./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 86f4c48bd26ce0df301001b762b320097809bf71324092596b2b5e53d7dc1a20 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:07:26,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:07:26,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:07:26,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:07:26,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:07:26,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:07:26,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:07:26,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:07:26,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:07:26,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:07:26,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:07:26,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:07:26,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:07:26,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:07:26,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:07:26,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:07:26,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:07:26,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:07:26,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:07:26,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:07:26,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:07:26,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:07:26,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:07:26,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:07:26,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:07:26,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:07:26,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:07:26,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:07:26,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:07:26,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:07:26,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:07:26,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:07:26,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:07:26,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:07:26,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:07:26,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:07:26,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:07:26,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:07:26,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:07:26,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:07:26,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:07:26,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 20:07:26,927 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:07:26,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:07:26,927 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:07:26,928 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:07:26,928 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:07:26,928 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:07:26,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:07:26,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:07:26,929 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:07:26,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:07:26,930 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 20:07:26,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:07:26,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 20:07:26,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:07:26,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:07:26,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:07:26,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:07:26,931 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 20:07:26,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:07:26,931 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:07:26,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:07:26,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:07:26,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:07:26,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:07:26,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:07:26,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:07:26,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:07:26,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:07:26,933 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:07:26,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 20:07:26,933 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:07:26,933 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:07:26,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:07:26,934 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:07:26,934 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86f4c48bd26ce0df301001b762b320097809bf71324092596b2b5e53d7dc1a20 [2021-12-06 20:07:27,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:07:27,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:07:27,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:07:27,139 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:07:27,139 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:07:27,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2021-12-06 20:07:27,182 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/data/abe1582c5/a29fb1dd9c2e454693925bd01c974106/FLAGb2db6c3f1 [2021-12-06 20:07:27,546 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:07:27,547 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2021-12-06 20:07:27,552 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/data/abe1582c5/a29fb1dd9c2e454693925bd01c974106/FLAGb2db6c3f1 [2021-12-06 20:07:27,561 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/data/abe1582c5/a29fb1dd9c2e454693925bd01c974106 [2021-12-06 20:07:27,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:07:27,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:07:27,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:07:27,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:07:27,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:07:27,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:07:27" (1/1) ... [2021-12-06 20:07:27,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1949722a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:27, skipping insertion in model container [2021-12-06 20:07:27,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:07:27" (1/1) ... [2021-12-06 20:07:27,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:07:27,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:07:27,747 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_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c[3930,3943] [2021-12-06 20:07:27,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:07:27,759 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:07:27,793 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_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c[3930,3943] [2021-12-06 20:07:27,794 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:07:27,809 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:07:27,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:27 WrapperNode [2021-12-06 20:07:27,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:07:27,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:07:27,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:07:27,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:07:27,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:27" (1/1) ... [2021-12-06 20:07:27,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:27" (1/1) ... [2021-12-06 20:07:27,853 INFO L137 Inliner]: procedures = 19, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 210 [2021-12-06 20:07:27,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:07:27,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:07:27,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:07:27,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:07:27,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:27" (1/1) ... [2021-12-06 20:07:27,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:27" (1/1) ... [2021-12-06 20:07:27,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:27" (1/1) ... [2021-12-06 20:07:27,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:27" (1/1) ... [2021-12-06 20:07:27,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:27" (1/1) ... [2021-12-06 20:07:27,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:27" (1/1) ... [2021-12-06 20:07:27,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:27" (1/1) ... [2021-12-06 20:07:27,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:07:27,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:07:27,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:07:27,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:07:27,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:27" (1/1) ... [2021-12-06 20:07:27,898 