./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0680a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0680a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs --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 730fc5680cc282215ba09c8c5033f5501a3cd07518a7ba6db71fdfb0494257f0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:33:48,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:33:48,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:33:48,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:33:48,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:33:48,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:33:48,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:33:48,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:33:48,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:33:48,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:33:48,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:33:48,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:33:48,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:33:48,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:33:48,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:33:48,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:33:48,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:33:48,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:33:48,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:33:48,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:33:48,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:33:48,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:33:48,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:33:48,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:33:48,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:33:48,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:33:48,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:33:48,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:33:48,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:33:48,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:33:48,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:33:48,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:33:48,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:33:48,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:33:48,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:33:48,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:33:48,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:33:48,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:33:48,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:33:48,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:33:48,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:33:48,922 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:33:48,982 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:33:48,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:33:48,985 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:33:48,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:33:48,986 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:33:48,986 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:33:48,986 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:33:48,986 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:33:48,994 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:33:48,995 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:33:48,996 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:33:48,996 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:33:48,997 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:33:48,997 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:33:48,997 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:33:48,997 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:33:48,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:33:48,999 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:33:48,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:33:48,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:33:49,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:33:49,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:33:49,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:33:49,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:33:49,001 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:33:49,001 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:33:49,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:33:49,002 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:33:49,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:33:49,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:33:49,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:33:49,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:33:49,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:33:49,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:33:49,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:33:49,004 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:33:49,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:33:49,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:33:49,005 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:33:49,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:33:49,006 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_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 730fc5680cc282215ba09c8c5033f5501a3cd07518a7ba6db71fdfb0494257f0 [2021-11-19 14:33:49,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:33:49,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:33:49,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:33:49,362 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:33:49,363 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:33:49,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/float-newlib/float_req_bl_0680a.c [2021-11-19 14:33:49,451 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/data/e66273934/add1464d79ba427594021a4f910944bd/FLAGbd2c07da9 [2021-11-19 14:33:50,023 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:33:50,024 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/sv-benchmarks/c/float-newlib/float_req_bl_0680a.c [2021-11-19 14:33:50,041 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/data/e66273934/add1464d79ba427594021a4f910944bd/FLAGbd2c07da9 [2021-11-19 14:33:50,366 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/data/e66273934/add1464d79ba427594021a4f910944bd [2021-11-19 14:33:50,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:33:50,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:33:50,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:33:50,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:33:50,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:33:50,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:33:50" (1/1) ... [2021-11-19 14:33:50,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25488a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:50, skipping insertion in model container [2021-11-19 14:33:50,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:33:50" (1/1) ... [2021-11-19 14:33:50,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:33:50,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:33:50,735 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_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/sv-benchmarks/c/float-newlib/float_req_bl_0680a.c[5219,5232] [2021-11-19 14:33:50,739 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:33:50,751 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:33:50,814 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_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/sv-benchmarks/c/float-newlib/float_req_bl_0680a.c[5219,5232] [2021-11-19 14:33:50,815 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:33:50,849 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:33:50,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:50 WrapperNode [2021-11-19 14:33:50,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:33:50,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:33:50,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:33:50,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:33:50,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:50" (1/1) ... [2021-11-19 14:33:50,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:50" (1/1) ... [2021-11-19 14:33:50,928 INFO L137 Inliner]: procedures = 19, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 213 [2021-11-19 14:33:50,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:33:50,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:33:50,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:33:50,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:33:50,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:50" (1/1) ... [2021-11-19 14:33:50,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:50" (1/1) ... [2021-11-19 14:33:50,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:50" (1/1) ... [2021-11-19 14:33:50,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:50" (1/1) ... [2021-11-19 14:33:50,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:50" (1/1) ... [2021-11-19 14:33:51,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:50" (1/1) ... [2021-11-19 14:33:51,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:50" (1/1) ... [2021-11-19 14:33:51,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:33:51,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:33:51,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:33:51,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:33:51,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:50" (1/1) ... [2021-11-19 14:33:51,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:33:51,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:33:51,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:33:51,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:33:51,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:33:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 14:33:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:33:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-19 14:33:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 14:33:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-19 14:33:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-11-19 14:33:51,171 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-11-19 14:33:51,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:33:51,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:33:51,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 14:33:51,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-19 14:33:51,171 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2021-11-19 14:33:51,172 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2021-11-19 14:33:51,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:33:51,279 