854 garLoopResultBuilder]: At program point L213-3(lines 213 222) the Hoare annotation is: false [2021-11-20 22:48:44,764 INFO L854 garLoopResultBuilder]: At program point L180-3(lines 180 184) the Hoare annotation is: false [2021-11-20 22:48:44,764 INFO L858 garLoopResultBuilder]: For program point L213-4(lines 210 238) no Hoare annotation was computed. [2021-11-20 22:48:44,764 INFO L858 garLoopResultBuilder]: For program point L180-4(lines 180 184) no Hoare annotation was computed. [2021-11-20 22:48:44,764 INFO L858 garLoopResultBuilder]: For program point L445(lines 445 451) no Hoare annotation was computed. [2021-11-20 22:48:44,764 INFO L858 garLoopResultBuilder]: For program point L379-1(lines 379 383) no Hoare annotation was computed. [2021-11-20 22:48:44,764 INFO L854 garLoopResultBuilder]: At program point L379-2(lines 379 383) the Hoare annotation is: false [2021-11-20 22:48:44,765 INFO L858 garLoopResultBuilder]: For program point L379-3(lines 379 383) no Hoare annotation was computed. [2021-11-20 22:48:44,765 INFO L858 garLoopResultBuilder]: For program point L181-2(lines 181 182) no Hoare annotation was computed. [2021-11-20 22:48:44,765 INFO L854 garLoopResultBuilder]: At program point L181-3(lines 181 182) the Hoare annotation is: false [2021-11-20 22:48:44,765 INFO L858 garLoopResultBuilder]: For program point L181-4(lines 181 182) no Hoare annotation was computed. [2021-11-20 22:48:44,765 INFO L858 garLoopResultBuilder]: For program point L314-2(lines 314 318) no Hoare annotation was computed. [2021-11-20 22:48:44,765 INFO L858 garLoopResultBuilder]: For program point L215(lines 215 221) no Hoare annotation was computed. [2021-11-20 22:48:44,765 INFO L854 garLoopResultBuilder]: At program point L314-3(lines 314 318) the Hoare annotation is: false [2021-11-20 22:48:44,766 INFO L858 garLoopResultBuilder]: For program point L248-2(lines 248 253) no Hoare annotation was computed. [2021-11-20 22:48:44,766 INFO L858 garLoopResultBuilder]: For program point L314-4(lines 314 318) no Hoare annotation was computed. [2021-11-20 22:48:44,766 INFO L854 garLoopResultBuilder]: At program point L248-3(lines 248 253) the Hoare annotation is: false [2021-11-20 22:48:44,766 INFO L858 garLoopResultBuilder]: For program point L248-4(lines 248 253) no Hoare annotation was computed. [2021-11-20 22:48:44,766 INFO L858 garLoopResultBuilder]: For program point L480-1(lines 480 481) no Hoare annotation was computed. [2021-11-20 22:48:44,766 INFO L854 garLoopResultBuilder]: At program point L480-3(lines 480 481) the Hoare annotation is: false [2021-11-20 22:48:44,766 INFO L858 garLoopResultBuilder]: For program point L480-4(lines 480 481) no Hoare annotation was computed. [2021-11-20 22:48:44,766 INFO L858 garLoopResultBuilder]: For program point L216(lines 216 219) no Hoare annotation was computed. [2021-11-20 22:48:44,767 INFO L858 garLoopResultBuilder]: For program point L51(lines 51 55) no Hoare annotation was computed. [2021-11-20 22:48:44,767 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 16 57) no Hoare annotation was computed. [2021-11-20 22:48:44,767 INFO L858 garLoopResultBuilder]: For program point L51-2(lines 51 55) no Hoare annotation was computed. [2021-11-20 22:48:44,767 INFO L854 garLoopResultBuilder]: At program point L613(lines 604 614) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_float_~x#1| (_ +zero 8 24)) |ULTIMATE.start_main_#t~short141#1| (= |ULTIMATE.start___signbit_float_#res#1| (_ bv0 32)) (= |ULTIMATE.start_tan_float_~x#1| (_ +zero 8 24)) (= |ULTIMATE.start_main_~res~0#1| (_ +zero 8 24)) (= |ULTIMATE.start_tan_float_#res#1| (_ +zero 8 24)) (= (fp ((_ extract 31 31) |ULTIMATE.start___signbit_float_~w~2#1|) ((_ extract 30 23) |ULTIMATE.start___signbit_float_~w~2#1|) ((_ extract 22 0) |ULTIMATE.start___signbit_float_~w~2#1|)) (_ +zero 8 24)) (= (fp ((_ extract 31 31) |ULTIMATE.start_tan_float_~ix~6#1|) ((_ extract 30 23) |ULTIMATE.start_tan_float_~ix~6#1|) ((_ extract 22 0) |ULTIMATE.start_tan_float_~ix~6#1|)) (_ +zero 8 24))) [2021-11-20 22:48:44,767 INFO L858 garLoopResultBuilder]: For program point L415(lines 415 461) no Hoare annotation was computed. [2021-11-20 22:48:44,767 INFO L858 garLoopResultBuilder]: For program point L250-2(lines 250 251) no Hoare annotation was computed. [2021-11-20 22:48:44,768 INFO L854 garLoopResultBuilder]: At program point L250-3(lines 250 251) the Hoare annotation is: false [2021-11-20 22:48:44,768 INFO L858 garLoopResultBuilder]: For program point L250-4(lines 250 251) no Hoare annotation was computed. [2021-11-20 22:48:44,768 INFO L858 garLoopResultBuilder]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2021-11-20 22:48:44,768 INFO L854 garLoopResultBuilder]: At program point L19-2(lines 19 23) the Hoare annotation is: false [2021-11-20 22:48:44,768 INFO L858 garLoopResultBuilder]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2021-11-20 22:48:44,768 INFO L854 garLoopResultBuilder]: At program point L416(line 416) the Hoare annotation is: false [2021-11-20 22:48:44,768 INFO L858 garLoopResultBuilder]: For program point L416-1(line 416) no Hoare annotation was computed. [2021-11-20 22:48:44,768 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 22:48:44,769 INFO L858 garLoopResultBuilder]: For program point L284-2(lines 284 288) no Hoare annotation was computed. [2021-11-20 22:48:44,769 INFO L854 garLoopResultBuilder]: At program point L284-3(lines 284 288) the Hoare annotation is: false [2021-11-20 22:48:44,769 INFO L858 garLoopResultBuilder]: For program point L284-4(lines 284 288) no Hoare annotation was computed. [2021-11-20 22:48:44,769 INFO L858 garLoopResultBuilder]: For program point L483(lines 483 487) no Hoare annotation was computed. [2021-11-20 22:48:44,769 INFO L858 garLoopResultBuilder]: For program point L285-2(lines 285 286) no Hoare annotation was computed. [2021-11-20 22:48:44,769 INFO L854 garLoopResultBuilder]: At program point L285-3(lines 285 286) the Hoare annotation is: false [2021-11-20 22:48:44,769 INFO L858 garLoopResultBuilder]: For program point L285-4(lines 285 286) no Hoare annotation was computed. [2021-11-20 22:48:44,770 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 389) no Hoare annotation was computed. [2021-11-20 22:48:44,770 INFO L858 garLoopResultBuilder]: For program point L319-2(lines 319 320) no Hoare annotation was computed. [2021-11-20 22:48:44,770 INFO L854 garLoopResultBuilder]: At program point L319-3(lines 319 320) the Hoare annotation is: false [2021-11-20 22:48:44,770 INFO L858 garLoopResultBuilder]: For program point L319-4(lines 290 330) no Hoare annotation was computed. [2021-11-20 22:48:44,770 INFO L854 garLoopResultBuilder]: At program point L56(lines 16 57) the Hoare annotation is: false [2021-11-20 22:48:44,770 INFO L858 garLoopResultBuilder]: For program point L585-1(lines 585 589) no Hoare annotation was computed. [2021-11-20 22:48:44,770 INFO L854 garLoopResultBuilder]: At program point L585-2(lines 585 589) the Hoare annotation is: (= |ULTIMATE.start_tan_float_~x#1| (_ +zero 8 24)) [2021-11-20 22:48:44,771 INFO L858 garLoopResultBuilder]: For program point L585-3(lines 585 589) no Hoare annotation was computed. [2021-11-20 22:48:44,771 INFO L854 garLoopResultBuilder]: At program point L255(lines 162 332) the Hoare annotation is: false [2021-11-20 22:48:44,771 INFO L858 garLoopResultBuilder]: For program point L189-2(lines 189 193) no Hoare annotation was computed. [2021-11-20 22:48:44,771 INFO L854 garLoopResultBuilder]: At program point L189-3(lines 189 193) the Hoare annotation is: false [2021-11-20 22:48:44,771 INFO L854 garLoopResultBuilder]: At program point L189-4(lines 189 193) the Hoare annotation is: false [2021-11-20 22:48:44,771 INFO L858 garLoopResultBuilder]: For program point L421(line 421) no Hoare annotation was computed. [2021-11-20 22:48:44,771 INFO L858 garLoopResultBuilder]: For program point L421-2(lines 421 453) no Hoare annotation was computed. [2021-11-20 22:48:44,772 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 22:48:44,772 INFO L858 garLoopResultBuilder]: For program point L223-1(lines 210 238) no Hoare annotation was computed. [2021-11-20 22:48:44,772 INFO L854 garLoopResultBuilder]: At program point L488(lines 373 489) the Hoare annotation is: false [2021-11-20 22:48:44,772 INFO L858 garLoopResultBuilder]: For program point L455(lines 455 460) no Hoare annotation was computed. [2021-11-20 22:48:44,772 INFO L854 garLoopResultBuilder]: At program point L290(lines 290 330) the Hoare annotation is: false [2021-11-20 22:48:44,772 INFO L854 garLoopResultBuilder]: At program point L224(lines 224 231) the Hoare annotation is: false [2021-11-20 22:48:44,772 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 50) no Hoare annotation was computed. [2021-11-20 22:48:44,773 INFO L858 garLoopResultBuilder]: For program point L390(lines 390 414) no Hoare annotation was computed. [2021-11-20 22:48:44,773 INFO L858 garLoopResultBuilder]: For program point L291(line 291) no Hoare annotation was computed. [2021-11-20 22:48:44,773 INFO L858 garLoopResultBuilder]: For program point L225(line 225) no Hoare annotation was computed. [2021-11-20 22:48:44,773 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 44) no Hoare annotation was computed. [2021-11-20 22:48:44,773 INFO L858 garLoopResultBuilder]: For program point L391(lines 391 413) no Hoare annotation was computed. [2021-11-20 