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:07:27,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:07:27,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:07:27,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:07:27,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:07:27,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 20:07:27,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 20:07:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-06 20:07:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 20:07:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-06 20:07:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:07:27,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:07:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 20:07:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-06 20:07:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:07:28,012 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:07:28,013 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:07:28,207 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:07:28,211 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:07:28,211 INFO L301 CfgBuilder]: Removed 10 assume(true) statements. [2021-12-06 20:07:28,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:07:28 BoogieIcfgContainer [2021-12-06 20:07:28,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:07:28,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:07:28,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:07:28,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:07:28,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:07:27" (1/3) ... [2021-12-06 20:07:28,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785f6cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:07:28, skipping insertion in model container [2021-12-06 20:07:28,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:27" (2/3) ... [2021-12-06 20:07:28,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785f6cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:07:28, skipping insertion in model container [2021-12-06 20:07:28,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:07:28" (3/3) ... [2021-12-06 20:07:28,218 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620a.c [2021-12-06 20:07:28,222 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:07:28,222 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:07:28,256 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:07:28,261 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=PETRI_NET, 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 [2021-12-06 20:07:28,261 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 20:07:28,272 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 37 states have (on average 1.6486486486486487) internal successors, (61), 38 states have internal predecessors, (61), 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) [2021-12-06 20:07:28,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-06 20:07:28,276 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:07:28,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:07:28,277 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:07:28,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:07:28,281 INFO L85 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2021-12-06 20:07:28,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:07:28,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447772626] [2021-12-06 20:07:28,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:07:28,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:07:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:07:28,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:07:28,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:07:28,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447772626] [2021-12-06 20:07:28,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447772626] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:07:28,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:07:28,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:07:28,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834147190] [2021-12-06 20:07:28,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:07:28,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 20:07:28,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:07:28,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 20:07:28,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 20:07:28,442 INFO L87 Difference]: Start difference. First operand has 39 states, 37 states have (on average 1.6486486486486487) internal successors, (61), 38 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:28,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:07:28,466 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2021-12-06 20:07:28,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 20:07:28,468 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-06 20:07:28,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:07:28,477 INFO L225 Difference]: With dead ends: 76 [2021-12-06 20:07:28,477 INFO L226 Difference]: Without dead ends: 36 [2021-12-06 20:07:28,480 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 [2021-12-06 20:07:28,484 INFO L933 BasicCegarLoop]: 50 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, 50 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 [2021-12-06 20:07:28,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:07:28,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-12-06 20:07:28,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-12-06 20:07:28,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 35 states have internal predecessors, (47), 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) [2021-12-06 20:07:28,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2021-12-06 20:07:28,517 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2021-12-06 20:07:28,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:07:28,518 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2021-12-06 20:07:28,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:28,518 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2021-12-06 20:07:28,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 20:07:28,519 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:07:28,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:07:28,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 20:07:28,520 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:07:28,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:07:28,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2021-12-06 20:07:28,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:07:28,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413840369] [2021-12-06 20:07:28,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:07:28,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:07:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:07:28,594 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:07:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:07:28,658 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:07:28,659 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 20:07:28,660 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 20:07:28,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 20:07:28,666 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-06 20:07:28,668 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 20:07:28,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 08:07:28 BoogieIcfgContainer [2021-12-06 20:07:28,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 20:07:28,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:07:28,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:07:28,704 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:07:28,704 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:07:28" (3/4) ... [2021-12-06 20:07:28,707 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 20:07:28,707 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:07:28,708 INFO L158 Benchmark]: Toolchain (without parser) took 1143.71ms. Allocated memory was 104.9MB in the beginning and 130.0MB in the end (delta: 25.2MB). Free memory was 66.8MB in the beginning and 90.8MB in the end (delta: -24.0MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2021-12-06 20:07:28,709 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:07:28,709 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.06ms. Allocated memory is still 104.9MB. Free memory was 66.6MB in the beginning and 76.8MB in the end (delta: -10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 20:07:28,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.14ms. Allocated memory is still 104.9MB. Free memory was 76.8MB in the beginning and 74.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 20:07:28,710 INFO L158 Benchmark]: Boogie Preprocessor took 33.21ms. Allocated memory is still 104.9MB. Free memory was 74.3MB in the beginning and 72.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:07:28,711 INFO L158 Benchmark]: RCFGBuilder took 324.14ms. Allocated memory is still 104.9MB. Free memory was 72.2MB in the beginning and 57.