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:33:51,281 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:33:51,813 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:33:51,882 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:33:51,883 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-19 14:33:51,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:33:51 BoogieIcfgContainer [2021-11-19 14:33:51,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:33:51,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:33:51,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:33:51,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:33:51,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:33:50" (1/3) ... [2021-11-19 14:33:51,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af07fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:33:51, skipping insertion in model container [2021-11-19 14:33:51,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:50" (2/3) ... [2021-11-19 14:33:51,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af07fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:33:51, skipping insertion in model container [2021-11-19 14:33:51,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:33:51" (3/3) ... [2021-11-19 14:33:51,897 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0680a.c [2021-11-19 14:33:51,904 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:33:51,904 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:33:51,966 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:33:51,975 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 [2021-11-19 14:33:51,975 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:33:52,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 59 states have (on average 1.7118644067796611) internal successors, (101), 60 states have internal predecessors, (101), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-19 14:33:52,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-19 14:33:52,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:33:52,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:33:52,013 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:33:52,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:33:52,019 INFO L85 PathProgramCache]: Analyzing trace with hash 227677672, now seen corresponding path program 1 times [2021-11-19 14:33:52,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:33:52,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089991767] [2021-11-19 14:33:52,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:33:52,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:33:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:33:52,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:33:52,226 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:33:52,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089991767] [2021-11-19 14:33:52,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089991767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:33:52,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:33:52,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 14:33:52,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737989531] [2021-11-19 14:33:52,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:33:52,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:33:52,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:33:52,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:33:52,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:33:52,273 INFO L87 Difference]: Start difference. First operand has 67 states, 59 states have (on average 1.7118644067796611) internal successors, (101), 60 states have internal predecessors, (101), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) 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) [2021-11-19 14:33:52,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:33:52,342 INFO L93 Difference]: Finished difference Result 133 states and 221 transitions. [2021-11-19 14:33:52,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:33:52,345 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 [2021-11-19 14:33:52,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:33:52,355 INFO L225 Difference]: With dead ends: 133 [2021-11-19 14:33:52,355 INFO L226 Difference]: Without dead ends: 65 [2021-11-19 14:33:52,360 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 [2021-11-19 14:33:52,364 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:33:52,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:33:52,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-19 14:33:52,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-11-19 14:33:52,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 58 states have (on average 1.4482758620689655) internal successors, (84), 58 states have internal predecessors, (84), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-19 14:33:52,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 92 transitions. [2021-11-19 14:33:52,420 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 92 transitions. Word has length 9 [2021-11-19 14:33:52,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:33:52,420 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 92 transitions. [2021-11-19 14:33:52,421 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) [2021-11-19 14:33:52,421 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 92 transitions. [2021-11-19 14:33:52,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 14:33:52,422 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:33:52,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:33:52,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 14:33:52,423 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:33:52,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:33:52,424 INFO L85 PathProgramCache]: Analyzing trace with hash -216192111, now seen corresponding path program 1 times [2021-11-19 14:33:52,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:33:52,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336727083] [2021-11-19 14:33:52,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:33:52,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:33:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:33:52,514 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 14:33:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:33:52,724 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 14:33:52,724 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 14:33:52,727 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:33:52,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 14:33:52,737 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-19 14:33:52,740 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:33:52,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:33:52 BoogieIcfgContainer [2021-11-19 14:33:52,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:33:52,799 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:33:52,799 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:33:52,799 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:33:52,800 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:33:51" (3/4) ... [2021-11-19 14:33:52,803 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 14:33:52,804 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:33:52,805 INFO L158 Benchmark]: Toolchain (without parser) took 2433.77ms. Allocated memory was 83.9MB in the beginning and 113.2MB in the end (delta: 29.4MB). Free memory was 47.1MB in the beginning and 83.6MB in the end (delta: -36.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:33:52,806 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 63.7MB in the beginning and 63.6MB in the end (delta: 45.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:33:52,807 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.10ms. Allocated memory was 83.9MB in the beginning and 113.2MB in the end (delta: 29.4MB). Free memory was 46.9MB in the beginning and 85.0MB in the end (delta: -38.2MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2021-11-19 14:33:52,808 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.77ms. Allocated memory is still 113.2MB. Free memory was 85.0MB in the beginning and 82.7MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 14:33:52,808 INFO L158 Benchmark]: Boogie Preprocessor took 106.61ms. Allocated memory is still 113.2MB. Free memory was 82.7MB in the beginning and 80.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:33:52,809 INFO L158 Benchmark]: RCFGBuilder took 848.99ms. Allocated memory is still 113.2MB. Free memory was 80.3MB in the beginning and 84.2MB in the end (delta: -3.9MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2021-11-19 14:33:52,810 INFO L158 Benchmark]: TraceAbstraction took 909.56ms. Allocated memory is still 113.2MB. Free memory was 83.7MB in the beginning and 84.2MB in the end (delta: -446.9kB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-19 14:33:52,811 INFO L158 Benchmark]: Witness Printer took 4.99ms. Allocated memory is still 113.2MB. Free memory was 84.2MB in the beginning and 83.6MB in the end (delta: 542.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:33:52,821 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 63.7MB in the beginning and 63.6MB in the end (delta: 45.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 475.10ms. Allocated memory was 83.9MB in the beginning and 113.2MB in the end (delta: 29.4MB). Free memory was 46.9MB in the beginning and 85.0MB in the end (delta: -38.2MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.77ms. Allocated memory is still 113.2MB. Free memory was 85.0MB in the beginning and 82.7MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.61ms. Allocated memory is still 113.2MB. Free memory was 82.7MB in the beginning and 80.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 848.99ms. Allocated memory is still 113.2MB. Free memory was 80.3MB in the beginning and 84.2MB in the end (delta: -3.9MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * TraceAbstraction took 909.56ms. Allocated memory is still 113.2MB. Free memory was 83.7MB in the beginning and 84.2MB in the end (delta: -446.9kB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 4.99ms. Allocated memory is still 113.2MB. Free memory was 84.2MB in the beginning and 83.6MB in the end (delta: 542.1kB). Peak memory consumption was 2.1MB. 