22:48:44,773 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 22:48:44,773 INFO L858 garLoopResultBuilder]: For program point L28(lines 28 34) no Hoare annotation was computed. [2021-11-20 22:48:44,773 INFO L858 garLoopResultBuilder]: For program point L293-2(lines 293 294) no Hoare annotation was computed. [2021-11-20 22:48:44,774 INFO L854 garLoopResultBuilder]: At program point L293-3(lines 293 294) the Hoare annotation is: false [2021-11-20 22:48:44,774 INFO L858 garLoopResultBuilder]: For program point L293-4(lines 290 330) no Hoare annotation was computed. [2021-11-20 22:48:44,774 INFO L858 garLoopResultBuilder]: For program point L29(lines 29 33) no Hoare annotation was computed. [2021-11-20 22:48:44,774 INFO L858 garLoopResultBuilder]: For program point L393(lines 393 400) no Hoare annotation was computed. [2021-11-20 22:48:44,774 INFO L858 garLoopResultBuilder]: For program point L393-2(lines 393 400) no Hoare annotation was computed. [2021-11-20 22:48:44,774 INFO L858 garLoopResultBuilder]: For program point L228(line 228) no Hoare annotation was computed. [2021-11-20 22:48:44,774 INFO L858 garLoopResultBuilder]: For program point L195(line 195) no Hoare annotation was computed. [2021-11-20 22:48:44,775 INFO L858 garLoopResultBuilder]: For program point L592(lines 592 601) no Hoare annotation was computed. [2021-11-20 22:48:44,775 INFO L858 garLoopResultBuilder]: For program point L427-1(lines 427 431) no Hoare annotation was computed. [2021-11-20 22:48:44,775 INFO L854 garLoopResultBuilder]: At program point L427-2(lines 427 431) the Hoare annotation is: false [2021-11-20 22:48:44,775 INFO L858 garLoopResultBuilder]: For program point L427-3(lines 427 431) no Hoare annotation was computed. [2021-11-20 22:48:44,775 INFO L858 garLoopResultBuilder]: For program point L295-1(line 295) no Hoare annotation was computed. [2021-11-20 22:48:44,775 INFO L858 garLoopResultBuilder]: For program point L262-1(lines 262 265) no Hoare annotation was computed. [2021-11-20 22:48:44,775 INFO L854 garLoopResultBuilder]: At program point L262-3(lines 262 265) the Hoare annotation is: false [2021-11-20 22:48:44,775 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-11-20 22:48:44,776 INFO L854 garLoopResultBuilder]: At program point L593(line 593) the Hoare annotation is: (and (= |ULTIMATE.start_tan_float_~x#1| (_ +zero 8 24)) (= (fp ((_ extract 31 31) |ULTIMATE.start_tan_float_~ix~6#1|) ((_ extract 30 23) |ULTIMATE.start_tan_float_~ix~6#1|) ((_ extract 22 0) |ULTIMATE.start_tan_float_~ix~6#1|)) (_ +zero 8 24))) [2021-11-20 22:48:44,776 INFO L858 garLoopResultBuilder]: For program point L593-1(line 593) no Hoare annotation was computed. [2021-11-20 22:48:44,776 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 22:48:44,776 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 629) no Hoare annotation was computed. [2021-11-20 22:48:44,776 INFO L858 garLoopResultBuilder]: For program point L297(line 297) no Hoare annotation was computed. [2021-11-20 22:48:44,776 INFO L858 garLoopResultBuilder]: For program point L297-2(line 297) no Hoare annotation was computed. [2021-11-20 22:48:44,777 INFO L858 garLoopResultBuilder]: For program point L628(line 628) no Hoare annotation was computed. [2021-11-20 22:48:44,777 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 601) no Hoare annotation was computed. [2021-11-20 22:48:44,777 INFO L858 garLoopResultBuilder]: For program point L628-2(lines 628 631) no Hoare annotation was computed. [2021-11-20 22:48:44,777 INFO L858 garLoopResultBuilder]: For program point L463(lines 463 466) no Hoare annotation was computed. [2021-11-20 22:48:44,777 INFO L854 garLoopResultBuilder]: At program point L331(lines 161 332) the Hoare annotation is: false [2021-11-20 22:48:44,777 INFO L858 garLoopResultBuilder]: For program point L298(line 298) no Hoare annotation was computed. [2021-11-20 22:48:44,777 INFO L858 garLoopResultBuilder]: For program point L629(line 629) no Hoare annotation was computed. [2021-11-20 22:48:44,777 INFO L858 garLoopResultBuilder]: For program point L200(lines 200 208) no Hoare annotation was computed. [2021-11-20 22:48:44,778 INFO L861 garLoopResultBuilder]: At program point L122(line 122) the Hoare annotation is: true [2021-11-20 22:48:44,778 INFO L858 garLoopResultBuilder]: For program point L122-1(line 122) no Hoare annotation was computed. [2021-11-20 22:48:44,778 INFO L858 garLoopResultBuilder]: For program point L110(lines 110 111) no Hoare annotation was computed. [2021-11-20 22:48:44,778 INFO L858 garLoopResultBuilder]: For program point L106(lines 106 107) no Hoare annotation was computed. [2021-11-20 22:48:44,778 INFO L858 garLoopResultBuilder]: For program