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 20:07:28,712 INFO L158 Benchmark]: TraceAbstraction took 488.72ms. Allocated memory was 104.9MB in the beginning and 130.0MB in the end (delta: 25.2MB). Free memory was 57.1MB in the beginning and 90.8MB in the end (delta: -33.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:07:28,712 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 130.0MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:07:28,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.06ms. Allocated memory is still 104.9MB. Free memory was 66.6MB in the beginning and 76.8MB in the end (delta: -10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.14ms. Allocated memory is still 104.9MB. Free memory was 76.8MB in the beginning and 74.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.21ms. Allocated memory is still 104.9MB. Free memory was 74.3MB in the beginning and 72.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 324.14ms. Allocated memory is still 104.9MB. Free memory was 72.2MB in the beginning and 57.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 488.72ms. Allocated memory was 104.9MB in the beginning and 130.0MB in the end (delta: 25.2MB). Free memory was 57.1MB in the beginning and 90.8MB in the end (delta: -33.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 130.0MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 161]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 156, overapproximation of bitwiseAnd at line 75, overapproximation of someBinaryArithmeticDOUBLEoperation at line 84, overapproximation of someBinaryDOUBLEComparisonOperation at line 160. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L156] double x = -0.0; [L157] CALL, EXPR atan_double(x) [L67] double w, s1, s2, z; [L68] __int32_t ix, hx, id; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L71] ieee_double_shape_type gh_u; [L72] gh_u.value = (x) [L73] EXPR gh_u.parts.msw [L73] (hx) = gh_u.parts.msw [L75] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L76] COND TRUE ix >= 0x44100000 [L77] __uint32_t low; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, ix=2146435072, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L79] ieee_double_shape_type gl_u; [L80] gl_u.value = (x) [L81] EXPR gl_u.parts.lsw [L81] (low) = gl_u.parts.lsw [L83] COND TRUE ix > 0x7ff00000 || (ix == 0x7ff00000 && (low != 0)) [L84] return x + x; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, ix=2146435072, low=1, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L157] RET, EXPR atan_double(x) [L157] double res = atan_double(x); [L160] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, res == -0.0 && __signbit_double(res) == 1=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L160] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L161] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 50 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 50 mSDtfsCounter, 0 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=39occurred 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, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2021-12-06 20:07:28,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/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_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 86f4c48bd26ce0df301001b762b320097809bf71324092596b2b5e53d7dc1a20 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:07:30,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:07:30,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:07:30,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:07:30,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:07:30,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:07:30,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:07:30,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:07:30,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:07:30,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:07:30,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:07:30,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:07:30,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:07:30,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:07:30,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:07:30,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:07:30,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:07:30,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:07:30,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:07:30,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:07:30,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:07:30,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:07:30,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:07:30,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:07:30,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:07:30,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:07:30,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:07:30,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:07:30,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:07:30,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:07:30,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:07:30,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:07:30,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:07:30,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:07:30,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:07:30,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:07:30,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:07:30,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:07:30,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:07:30,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:07:30,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:07:30,361 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-06 20:07:30,381 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:07:30,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:07:30,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:07:30,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:07:30,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:07:30,382 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:07:30,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:07:30,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:07:30,383 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:07:30,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:07:30,383 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 20:07:30,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 20:07:30,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:07:30,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:07:30,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:07:30,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:07:30,384 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 20:07:30,384 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 20:07:30,384 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 20:07:30,384 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 20:07:30,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:07:30,385 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:07:30,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:07:30,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:07:30,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:07:30,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:07:30,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:07:30,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:07:30,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:07:30,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:07:30,386 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 20:07:30,386 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 20:07:30,386 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:07:30,386 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:07:30,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:07:30,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:07:30,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 20:07:30,386 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_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86f4c48bd26ce0df301001b762b320097809bf71324092596b2b5e53d7dc1a20 [2021-12-06 20:07:30,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:07:30,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:07:30,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:07:30,626 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:07:30,626 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:07:30,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2021-12-06 20:07:30,671 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/data/ec427e537/8f771ac752bb4ac9bdd13e062722aa75/FLAG1a51d389d [2021-12-06 20:07:31,086 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:07:31,086 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2021-12-06 20:07:31,094 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/data/ec427e537/8f771ac752bb4ac9bdd13e062722aa75/FLAG1a51d389d [2021-12-06 20:07:31,107 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/data/ec427e537/8f771ac752bb4ac9bdd13e062722aa75 [2021-12-06 20:07:31,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:07:31,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:07:31,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:07:31,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:07:31,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:07:31,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:07:31" (1/1) ... [2021-12-06 20:07:31,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e36f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:31, skipping insertion in model container [2021-12-06 20:07:31,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:07:31" (1/1) ... [2021-12-06 20:07:31,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:07:31,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:07:31,277 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_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c[3930,3943] [2021-12-06 20:07:31,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:07:31,290 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:07:31,320 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_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c[3930,3943] [2021-12-06 20:07:31,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:07:31,338 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:07:31,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:31 WrapperNode [2021-12-06 20:07:31,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:07:31,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:07:31,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:07:31,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:07:31,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:31" (1/1) ... [2021-12-06 20:07:31,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:31" (1/1) ... [2021-12-06 20:07:31,375 INFO L137 Inliner]: procedures = 22, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 210 [2021-12-06 20:07:31,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:07:31,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:07:31,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:07:31,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:07:31,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:31" (1/1) ... [2021-12-06 20:07:31,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:31" (1/1) ... [2021-12-06 20:07:31,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:31" (1/1) ... [2021-12-06 20:07:31,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:31" (1/1) ... [2021-12-06 20:07:31,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:31" (1/1) ... [2021-12-06 20:07:31,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:31" (1/1) ... [2021-12-06 20:07:31,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:31" (1/1) ... [2021-12-06 20:07:31,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:07:31,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:07:31,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:07:31,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:07:31,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:31" (1/1) ... [2021-12-06 20:07:31,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:07:31,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:07:31,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:07:31,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:07:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:07:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-06 20:07:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-06 20:07:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 20:07:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 20:07:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-12-06 20:07:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-06 20:07:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:07:31,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:07:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-06 20:07:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:07:31,540 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:07:31,546 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:07:46,303 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:07:46,308 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:07:46,309 INFO L301 CfgBuilder]: Removed 10 assume(true) statements. [2021-12-06 20:07:46,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:07:46 BoogieIcfgContainer [2021-12-06 20:07:46,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:07:46,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:07:46,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:07:46,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:07:46,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:07:31" (1/3) ... [2021-12-06 20:07:46,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16316a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:07:46, skipping insertion in model container [2021-12-06 20:07:46,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:07:31" (2/3) ... [2021-12-06 20:07:46,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16316a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:07:46, skipping insertion in model container [2021-12-06 20:07:46,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:07:46" (3/3) ... [2021-12-06 20:07:46,317 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620a.c [2021-12-06 20:07:46,321 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:07:46,321 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:07:46,360 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:07:46,365 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=PETRI_NET, 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 [2021-12-06 20:07:46,365 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 20:07:46,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 37 states have (on average 1.6486486486486487) internal successors, (61), 38 states have internal predecessors, (61), 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) [2021-12-06 20:07:46,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-06 20:07:46,379 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:07:46,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:07:46,380 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:07:46,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:07:46,384 INFO L85 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2021-12-06 20:07:46,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:07:46,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435033767] [2021-12-06 20:07:46,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:07:46,394 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:07:46,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:07:46,395 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:07:46,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 20:07:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:07:46,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-06 20:07:46,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:07:46,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:07:46,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:07:46,825 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:07:46,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435033767] [2021-12-06 20:07:46,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1435033767] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:07:46,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:07:46,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:07:46,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22105389] [2021-12-06 20:07:46,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:07:46,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 20:07:46,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:07:46,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 20:07:46,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 20:07:46,862 INFO L87 Difference]: Start difference. First operand has 39 states, 37 states have (on average 1.6486486486486487) internal successors, (61), 38 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:46,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:07:46,877 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2021-12-06 20:07:46,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 20:07:46,879 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-06 20:07:46,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:07:46,886 INFO L225 Difference]: With dead ends: 76 [2021-12-06 20:07:46,886 INFO L226 Difference]: Without dead ends: 36 [2021-12-06 20:07:46,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 20:07:46,891 INFO L933 BasicCegarLoop]: 50 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, 50 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 [2021-12-06 