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: 228]: 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 227, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 135, overapproximation of someUnaryFLOAToperation at line 222, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L222] float x = -0.0f; [L223] float y = 0.0f; [L224] CALL, EXPR __ieee754_atan2f(y, x) [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=1000000000000000000000000000002, \old(y)=0, aT_atan={7:0}, atanhi_atan={9:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000002, y=0, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000002, \old(y)=0, aT_atan={7:0}, atanhi_atan={9:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000, hx=-2, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000002, y=0, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000002, \old(y)=0, aT_atan={7:0}, atanhi_atan={9:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000, hx=-2, hy=-1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000002, y=0, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [\old(x)=1000000000000000000000000000002, \old(y)=0, aT_atan={7:0}, atanhi_atan={9:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000, hx=-2, hy=-1, ix=2139095041, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000002, y=0, zero_atan2=0] [L224] RET, EXPR __ieee754_atan2f(y, x) [L224] float res = __ieee754_atan2f(y, x); [L227] COND TRUE res != pi VAL [aT_atan={7:0}, atanhi_atan={9:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000001, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000002, y=0, zero_atan2=0] [L228] reach_error() VAL [aT_atan={7:0}, atanhi_atan={9:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000001, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000002, y=0, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 81 mSDtfsCounter, 13 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=67occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 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 [2021-11-19 14:33:52,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/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_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0680a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs --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 730fc5680cc282215ba09c8c5033f5501a3cd07518a7ba6db71fdfb0494257f0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:33:55,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:33:55,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:33:55,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:33:55,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:33:55,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:33:55,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:33:55,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:33:55,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:33:55,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:33:55,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:33:55,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:33:55,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:33:55,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:33:55,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:33:55,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:33:55,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:33:55,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:33:55,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:33:55,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:33:55,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:33:55,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:33:55,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:33:55,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:33:55,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:33:55,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:33:55,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:33:55,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:33:55,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:33:55,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:33:55,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:33:55,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:33:55,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:33:55,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:33:55,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:33:55,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:33:55,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:33:55,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:33:55,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:33:55,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:33:55,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:33:55,820 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 14:33:55,878 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:33:55,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:33:55,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:33:55,881 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:33:55,881 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:33:55,881 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:33:55,882 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:33:55,882 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:33:55,882 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:33:55,882 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:33:55,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:33:55,885 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:33:55,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:33:55,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:33:55,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:33:55,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:33:55,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:33:55,887 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:33:55,887 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:33:55,888 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:33:55,888 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:33:55,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:33:55,888 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:33:55,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:33:55,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:33:55,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:33:55,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:33:55,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:33:55,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:33:55,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:33:55,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:33:55,891 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:33:55,891 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:33:55,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:33:55,892 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:33:55,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:33:55,892 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_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 730fc5680cc282215ba09c8c5033f5501a3cd07518a7ba6db71fdfb0494257f0 [2021-11-19 14:33:56,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:33:56,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:33:56,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:33:56,407 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:33:56,408 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:33:56,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/float-newlib/float_req_bl_0680a.c [2021-11-19 14:33:56,510 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/data/0f599e01e/c4cb3ce6588442dabe1e3293407cbc52/FLAG0dfd2fc89 [2021-11-19 14:33:57,151 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:33:57,152 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/sv-benchmarks/c/float-newlib/float_req_bl_0680a.c [2021-11-19 14:33:57,164 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/data/0f599e01e/c4cb3ce6588442dabe1e3293407cbc52/FLAG0dfd2fc89 [2021-11-19 14:33:57,498 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/data/0f599e01e/c4cb3ce6588442dabe1e3293407cbc52 [2021-11-19 14:33:57,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:33:57,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:33:57,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:33:57,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:33:57,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:33:57,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:33:57" (1/1) ... [2021-11-19 14:33:57,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5606d087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:57, skipping insertion in model container [2021-11-19 14:33:57,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:33:57" (1/1) ... [2021-11-19 14:33:57,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:33:57,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:33:58,019 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_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/sv-benchmarks/c/float-newlib/float_req_bl_0680a.c[5219,5232] [2021-11-19 14:33:58,026 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:33:58,064 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:33:58,162 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_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/sv-benchmarks/c/float-newlib/float_req_bl_0680a.c[5219,5232] [2021-11-19 14:33:58,163 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:33:58,192 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:33:58,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58 WrapperNode [2021-11-19 14:33:58,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:33:58,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:33:58,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:33:58,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:33:58,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2021-11-19 14:33:58,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2021-11-19 14:33:58,310 INFO L137 Inliner]: procedures = 22, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 214 [2021-11-19 14:33:58,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:33:58,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:33:58,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:33:58,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:33:58,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2021-11-19 14:33:58,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2021-11-19 14:33:58,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2021-11-19 14:33:58,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2021-11-19 14:33:58,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2021-11-19 14:33:58,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2021-11-19 14:33:58,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2021-11-19 14:33:58,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:33:58,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:33:58,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:33:58,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:33:58,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2021-11-19 