point L98(lines 98 108) no Hoare annotation was computed. [2021-11-20 22:48:44,778 INFO L858 garLoopResultBuilder]: For program point L98-2(lines 98 108) no Hoare annotation was computed. [2021-11-20 22:48:44,778 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 95) no Hoare annotation was computed. [2021-11-20 22:48:44,778 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2021-11-20 22:48:44,778 INFO L861 garLoopResultBuilder]: At program point L127-2(lines 127 131) the Hoare annotation is: true [2021-11-20 22:48:44,778 INFO L858 garLoopResultBuilder]: For program point L127-3(lines 127 131) no Hoare annotation was computed. [2021-11-20 22:48:44,779 INFO L861 garLoopResultBuilder]: At program point L111(line 111) the Hoare annotation is: true [2021-11-20 22:48:44,779 INFO L858 garLoopResultBuilder]: For program point L111-1(line 111) no Hoare annotation was computed. [2021-11-20 22:48:44,779 INFO L858 garLoopResultBuilder]: For program point scalbn_floatFINAL(lines 83 133) no Hoare annotation was computed. [2021-11-20 22:48:44,779 INFO L861 garLoopResultBuilder]: At program point L124(line 124) the Hoare annotation is: true [2021-11-20 22:48:44,779 INFO L858 garLoopResultBuilder]: For program point L124-1(line 124) no Hoare annotation was computed. [2021-11-20 22:48:44,779 INFO L858 garLoopResultBuilder]: For program point L120(lines 120 125) no Hoare annotation was computed. [2021-11-20 22:48:44,779 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2021-11-20 22:48:44,779 INFO L861 garLoopResultBuilder]: At program point L87-2(lines 87 91) the Hoare annotation is: true [2021-11-20 22:48:44,779 INFO L858 garLoopResultBuilder]: For program point L87-3(lines 87 91) no Hoare annotation was computed. [2021-11-20 22:48:44,779 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 119) no Hoare annotation was computed. [2021-11-20 22:48:44,780 INFO L858 garLoopResultBuilder]: For program point scalbn_floatEXIT(lines 83 133) no Hoare annotation was computed. [2021-11-20 22:48:44,780 INFO L861 garLoopResultBuilder]: At program point scalbn_floatENTRY(lines 83 133) the Hoare annotation is: true [2021-11-20 22:48:44,780 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 100 104) no Hoare annotation was computed. [2021-11-20 22:48:44,780 INFO L861 garLoopResultBuilder]: At program point L100-2(lines 100 104) the Hoare annotation is: true [2021-11-20 22:48:44,780 INFO L858 garLoopResultBuilder]: For program point L100-3(lines 100 104) no Hoare annotation was computed. [2021-11-20 22:48:44,780 INFO L858 garLoopResultBuilder]: For program point L96(lines 96 97) no Hoare annotation was computed. [2021-11-20 22:48:44,780 INFO L858 garLoopResultBuilder]: For program point L121(lines 121 124) no Hoare annotation was computed. [2021-11-20 22:48:44,781 INFO L858 garLoopResultBuilder]: For program point L113-1(lines 113 117) no Hoare annotation was computed. [2021-11-20 22:48:44,781 INFO L861 garLoopResultBuilder]: At program point L113-2(lines 113 117) the Hoare annotation is: true [2021-11-20 22:48:44,781 INFO L858 garLoopResultBuilder]: For program point L113-3(lines 113 117) no Hoare annotation was computed. [2021-11-20 22:48:44,784 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:48:44,785 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 22:48:44,802 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:44,803 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:44,803 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:44,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:44,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:44,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:44,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:44,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:44,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:44,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:44,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:44,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:44,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:44,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:44,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:44,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:44,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:48:44 BoogieIcfgContainer [2021-11-20 22:48:44,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 22:48:44,808 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 22:48:44,808 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 22:48:44,808 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 22:48:44,808 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:51" (3/4) ... [2021-11-20 22:48:44,811 