20:07:46,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:07:46,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-12-06 20:07:46,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-12-06 20:07:46,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 35 states have internal predecessors, (47), 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) [2021-12-06 20:07:46,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2021-12-06 20:07:46,915 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2021-12-06 20:07:46,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:07:46,916 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2021-12-06 20:07:46,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:46,916 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2021-12-06 20:07:46,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 20:07:46,916 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:07:46,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:07:46,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 20:07:47,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:07:47,118 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:07:47,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:07:47,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2021-12-06 20:07:47,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:07:47,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159644866] [2021-12-06 20:07:47,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:07:47,120 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:07:47,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:07:47,121 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:07:47,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 20:07:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:07:47,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 20:07:47,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:07:48,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:07:48,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:07:48,241 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:07:48,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159644866] [2021-12-06 20:07:48,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [159644866] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:07:48,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:07:48,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:07:48,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842933441] [2021-12-06 20:07:48,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:07:48,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:07:48,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:07:48,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:07:48,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:07:48,245 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-12-06 20:07:52,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:07:54,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:07:56,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:07:59,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:02,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:05,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:08,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:08,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:08:08,224 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2021-12-06 20:08:08,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:08:08,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2021-12-06 20:08:08,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:08:08,424 INFO L225 Difference]: With dead ends: 45 [2021-12-06 20:08:08,424 INFO L226 Difference]: Without dead ends: 32 [2021-12-06 20:08:08,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:08:08,426 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2021-12-06 20:08:08,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 120 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 7 Unknown, 17 Unchecked, 19.8s Time] [2021-12-06 20:08:08,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-12-06 20:08:08,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-12-06 20:08:08,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 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) [2021-12-06 20:08:08,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2021-12-06 20:08:08,431 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 13 [2021-12-06 20:08:08,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:08:08,431 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2021-12-06 20:08:08,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-12-06 20:08:08,432 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2021-12-06 20:08:08,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 20:08:08,432 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:08:08,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:08,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 20:08:08,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:08:08,634 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:08:08,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:08,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1440122883, now seen corresponding path program 1 times [2021-12-06 20:08:08,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:08:08,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877742942] [2021-12-06 20:08:08,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:08,640 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:08:08,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:08:08,643 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:08:08,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 20:08:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:08,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 20:08:08,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:08:09,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:09,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:08:09,866 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:08:09,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877742942] [2021-12-06 20:08:09,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877742942] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:09,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:09,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:08:09,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805201243] [2021-12-06 20:08:09,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:09,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:08:09,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:08:09,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:08:09,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:08:09,869 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-12-06 20:08:14,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:16,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:18,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:21,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:23,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:26,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:29,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:32,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:32,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:08:32,468 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2021-12-06 20:08:32,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:08:32,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2021-12-06 20:08:32,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:08:32,471 INFO L225 Difference]: With dead ends: 45 [2021-12-06 20:08:32,471 INFO L226 Difference]: Without dead ends: 42 [2021-12-06 20:08:32,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:08:32,473 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 33 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:08:32,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 108 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 8 Unknown, 0 Unchecked, 22.1s Time] [2021-12-06 20:08:32,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-12-06 20:08:32,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2021-12-06 20:08:32,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 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) [2021-12-06 20:08:32,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2021-12-06 20:08:32,481 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 13 [2021-12-06 20:08:32,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:08:32,481 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2021-12-06 20:08:32,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-12-06 20:08:32,481 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2021-12-06 20:08:32,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 20:08:32,482 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:08:32,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:32,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-06 