14:33:58,427 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:33:58,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:33:58,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:33:58,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:33:58,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:33:58,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-19 14:33:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:33:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:33:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-19 14:33:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-11-19 14:33:58,541 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-11-19 14:33:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:33:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:33:58,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:33:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-19 14:33:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2021-11-19 14:33:58,543 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2021-11-19 14:33:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:33:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:33:58,746 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:33:58,748 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:34:12,874 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:34:12,883 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:34:12,883 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-19 14:34:12,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:34:12 BoogieIcfgContainer [2021-11-19 14:34:12,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:34:12,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:34:12,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:34:12,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:34:12,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:33:57" (1/3) ... [2021-11-19 14:34:12,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1baf55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:34:12, skipping insertion in model container [2021-11-19 14:34:12,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (2/3) ... [2021-11-19 14:34:12,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1baf55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:34:12, skipping insertion in model container [2021-11-19 14:34:12,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:34:12" (3/3) ... [2021-11-19 14:34:12,896 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0680a.c [2021-11-19 14:34:12,903 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:34:12,904 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:34:12,965 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:34:12,975 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 [2021-11-19 14:34:12,975 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:34:12,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 82 states have (on average 1.6585365853658536) internal successors, (136), 83 states have internal predecessors, (136), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-19 14:34:13,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-19 14:34:13,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:13,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:34:13,008 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:34:13,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:13,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1138107774, now seen corresponding path program 1 times [2021-11-19 14:34:13,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:13,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1943594390] [2021-11-19 14:34:13,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:13,047 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:13,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:13,054 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:13,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:34:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:14,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:34:14,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:14,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:34:14,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:14,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:34:14,824 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:14,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1943594390] [2021-11-19 14:34:14,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1943594390] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:14,825 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:14,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 14:34:14,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004173941] [2021-11-19 14:34:14,829 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:14,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:34:14,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:14,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:34:14,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:34:14,899 INFO L87 Difference]: Start difference. First operand has 90 states, 82 states have (on average 1.6585365853658536) internal successors, (136), 83 states have internal predecessors, (136), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) 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) [2021-11-19 14:34:14,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:14,962 INFO L93 Difference]: Finished difference Result 178 states and 290 transitions. [2021-11-19 14:34:14,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:34:14,965 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 [2021-11-19 14:34:14,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:14,978 INFO L225 Difference]: With dead ends: 178 [2021-11-19 14:34:14,978 INFO L226 Difference]: Without dead ends: 87 [2021-11-19 14:34:14,985 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 [2021-11-19 14:34:14,995 INFO L933 BasicCegarLoop]: 129 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, 129 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 [2021-11-19 14:34:14,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:34:15,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-19 14:34:15,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-11-19 14:34:15,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 80 states have (on average 1.475) internal successors, (118), 80 states have internal predecessors, (118), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-19 14:34:15,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 126 transitions. [2021-11-19 14:34:15,064 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 126 transitions. Word has length 10 [2021-11-19 14:34:15,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:15,065 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 126 transitions. [2021-11-19 14:34:15,065 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) [2021-11-19 14:34:15,066 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 126 transitions. [2021-11-19 14:34:15,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-19 14:34:15,067 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:15,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:34:15,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-19 14:34:15,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:15,287 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:34:15,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:15,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1466192473, now seen corresponding path program 1 times [2021-11-19 14:34:15,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:15,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167120511] [2021-11-19 14:34:15,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:15,290 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:15,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:15,298 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:15,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:34:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:16,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-19 14:34:16,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:16,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-19 14:34:17,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2021-11-19 14:34:17,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:34:17,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:19,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:34:19,790 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:19,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167120511] [2021-11-19 14:34:19,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167120511] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:19,791 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:19,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-19 14:34:19,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031436765] [2021-11-19 14:34:19,792 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:19,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:34:19,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:19,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:34:19,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:34:19,795 INFO L87 Difference]: Start difference. First operand 87 states and 126 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2021-11-19 14:34:20,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:20,528 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2021-11-19 14:34:20,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:34:20,534 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-19 14:34:20,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:20,537 INFO L225 Difference]: With dead ends: 91 [2021-11-19 14:34:20,537 INFO L226 Difference]: Without dead ends: 87 [2021-11-19 14:34:20,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:34:20,540 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 2 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:20,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 905 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 31 Unchecked, 0.6s Time] [2021-11-19 14:34:20,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-19 14:34:20,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-11-19 14:34:20,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 80 states have (on average 1.4625) internal successors, (117), 80 states have internal predecessors, (117), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-19 14:34:20,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 125 transitions. [2021-11-19 14:34:20,556 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 125 transitions. Word has length 12 [2021-11-19 