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 22:48:44,817 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2021-11-20 22:48:44,818 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_float [2021-11-20 22:48:44,818 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure scalbn_float [2021-11-20 22:48:44,818 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __kernel_tanf [2021-11-20 22:48:44,840 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2021-11-20 22:48:44,842 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2021-11-20 22:48:44,845 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-20 22:48:44,847 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 22:48:44,877 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x && iy == \old(iy) [2021-11-20 22:48:44,877 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2021-11-20 22:48:44,878 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((x == ~Pluszero~LONGDOUBLE() && aux-res == 0.0f && __signbit_float(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2021-11-20 22:48:44,878 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((x == ~Pluszero~LONGDOUBLE() && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == 0bv32) && x == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2021-11-20 22:48:44,880 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __kernel_tanf_~hx~2 : bv32 :: ~fp~LONGDOUBLE(__kernel_tanf_~hx~2[31:31], __kernel_tanf_~hx~2[30:23], __kernel_tanf_~hx~2[22:0]) == \old(x) && !~bvslt32(~bvand32(2147483647bv32, __kernel_tanf_~hx~2), 830472192bv32)) [2021-11-20 22:48:45,194 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-20 22:48:45,195 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 22:48:45,195 INFO L158 Benchmark]: Toolchain (without parser) took 84731.58ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 50.6MB in the beginning and 51.3MB in the end (delta: -674.0kB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2021-11-20 22:48:45,196 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 71.3MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 22:48:45,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 796.12ms. Allocated memory is still 71.3MB. Free memory was 50.3MB in the beginning and 37.9MB in the end (delta: 12.4MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2021-11-20 22:48:45,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 156.46ms. Allocated memory is still 71.3MB. Free memory was 37.9MB in the beginning and 30.8MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 22:48:45,197 INFO L158 Benchmark]: Boogie Preprocessor took 123.46ms. Allocated memory is still 71.3MB. Free memory was 30.8MB in the beginning and 46.5MB in the end (delta: -15.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 22:48:45,198 INFO L158 Benchmark]: RCFGBuilder took 30252.56ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 46.5MB in the beginning and 56.3MB in the end (delta: -9.8MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2021-11-20 22:48:45,198 INFO L158 Benchmark]: TraceAbstraction took 53009.13ms. Allocated memory is still 102.8MB. Free memory was 55.8MB in the beginning and 32.2MB in the end (delta: 23.5MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2021-11-20 22:48:45,199 INFO L158 Benchmark]: Witness Printer took 387.15ms. Allocated memory is still 102.8MB. Free memory was 32.2MB in the beginning and 51.3MB in the end (delta: -19.0MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2021-11-20 22:48:45,201 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 71.3MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 796.12ms. Allocated memory is still 71.3MB. Free memory was 50.3MB in the beginning and 37.9MB in the end (delta: 12.4MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 156.46ms. Allocated memory is still 71.3MB. Free memory was 37.9MB in the beginning and 30.8MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 123.46ms. Allocated memory is still 71.3MB. Free memory was 30.8MB in the beginning and 46.5MB in the end (delta: -15.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 30252.56ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 46.5MB in the beginning and 56.3MB in the end (delta: -9.8MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. * TraceAbstraction took 53009.13ms. Allocated memory is still 102.8MB. Free memory was 55.8MB in the beginning and 32.2MB in the end (delta: 23.5MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * Witness Printer took 387.15ms. Allocated memory is still 102.8MB. Free memory was 32.2MB in the beginning and 51.3MB in the end (delta: -19.0MB). Peak memory consumption was 6.8MB. 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[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] * 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: 629]: 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 5 procedures, 247 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 52.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 220 SdHoareTripleChecker+Valid, 18.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 214 mSDsluCounter, 1568 SdHoareTripleChecker+Invalid, 17.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 129 IncrementalHoareTripleChecker+Unchecked, 979 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 244 IncrementalHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 589 mSDtfsCounter, 244 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 280 GetRequests, 205 SyntacticMatches, 4 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 10.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=0, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 61 LocationsWithAnnotation, 150 PreInvPairs, 163 NumberOfFragments, 194 HoareAnnotationTreeSize, 150 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 61 FomulaSimplificationsInter, 54 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 10.9s SatisfiabilityAnalysisTime, 16.4s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 264 ConstructedInterpolants, 40 QuantifiedInterpolants, 1591 SizeOfPredicates, 35 NumberOfNonLiveVariables, 2729 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 469]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: ((((((x == ~Pluszero~LONGDOUBLE() && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == 0bv32) && x == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 581]: Loop Invariant Derived loop invariant: (x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 224]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: \old(x) == x && iy == \old(iy) - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 242]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 180]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 284]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 319]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 480]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 262]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 279]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 245]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 439]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 213]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: ((((x == ~Pluszero~LONGDOUBLE() && aux-res == 0.0f && __signbit_float(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 554]: Loop Invariant [2021-11-20 22:48:45,243 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:45,243 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:45,243 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:45,243 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:45,244 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:45,244 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:45,244 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:45,244 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] Derived loop invariant: (\exists __kernel_tanf_~hx~2 : bv32 :: ~fp~LONGDOUBLE(__kernel_tanf_~hx~2[31:31], __kernel_tanf_~hx~2[30:23], __kernel_tanf_~hx~2[22:0]) == \old(x) && !~bvslt32(~bvand32(2147483647bv32, __kernel_tanf_~hx~2), 830472192bv32)) - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 427]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 314]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 566]: Loop Invariant [2021-11-20 22:48:45,245 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:45,245 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:45,245 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:45,245 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:45,245 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:45,245 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:45,245 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-20 22:48:45,245 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] Derived loop invariant: (\exists __kernel_tanf_~hx~2 : bv32 :: ~fp~LONGDOUBLE(__kernel_tanf_~hx~2[31:31], __kernel_tanf_~hx~2[30:23], __kernel_tanf_~hx~2[22:0]) == \old(x) && !~bvslt32(~bvand32(2147483647bv32, __kernel_tanf_~hx~2), 830472192bv32)) - InvariantResult [Line: 177]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 373]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-20 22:48:45,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed3cbbfd-eec0-4f47-af74-7de1caa8eebf/bin/utaipan-TEXQjIfE4P/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