20:08:32,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:08:32,685 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:08:32,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:32,686 INFO L85 PathProgramCache]: Analyzing trace with hash 893293957, now seen corresponding path program 1 times [2021-12-06 20:08:32,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:08:32,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863947084] [2021-12-06 20:08:32,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:32,689 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:08:32,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:08:32,692 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:08:32,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 20:08:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:36,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 20:08:36,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:08:37,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:37,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:08:37,589 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:08:37,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863947084] [2021-12-06 20:08:37,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863947084] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:37,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:37,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:08:37,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812338223] [2021-12-06 20:08:37,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:37,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:08:37,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:08:37,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:08:37,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:08:37,591 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-12-06 20:08:41,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:44,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:46,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:48,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:51,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:54,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:57,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:08:57,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:08:57,326 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2021-12-06 20:08:57,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:08:57,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2021-12-06 20:08:57,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:08:57,543 INFO L225 Difference]: With dead ends: 48 [2021-12-06 20:08:57,544 INFO L226 Difference]: Without dead ends: 34 [2021-12-06 20:08:57,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:08:57,545 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 2 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:08:57,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 109 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 7 Unknown, 16 Unchecked, 19.5s Time] [2021-12-06 20:08:57,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-12-06 20:08:57,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-12-06 20:08:57,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 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) [2021-12-06 20:08:57,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2021-12-06 20:08:57,550 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 15 [2021-12-06 20:08:57,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:08:57,550 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-12-06 20:08:57,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-12-06 20:08:57,550 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2021-12-06 20:08:57,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-06 20:08:57,551 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:08:57,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:57,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-06 20:08:57,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:08:57,753 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:08:57,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:57,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1041172097, now seen corresponding path program 1 times [2021-12-06 20:08:57,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:08:57,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289449634] [2021-12-06 20:08:57,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:57,757 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:08:57,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:08:57,759 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:08:57,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 20:09:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:01,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 20:09:01,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:09:04,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:09:04,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:09:04,199 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:09:04,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289449634] [2021-12-06 20:09:04,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289449634] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:04,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:04,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:09:04,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490211535] [2021-12-06 20:09:04,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:04,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:09:04,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:09:04,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:09:04,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:09:04,202 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:07,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:09:09,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:09:12,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:09:15,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:09:18,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:09:21,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:09:23,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:09:23,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:09:23,719 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2021-12-06 20:09:23,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:09:23,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-06 20:09:23,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:09:23,794 INFO L225 Difference]: With dead ends: 54 [2021-12-06 20:09:23,794 INFO L226 Difference]: Without dead ends: 40 [2021-12-06 20:09:23,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:09:23,795 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 40 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:09:23,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 44 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 7 Unknown, 0 Unchecked, 19.5s Time] [2021-12-06 20:09:23,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-12-06 20:09:23,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2021-12-06 20:09:23,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 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) [2021-12-06 20:09:23,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2021-12-06 20:09:23,800 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 16 [2021-12-06 20:09:23,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:09:23,800 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2021-12-06 20:09:23,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:23,801 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2021-12-06 20:09:23,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-06 20:09:23,801 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:09:23,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:23,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-06 20:09:24,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:09:24,003 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:09:24,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:24,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1453962584, now seen corresponding path program 1 times [2021-12-06 20:09:24,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:09:24,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906672519] [2021-12-06 20:09:24,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:24,007 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:09:24,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:09:24,009 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:09:24,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 20:09:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:24,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 