14:34:20,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:20,557 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 125 transitions. [2021-11-19 14:34:20,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2021-11-19 14:34:20,558 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 125 transitions. [2021-11-19 14:34:20,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-19 14:34:20,559 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:20,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:34:20,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 14:34:20,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:20,767 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:34:20,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:20,768 INFO L85 PathProgramCache]: Analyzing trace with hash -369945613, now seen corresponding path program 1 times [2021-11-19 14:34:20,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:20,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904563533] [2021-11-19 14:34:20,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:20,769 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:20,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:20,770 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:20,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:34:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:21,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:34:21,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:22,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:34:22,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:23,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:34:23,202 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:23,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904563533] [2021-11-19 14:34:23,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904563533] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:23,203 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:23,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-19 14:34:23,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51087120] [2021-11-19 14:34:23,204 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:23,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 14:34:23,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:23,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 14:34:23,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:34:23,206 INFO L87 Difference]: Start difference. First operand 87 states and 125 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 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) [2021-11-19 14:34:23,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:23,843 INFO L93 Difference]: Finished difference Result 175 states and 254 transitions. [2021-11-19 14:34:23,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:34:23,844 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 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 17 [2021-11-19 14:34:23,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:23,846 INFO L225 Difference]: With dead ends: 175 [2021-11-19 14:34:23,847 INFO L226 Difference]: Without dead ends: 100 [2021-11-19 14:34:23,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:34:23,850 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 82 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:23,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 721 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 11 Unchecked, 0.5s Time] [2021-11-19 14:34:23,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-11-19 14:34:23,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 85. [2021-11-19 14:34:23,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 79 states have internal predecessors, (114), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 14:34:23,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2021-11-19 14:34:23,865 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 17 [2021-11-19 14:34:23,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:23,866 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2021-11-19 14:34:23,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 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) [2021-11-19 14:34:23,866 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2021-11-19 14:34:23,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-19 14:34:23,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:23,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:34:23,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:34:24,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:24,083 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:34:24,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:24,084 INFO L85 PathProgramCache]: Analyzing trace with hash -312687311, now seen corresponding path program 1 times [2021-11-19 14:34:24,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:24,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333352981] [2021-11-19 14:34:24,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:24,085 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:24,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:24,086 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:24,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:34:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:25,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 14:34:25,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:26,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:34:26,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:27,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:34:27,213 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:27,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333352981] [2021-11-19 14:34:27,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333352981] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:27,214 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:27,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-19 14:34:27,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177170230] [2021-11-19 14:34:27,215 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:27,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 14:34:27,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:27,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 14:34:27,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:34:27,217 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 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) [2021-11-19 14:34:27,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:27,822 INFO L93 Difference]: Finished difference Result 104 states and 145 transitions. [2021-11-19 14:34:27,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:34:27,824 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 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 17 [2021-11-19 14:34:27,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:27,826 INFO L225 Difference]: With dead ends: 104 [2021-11-19 14:34:27,826 INFO L226 Difference]: Without dead ends: 100 [2021-11-19 14:34:27,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:34:27,829 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 81 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:27,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 797 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 11 Unchecked, 0.4s Time] [2021-11-19 14:34:27,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-11-19 14:34:27,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 85. [2021-11-19 14:34:27,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.4303797468354431) internal successors, (113), 79 states have internal predecessors, (113), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 14:34:27,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 119 transitions. [2021-11-19 14:34:27,843 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 119 transitions. Word has length 17 [2021-11-19 14:34:27,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:27,843 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 119 transitions. [2021-11-19 14:34:27,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 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) [2021-11-19 14:34:27,844 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 119 transitions. [2021-11-19 14:34:27,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-19 14:34:27,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:27,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:34:27,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:34:28,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:28,067 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:34:28,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:28,067 INFO L85 PathProgramCache]: Analyzing trace with hash 2028116593, now seen corresponding path program 1 times [2021-11-19 14:34:28,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:28,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548603404] [2021-11-19 14:34:28,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:28,069 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:28,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:28,070 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:28,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:34:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:29,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:34:29,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:29,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:34:29,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:30,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:34:30,113 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:30,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548603404] [2021-11-19 14:34:30,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [548603404] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:30,113 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:30,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 14:34:30,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977614285] [2021-11-19 14:34:30,114 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:30,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:34:30,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:30,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:34:30,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:34:30,116 INFO L87 Difference]: Start difference. First operand 85 states and 119 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2021-11-19 14:34:30,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:30,732 INFO L93 Difference]: Finished difference Result 146 states and 206 transitions. [2021-11-19 14:34:30,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:34:30,734 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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 17 [2021-11-19 14:34:30,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:30,735 INFO L225 Difference]: With dead ends: 146 [2021-11-19 14:34:30,736 INFO L226 Difference]: Without dead ends: 78 [2021-11-19 14:34:30,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:34:30,738 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 155 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:30,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 320 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:34:30,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-19 14:34:30,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-11-19 14:34:30,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 72 states have (on average 1.3472222222222223) internal successors, (97), 72 states have internal predecessors, (97), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 14:34:30,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 103 transitions. [2021-11-19 14:34:30,762 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 103 transitions. Word has length 17 [2021-11-19 14:34:30,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:30,763 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 103 transitions. [2021-11-19 14:34:30,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2021-11-19 14:34:30,763 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 103 transitions. [2021-11-19 14:34:30,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-19 14:34:30,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:30,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:34:30,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:34:30,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:30,976 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:34:30,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:30,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1106145283, now seen corresponding path program 1 times [2021-11-19 14:34:30,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:30,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421520097] [2021-11-19 14:34:30,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:30,979 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:30,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:30,980 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:31,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:34:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:32,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:34:32,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:33,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:34:33,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:37,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:34:37,334 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:37,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421520097] [2021-11-19 14:34:37,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [421520097] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:37,334 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:37,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-19 14:34:37,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170646732] [2021-11-19 14:34:37,335 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:37,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:34:37,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:37,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:34:37,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:34:37,337 INFO L87 Difference]: Start difference. First operand 78 states and 103 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 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) [2021-11-19 14:34:41,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:34:44,128 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:34:47,331 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:34:49,527 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:34:51,530 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:34:53,613 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:34:55,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:34:57,865 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:34:59,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:35:01,598 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:35:03,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:35:03,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:03,770 INFO L93 Difference]: Finished difference Result 85 states and 109 transitions. [2021-11-19 14:35:03,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:35:03,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 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 18 [2021-11-19 14:35:03,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:03,818 INFO L225 Difference]: With dead ends: 85 [2021-11-19 14:35:03,818 INFO L226 Difference]: Without dead ends: 81 [2021-11-19 14:35:03,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:35:03,820 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 82 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:03,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 302 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 9 Unknown, 0 Unchecked, 25.2s Time] [2021-11-19 14:35:03,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-19 14:35:03,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2021-11-19 14:35:03,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 72 states have (on average 1.3194444444444444) internal successors, (95), 72 states have internal predecessors, (95), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 14:35:03,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions. [2021-11-19 14:35:03,838 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 18 [2021-11-19 14:35:03,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:03,839 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions. [2021-11-19 14:35:03,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 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) [2021-11-19 14:35:03,844 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2021-11-19 14:35:03,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-19 14:35:03,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:03,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:03,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:04,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:04,066 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:35:04,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:04,067 INFO L85 PathProgramCache]: Analyzing trace with hash 66610316, now seen corresponding path program 1 times [2021-11-19 14:35:04,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:04,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068608563] [2021-11-19 14:35:04,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:04,068 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:04,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:04,091 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:04,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:35:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:05,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-19 14:35:05,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:05,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-19 14:35:05,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2021-11-19 14:35:06,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:06,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:08,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:08,130 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:08,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068608563] [2021-11-19 14:35:08,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068608563] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:08,131 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:08,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-19 14:35:08,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669488995] [2021-11-19 14:35:08,131 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:08,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 14:35:08,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:08,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 14:35:08,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:35:08,134 INFO L87 Difference]: Start difference. First operand 78 states and 101 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 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) [2021-11-19 14:35:08,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:08,699 INFO L93 Difference]: Finished difference Result 78 states and 101 transitions. [2021-11-19 14:35:08,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:35:08,700 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 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 19 [2021-11-19 14:35:08,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:08,700 INFO L225 Difference]: With dead ends: 78 [2021-11-19 14:35:08,700 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 14:35:08,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:35:08,702 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:08,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 25 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 12 Unchecked, 0.1s Time] [2021-11-19 14:35:08,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 14:35:08,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 14:35:08,704 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) [2021-11-19 14:35:08,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 14:35:08,705 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-11-19 14:35:08,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:08,705 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 14:35:08,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 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) [2021-11-19 14:35:08,706 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 14:35:08,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 14:35:08,709 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:35:08,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:08,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:08,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 14:35:09,609 INFO L858 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 14 27) no Hoare annotation was computed. [2021-11-19 14:35:09,609 INFO L858 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 14 27) no Hoare annotation was computed. [2021-11-19 14:35:09,609 INFO L861 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 14 27) the Hoare annotation is: true [2021-11-19 14:35:09,609 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2021-11-19 14:35:09,609 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2021-11-19 14:35:09,609 INFO L858 garLoopResultBuilder]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2021-11-19 14:35:09,610 INFO L858 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2021-11-19 14:35:09,610 INFO L861 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: true [2021-11-19 14:35:09,610 INFO L854 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: false [2021-11-19 14:35:09,610 INFO L858 garLoopResultBuilder]: For program point L159(lines 159 168) no Hoare annotation was computed. [2021-11-19 14:35:09,610 INFO L854 garLoopResultBuilder]: At program point L192-1(line 192) the Hoare annotation is: false [2021-11-19 14:35:09,610 INFO L858 garLoopResultBuilder]: For program point L192-2(line 192) no Hoare annotation was computed. [2021-11-19 14:35:09,611 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-11-19 14:35:09,611 INFO L858 garLoopResultBuilder]: For program point L184-2(line 184) no Hoare annotation was computed. [2021-11-19 14:35:09,611 INFO L858 garLoopResultBuilder]: For program point L143(lines 143 151) no Hoare annotation was computed. [2021-11-19 14:35:09,611 INFO L858 garLoopResultBuilder]: For program point L193(lines 193 214) no Hoare annotation was computed. [2021-11-19 14:35:09,611 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-11-19 14:35:09,611 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 14:35:09,611 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-19 14:35:09,611 INFO L858 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2021-11-19 14:35:09,612 INFO L858 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-11-19 14:35:09,612 INFO L858 garLoopResultBuilder]: For program point L144(line 144) no Hoare annotation was computed. [2021-11-19 14:35:09,612 INFO L858 garLoopResultBuilder]: For program point L144-2(line 144) no Hoare annotation was computed. [2021-11-19 14:35:09,612 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 137) no Hoare annotation was computed. [2021-11-19 14:35:09,612 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 230) no Hoare annotation was computed. [2021-11-19 14:35:09,612 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-19 14:35:09,612 INFO L854 garLoopResultBuilder]: At program point L120(lines 120 215) the Hoare annotation is: (and (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (= (fp.add roundNearestTiesToEven ~pi~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000000000000000000000000000.0)))) |ULTIMATE.start___ieee754_atan2f_#res#1|) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 1000000000.0))) ~pi~0) (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|)) (_ +zero 8 24)) (= |ULTIMATE.start___ieee754_atan2f_~iy~0#1| (_ bv0 32)) (= (_ +zero 8 24) |ULTIMATE.start___ieee754_atan2f_~y#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-19 14:35:09,612 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-11-19 14:35:09,612 INFO L858 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2021-11-19 14:35:09,613 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 179) no Hoare annotation was computed. [2021-11-19 14:35:09,613 INFO L858 garLoopResultBuilder]: For program point L203-1(lines 196 208) no Hoare annotation was computed. [2021-11-19 14:35:09,613 INFO L858 garLoopResultBuilder]: For program point L203-2(lines 203 207) no Hoare annotation was computed. [2021-11-19 14:35:09,613 INFO L858 garLoopResultBuilder]: For program point L228(line 228) no Hoare annotation was computed. [2021-11-19 14:35:09,613 INFO L858 garLoopResultBuilder]: For program point L162(line 162) no Hoare annotation was computed. [2021-11-19 14:35:09,613 INFO L858 garLoopResultBuilder]: For program point L187(lines 187 192) no Hoare annotation was computed. [2021-11-19 14:35:09,614 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-19 14:35:09,614 INFO L858 garLoopResultBuilder]: For program point L171(line 171) no Hoare annotation was computed. [2021-11-19 14:35:09,614 INFO L858 garLoopResultBuilder]: For program point L138(lines 138 139) no Hoare annotation was computed. [2021-11-19 14:35:09,614 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-11-19 14:35:09,614 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2021-11-19 14:35:09,614 INFO L854 garLoopResultBuilder]: At program point L130-2(lines 130 134) the Hoare annotation is: (and (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 1000000000.0))) ~pi~0) (exists ((|v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (fp.neg (_ +zero 8 24))) (= |ULTIMATE.start___ieee754_atan2f_~hx~1#1| .cse0)))) (= (fp.neg (_ +zero 8 24)) |ULTIMATE.start___ieee754_atan2f_~x#1|) (exists ((|v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5|) (_ bv0 32)))) (and (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) (= (bvand (_ bv2147483647 32) .cse1) |ULTIMATE.start___ieee754_atan2f_~ix~2#1|)))) (= (_ +zero 8 24) |ULTIMATE.start___ieee754_atan2f_~y#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-19 14:35:09,614 INFO L858 garLoopResultBuilder]: For program point L130-3(lines 130 134) no Hoare annotation was computed. [2021-11-19 14:35:09,614 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-11-19 14:35:09,614 INFO L858 garLoopResultBuilder]: For program point L155-2(line 155) no Hoare annotation was computed. [2021-11-19 14:35:09,615 INFO L858 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2021-11-19 14:35:09,615 INFO L854 garLoopResultBuilder]: At program point L139(line 139) the Hoare annotation is: false [2021-11-19 14:35:09,615 INFO L858 garLoopResultBuilder]: For program point L139-1(line 139) no Hoare annotation was computed. [2021-11-19 14:35:09,615 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-11-19 14:35:09,615 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-19 14:35:09,615 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 192) no Hoare annotation was computed. [2021-11-19 14:35:09,615 INFO L858 garLoopResultBuilder]: For program point L189-2(lines 187 192) no Hoare annotation was computed. [2021-11-19 14:35:09,615 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 228) no Hoare annotation was computed. [2021-11-19 14:35:09,615 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-19 14:35:09,616 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 198 202) no Hoare annotation was computed. [2021-11-19 14:35:09,616 INFO L854 garLoopResultBuilder]: At program point L198-2(lines 198 202) the Hoare annotation is: false [2021-11-19 14:35:09,616 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 14:35:09,616 INFO L858 garLoopResultBuilder]: For program point L157(lines 157 181) no Hoare annotation was computed. [2021-11-19 14:35:09,616 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 120 215) no Hoare annotation was computed. [2021-11-19 14:35:09,616 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 124 128) no Hoare annotation was computed. [2021-11-19 14:35:09,616 INFO L854 garLoopResultBuilder]: At program point L124-2(lines 124 128) the Hoare annotation is: (and (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 1000000000.0))) ~pi~0) (= (fp.neg (_ +zero 8 24)) |ULTIMATE.start___ieee754_atan2f_~x#1|) (= (_ +zero 8 24) |ULTIMATE.start___ieee754_atan2f_~y#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-19 14:35:09,616 INFO L858 garLoopResultBuilder]: For program point L124-3(lines 124 128) no Hoare annotation was computed. [2021-11-19 14:35:09,616 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-11-19 14:35:09,616 INFO L861 garLoopResultBuilder]: At program point L232(lines 217 233) the Hoare annotation is: true [2021-11-19 14:35:09,617 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-11-19 14:35:09,617 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 180) no Hoare annotation was computed. [2021-11-19 14:35:09,617 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-11-19 14:35:09,617 INFO L858 garLoopResultBuilder]: For program point L142(lines 142 152) no Hoare annotation was computed. [2021-11-19 14:35:09,617 INFO L858 garLoopResultBuilder]: For program point L142-2(lines 120 215) no Hoare annotation was computed. [2021-11-19 14:35:09,617 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 65) no Hoare annotation was computed. [2021-11-19 14:35:09,618 INFO L861 garLoopResultBuilder]: At program point atan_floatENTRY(lines 53 115) the Hoare annotation is: true [2021-11-19 14:35:09,618 INFO L858 garLoopResultBuilder]: For program point atan_floatFINAL(lines 53 115) no Hoare annotation was computed. [2021-11-19 14:35:09,618 INFO L858 garLoopResultBuilder]: For program point L73(lines 73 74) no Hoare annotation was computed. [2021-11-19 14:35:09,618 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2021-11-19 14:35:09,618 INFO L861 garLoopResultBuilder]: At program point L57-2(lines 57 61) the Hoare annotation is: true [2021-11-19 14:35:09,618 INFO L858 garLoopResultBuilder]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2021-11-19 14:35:09,619 INFO L861 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: true [2021-11-19 14:35:09,619 INFO L858 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2021-11-19 14:35:09,619 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 69) no Hoare annotation was computed. [2021-11-19 14:35:09,619 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 95) no Hoare annotation was computed. [2021-11-19 14:35:09,619 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 96) no Hoare annotation was computed. [2021-11-19 14:35:09,619 INFO L858 garLoopResultBuilder]: For program point atan_floatEXIT(lines 53 115) no Hoare annotation was computed. [2021-11-19 14:35:09,619 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 70) no Hoare annotation was computed. [2021-11-19 14:35:09,619 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 94) no Hoare annotation was computed. [2021-11-19 14:35:09,619 INFO L858 garLoopResultBuilder]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2021-11-19 14:35:09,619 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-11-19 14:35:09,620 INFO L858 garLoopResultBuilder]: For program point L80(lines 80 86) no Hoare annotation was computed. [2021-11-19 14:35:09,620 INFO L858 garLoopResultBuilder]: For program point L113-2(line 113) no Hoare annotation was computed. [2021-11-19 14:35:09,620 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2021-11-19 14:35:09,620 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 75) no Hoare annotation was computed. [2021-11-19 14:35:09,620 INFO L858 garLoopResultBuilder]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2021-11-19 14:35:09,624 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:09,626 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:35:09,639 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,644 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,646 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,646 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,646 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,647 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,648 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,648 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,648 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,649 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,651 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] [2021-11-19 14:35:09,652 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] [2021-11-19 14:35:09,652 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] [2021-11-19 14:35:09,652 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] [2021-11-19 14:35:09,652 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-19 14:35:09,653 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-19 14:35:09,653 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-19 14:35:09,653 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-19 14:35:09,654 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,655 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] [2021-11-19 14:35:09,655 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] [2021-11-19 14:35:09,656 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] [2021-11-19 14:35:09,656 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] [2021-11-19 14:35:09,656 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-19 14:35:09,657 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-19 14:35:09,657 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-19 14:35:09,657 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-19 14:35:09,657 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:35:09 BoogieIcfgContainer [2021-11-19 14:35:09,659 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:35:09,660 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:35:09,660 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:35:09,660 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:35:09,661 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:34:12" (3/4) ... [2021-11-19 14:35:09,665 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 14:35:09,672 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2021-11-19 14:35:09,673 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2021-11-19 14:35:09,685 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-11-19 14:35:09,686 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-19 14:35:09,687 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-19 14:35:09,688 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 14:35:09,719 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18 : bv32 :: ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18][0bv32][22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && hx == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18][0bv32])) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][22:0]) && ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32]) == ix)) && ~Pluszero~LONGDOUBLE() == y) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-19 14:35:09,720 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp.add~FLOAT(~roundNearestTiesToEven, pi, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000))) == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && ~fp~LONGDOUBLE(hy[31:31], hy[30:23], hy[22:0]) == ~Pluszero~LONGDOUBLE()) && iy == 0bv32) && ~Pluszero~LONGDOUBLE() == y) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-19 14:35:09,772 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 14:35:09,772 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:35:09,773 INFO L158 Benchmark]: Toolchain (without parser) took 72267.21ms. Allocated memory was 54.5MB in the beginning and 79.7MB in the end (delta: 25.2MB). Free memory was 30.6MB in the beginning and 43.0MB in the end (delta: -12.4MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2021-11-19 14:35:09,774 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 54.5MB. Free memory is still 35.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:35:09,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 683.34ms. Allocated memory was 54.5MB in the beginning and 79.7MB in the end (delta: 25.2MB). Free memory was 30.5MB in the beginning and 56.7MB in the end (delta: -26.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 14:35:09,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.95ms. Allocated memory is still 79.7MB. Free memory was 56.7MB in the beginning and 54.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:35:09,775 INFO L158 Benchmark]: Boogie Preprocessor took 88.62ms. Allocated memory is still 79.7MB. Free memory was 54.4MB in the beginning and 51.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:35:09,776 INFO L158 Benchmark]: RCFGBuilder took 14485.16ms. Allocated memory is still 79.7MB. Free memory was 51.6MB in the beginning and 47.8MB in the end (delta: 3.8MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2021-11-19 14:35:09,776 INFO L158 Benchmark]: TraceAbstraction took 56771.17ms. Allocated memory is still 79.7MB. Free memory was 47.1MB in the beginning and 50.7MB in the end (delta: -3.6MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2021-11-19 14:35:09,777 INFO L158 Benchmark]: Witness Printer took 112.57ms. Allocated memory is still 79.7MB. Free memory was 50.7MB in the beginning and 43.0MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 14:35:09,779 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 54.5MB. Free memory is still 35.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 683.34ms. Allocated memory was 54.5MB in the beginning and 79.7MB in the end (delta: 25.2MB). Free memory was 30.5MB in the beginning and 56.7MB in the end (delta: -26.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.95ms. Allocated memory is still 79.7MB. Free memory was 56.7MB in the beginning and 54.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.62ms. Allocated memory is still 79.7MB. Free memory was 54.4MB in the beginning and 51.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 14485.16ms. Allocated memory is still 79.7MB. Free memory was 51.6MB in the beginning and 47.8MB in the end (delta: 3.8MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * TraceAbstraction took 56771.17ms. Allocated memory is still 79.7MB. Free memory was 47.1MB in the beginning and 50.7MB in the end (delta: -3.6MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * Witness Printer took 112.57ms. Allocated memory is still 79.7MB. Free memory was 50.7MB in the beginning and 43.0MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 228]: 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 3 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 29.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 410 SdHoareTripleChecker+Valid, 27.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 409 mSDsluCounter, 3199 SdHoareTripleChecker+Invalid, 26.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 65 IncrementalHoareTripleChecker+Unchecked, 2548 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 236 IncrementalHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 651 mSDtfsCounter, 236 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 159 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, InterpolantAutomatonStates: 41, 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, 33 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 42 PreInvPairs, 46 NumberOfFragments, 167 HoareAnnotationTreeSize, 42 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 7.8s SatisfiabilityAnalysisTime, 16.0s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 206 ConstructedInterpolants, 48 QuantifiedInterpolants, 2013 SizeOfPredicates, 49 NumberOfNonLiveVariables, 771 ConjunctsInSsa, 64 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: 198]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 124]: Loop Invariant [2021-11-19 14:35:09,793 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,794 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~Pluszero~LONGDOUBLE() == y) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 120]: Loop Invariant [2021-11-19 14:35:09,795 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,796 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,796 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,796 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,797 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,797 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,797 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,798 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp.add~FLOAT(~roundNearestTiesToEven, pi, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000))) == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && ~fp~LONGDOUBLE(hy[31:31], hy[30:23], hy[22:0]) == ~Pluszero~LONGDOUBLE()) && iy == 0bv32) && ~Pluszero~LONGDOUBLE() == y) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant [2021-11-19 14:35:09,799 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] [2021-11-19 14:35:09,800 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] [2021-11-19 14:35:09,800 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] [2021-11-19 14:35:09,800 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] [2021-11-19 14:35:09,800 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-19 14:35:09,801 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-19 14:35:09,801 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-19 14:35:09,801 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-19 14:35:09,801 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:35:09,803 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] [2021-11-19 14:35:09,803 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] [2021-11-19 14:35:09,803 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] [2021-11-19 14:35:09,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18,QUANTIFIED] [2021-11-19 14:35:09,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-19 14:35:09,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-19 14:35:09,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-19 14:35:09,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-19 14:35:09,805 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18 : bv32 :: ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18][0bv32][22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && hx == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_18][0bv32])) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][22:0]) && ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32]) == ix)) && ~Pluszero~LONGDOUBLE() == y) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-19 14:35:09,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b48e06-a8e2-46dc-bf64-a14d52f26e9d/bin/utaipan-UbGMyvGFUs/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