20:09:24,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:09:27,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:09:27,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:09:27,442 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:09:27,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906672519] [2021-12-06 20:09:27,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1906672519] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:27,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:27,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 20:09:27,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020360945] [2021-12-06 20:09:27,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:27,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 20:09:27,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:09:27,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 20:09:27,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:09:27,445 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 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) [2021-12-06 20:09:32,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:09:35,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:09:38,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:09:41,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:09:44,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:09:47,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:09:49,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:09:51,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:09:52,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:09:52,258 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2021-12-06 20:09:52,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 20:09:52,260 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 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 [2021-12-06 20:09:52,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:09:52,261 INFO L225 Difference]: With dead ends: 40 [2021-12-06 20:09:52,262 INFO L226 Difference]: Without dead ends: 29 [2021-12-06 20:09:52,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-12-06 20:09:52,264 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 26 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2021-12-06 20:09:52,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 211 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 8 Unknown, 8 Unchecked, 22.6s Time] [2021-12-06 20:09:52,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-12-06 20:09:52,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-12-06 20:09:52,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 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) [2021-12-06 20:09:52,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2021-12-06 20:09:52,272 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 17 [2021-12-06 20:09:52,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:09:52,273 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2021-12-06 20:09:52,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 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) [2021-12-06 20:09:52,273 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2021-12-06 20:09:52,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-06 20:09:52,274 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:09:52,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:52,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 20:09:52,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:09:52,477 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:09:52,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:52,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1839755198, now seen corresponding path program 1 times [2021-12-06 20:09:52,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:09:52,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013244978] [2021-12-06 20:09:52,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:52,481 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:09:52,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:09:52,483 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:09:52,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-06 20:09:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:56,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 20:09:56,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:09:58,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:09:58,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:09:58,440 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:09:58,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013244978] [2021-12-06 20:09:58,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013244978] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:58,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:58,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:09:58,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019738923] [2021-12-06 20:09:58,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:58,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:09:58,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:09:58,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:09:58,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:09:58,442 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2021-12-06 20:09:58,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:09:58,734 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2021-12-06 20:09:58,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:09:58,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 21 [2021-12-06 20:09:58,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:09:58,735 INFO L225 Difference]: With dead ends: 29 [2021-12-06 20:09:58,735 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 20:09:58,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:09:58,737 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:09:58,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 7 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2021-12-06 20:09:58,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 20:09:58,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 20:09:58,739 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) [2021-12-06 20:09:58,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 20:09:58,739 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-12-06 20:09:58,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:09:58,739 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:09:58,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2021-12-06 20:09:58,740 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 20:09:58,740 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 20:09:58,743 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 20:09:58,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-12-06 20:09:58,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:09:58,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 20:10:00,386 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 88) no Hoare annotation was computed. [2021-12-06 20:10:00,386 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-12-06 20:10:00,386 INFO L858 garLoopResultBuilder]: For program point L160-2(lines 160 163) no Hoare annotation was computed. [2021-12-06 20:10:00,386 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 20:10:00,386 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 20:10:00,387 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2021-12-06 20:10:00,387 INFO L854 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2021-12-06 20:10:00,387 INFO L858 garLoopResultBuilder]: For program point L78-3(lines 76 89) no Hoare annotation was computed. [2021-12-06 20:10:00,387 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 70 74) no Hoare annotation was computed. [2021-12-06 20:10:00,387 INFO L854 garLoopResultBuilder]: At program point L70-2(lines 70 74) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= |ULTIMATE.start_atan_double_~x#1| (fp.neg (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2021-12-06 20:10:00,388 INFO L858 garLoopResultBuilder]: For program point L70-3(lines 70 74) no Hoare annotation was computed. [2021-12-06 20:10:00,388 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-12-06 20:10:00,388 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 133) no Hoare annotation was computed. [2021-12-06 20:10:00,388 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-12-06 20:10:00,388 INFO L854 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2021-12-06 20:10:00,388 INFO L854 garLoopResultBuilder]: At program point L145(lines 136 146) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short30#1| (= (_ bv1 32) |ULTIMATE.start___signbit_double_#res#1|)) [2021-12-06 20:10:00,389 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 139 143) no Hoare annotation was computed. [2021-12-06 20:10:00,389 INFO L854 garLoopResultBuilder]: At program point L139-2(lines 139 143) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= .cse0 |ULTIMATE.start_atan_double_#res#1|) |ULTIMATE.start_main_#t~short30#1| (= .cse0 |ULTIMATE.start___signbit_double_~x#1|) (= |ULTIMATE.start_atan_double_~x#1| .cse0) (= |ULTIMATE.start_main_~res~0#1| .cse0))) [2021-12-06 20:10:00,389 INFO L858 garLoopResultBuilder]: For program point L139-3(lines 139 143) no Hoare annotation was computed. [2021-12-06 20:10:00,389 INFO L858 garLoopResultBuilder]: For program point L98(lines 98 114) no Hoare annotation was computed. [2021-12-06 20:10:00,389 INFO L854 garLoopResultBuilder]: At program point L32(lines 19 33) the Hoare annotation is: false [2021-12-06 20:10:00,389 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 20:10:00,389 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 115) no Hoare annotation was computed. [2021-12-06 20:10:00,390 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 161) no Hoare annotation was computed. [2021-12-06 20:10:00,390 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 113) no Hoare annotation was computed. [2021-12-06 20:10:00,390 INFO L858 garLoopResultBuilder]: For program point L107-2(lines 90 115) no Hoare annotation was computed. [2021-12-06 20:10:00,390 INFO L861 garLoopResultBuilder]: At program point L165(lines 148 166) the Hoare annotation is: true [2021-12-06 20:10:00,390 INFO L858 garLoopResultBuilder]: For program point L132(line 132) no Hoare annotation was computed. [2021-12-06 20:10:00,390 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 105) no Hoare annotation was computed. [2021-12-06 20:10:00,391 INFO L858 garLoopResultBuilder]: For program point L132-2(line 132) no Hoare annotation was computed. [2021-12-06 20:10:00,391 INFO L854 garLoopResultBuilder]: At program point L132-3(lines 66 134) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= .cse0 |ULTIMATE.start_atan_double_#res#1|) (= |ULTIMATE.start_atan_double_~x#1| .cse0) (= currentRoundingMode roundNearestTiesToEven))) [2021-12-06 20:10:00,391 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 20:10:00,391 INFO L858 garLoopResultBuilder]: For program point L91(lines 91 94) no Hoare annotation was computed. [2021-12-06 20:10:00,391 INFO L858 garLoopResultBuilder]: For program point L91-2(lines 91 94) no Hoare annotation was computed. [2021-12-06 20:10:00,391 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 93) no Hoare annotation was computed. [2021-12-06 20:10:00,391 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 31) no Hoare annotation was computed. [2021-12-06 20:10:00,392 INFO L858 garLoopResultBuilder]: For program point L26-1(lines 19 33) no Hoare annotation was computed. [2021-12-06 20:10:00,392 INFO L858 garLoopResultBuilder]: For program point L26-2(lines 26 31) no Hoare annotation was computed. [2021-12-06 20:10:00,392 INFO L858 garLoopResultBuilder]: For program point L76(lines 76 89) no Hoare annotation was computed. [2021-12-06 20:10:00,396 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:10:00,398 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 20:10:00,407 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:10:00,411 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:10:00,412 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:10:00,412 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:10:00,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 08:10:00 BoogieIcfgContainer [2021-12-06 20:10:00,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 20:10:00,414 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:10:00,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:10:00,415 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:10:00,415 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:07:46" (3/4) ... [2021-12-06 20:10:00,418 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 20:10:00,432 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-06 20:10:00,433 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-12-06 20:10:00,433 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 20:10:00,434 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 20:10:00,455 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-12-06 20:10:00,456 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2021-12-06 20:10:00,456 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: aux-res == -0.0 && __signbit_double(res) == 1-aux && 1bv32 == \result [2021-12-06 20:10:00,483 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 20:10:00,483 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:10:00,484 INFO L158 Benchmark]: Toolchain (without parser) took 149373.18ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 38.4MB in the beginning and 37.5MB in the end (delta: 878.4kB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2021-12-06 20:10:00,484 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 60.8MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:10:00,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.83ms. Allocated memory is still 60.8MB. Free memory was 38.2MB in the beginning and 39.3MB in the end (delta: -1.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 20:10:00,485 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.07ms. Allocated memory is still 60.8MB. Free memory was 39.1MB in the beginning and 36.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 20:10:00,485 INFO L158 Benchmark]: Boogie Preprocessor took 30.15ms. Allocated memory is still 60.8MB. Free memory was 36.7MB in the beginning and 34.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:10:00,485 INFO L158 Benchmark]: RCFGBuilder took 14903.91ms. Allocated memory is still 60.8MB. Free memory was 34.4MB in the beginning and 29.0MB in the end (delta: 5.4MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2021-12-06 20:10:00,486 INFO L158 Benchmark]: TraceAbstraction took 134102.32ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 28.6MB in the beginning and 43.8MB in the end (delta: -15.3MB). Peak memory consumption was 143.5kB. Max. memory is 16.1GB. [2021-12-06 20:10:00,486 INFO L158 Benchmark]: Witness Printer took 68.61ms. Allocated memory is still 75.5MB. Free memory was 43.8MB in the beginning and 37.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 20:10:00,488 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 60.8MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.83ms. Allocated memory is still 60.8MB. Free memory was 38.2MB in the beginning and 39.3MB in the end (delta: -1.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.07ms. Allocated memory is still 60.8MB. Free memory was 39.1MB in the beginning and 36.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.15ms. Allocated memory is still 60.8MB. Free memory was 36.7MB in the beginning and 34.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 14903.91ms. Allocated memory is still 60.8MB. Free memory was 34.4MB in the beginning and 29.0MB in the end (delta: 5.4MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * TraceAbstraction took 134102.32ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 28.6MB in the beginning and 43.8MB in the end (delta: -15.3MB). Peak memory consumption was 143.5kB. Max. memory is 16.1GB. * Witness Printer took 68.61ms. Allocated memory is still 75.5MB. Free memory was 43.8MB in the beginning and 37.5MB in the end (delta: 6.3MB). 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 161]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 134.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 107.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 37 mSolverCounterUnknown, 105 SdHoareTripleChecker+Valid, 103.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 649 SdHoareTripleChecker+Invalid, 96.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 46 IncrementalHoareTripleChecker+Unchecked, 432 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 217 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 37, 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, 7 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 67 HoareAnnotationTreeSize, 8 FomulaSimplifications, 83 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 11.8s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 99 ConstructedInterpolants, 14 QuantifiedInterpolants, 518 SizeOfPredicates, 40 NumberOfNonLiveVariables, 889 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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: 70]: Loop Invariant [2021-12-06 20:10:00,495 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:10:00,495 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant [2021-12-06 20:10:00,496 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:10:00,496 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: aux-res == -0.0 && __signbit_double(res) == 1-aux && 1bv32 == \result - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: (((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) RESULT: Ultimate proved your program to be correct! [2021-12-06 20:10:00,700 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-12-06 20:10:00,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ea3457-96fa-4b00-84d6-28cd5b316dc8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE