./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0520.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0520.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt --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 42deff0778c8fe7ae9b58e73b085c6be9424416c ............................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0520.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt --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 42deff0778c8fe7ae9b58e73b085c6be9424416c ..................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:53:54,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:53:54,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:53:54,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:53:54,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:53:54,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:53:54,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:53:54,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:53:54,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:53:54,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:53:54,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:53:54,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:53:54,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:53:54,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:53:54,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:53:54,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:53:54,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:53:54,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:53:54,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:53:54,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:53:54,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:53:54,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:53:54,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:53:54,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:53:54,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:53:54,485 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:53:54,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:53:54,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:53:54,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:53:54,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:53:54,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:53:54,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:53:54,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:53:54,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:53:54,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:53:54,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:53:54,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:53:54,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:53:54,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:53:54,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:53:54,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:53:54,502 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:53:54,546 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:53:54,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:53:54,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:53:54,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:53:54,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:53:54,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:53:54,552 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:53:54,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:53:54,553 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:53:54,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:53:54,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:53:54,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:53:54,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:53:54,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:53:54,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:53:54,555 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:53:54,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:53:54,556 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:53:54,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:53:54,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:53:54,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:53:54,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:53:54,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:53:54,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:53:54,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:53:54,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:53:54,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:53:54,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:53:54,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:53:54,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:53:54,560 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_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42deff0778c8fe7ae9b58e73b085c6be9424416c [2021-10-13 00:53:54,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:53:54,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:53:54,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:53:54,851 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:53:54,852 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:53:54,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/float-newlib/double_req_bl_0520.c [2021-10-13 00:53:54,924 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/data/7464dbca2/66ac394f6bce4dfdbc9dba6c436d0e55/FLAG821da6c3e [2021-10-13 00:53:55,375 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:53:55,376 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/sv-benchmarks/c/float-newlib/double_req_bl_0520.c [2021-10-13 00:53:55,386 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/data/7464dbca2/66ac394f6bce4dfdbc9dba6c436d0e55/FLAG821da6c3e [2021-10-13 00:53:55,730 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/data/7464dbca2/66ac394f6bce4dfdbc9dba6c436d0e55 [2021-10-13 00:53:55,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:53:55,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:53:55,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:53:55,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:53:55,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:53:55,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:53:55" (1/1) ... [2021-10-13 00:53:55,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d65b73d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:55, skipping insertion in model container [2021-10-13 00:53:55,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:53:55" (1/1) ... [2021-10-13 00:53:55,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:53:55,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:53:56,194 WARN L228 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_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/sv-benchmarks/c/float-newlib/double_req_bl_0520.c[16106,16119] [2021-10-13 00:53:56,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:53:56,218 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:53:56,337 WARN L228 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_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/sv-benchmarks/c/float-newlib/double_req_bl_0520.c[16106,16119] [2021-10-13 00:53:56,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:53:56,364 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:53:56,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:56 WrapperNode [2021-10-13 00:53:56,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:53:56,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:53:56,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:53:56,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:53:56,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:56" (1/1) ... [2021-10-13 00:53:56,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:56" (1/1) ... [2021-10-13 00:53:56,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:53:56,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:53:56,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:53:56,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:53:56,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:56" (1/1) ... [2021-10-13 00:53:56,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:56" (1/1) ... [2021-10-13 00:53:56,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:56" (1/1) ... [2021-10-13 00:53:56,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:56" (1/1) ... [2021-10-13 00:53:56,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:56" (1/1) ... [2021-10-13 00:53:56,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:56" (1/1) ... [2021-10-13 00:53:56,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:56" (1/1) ... [2021-10-13 00:53:56,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:53:56,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:53:56,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:53:56,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:53:56,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:56" (1/1) ... [2021-10-13 00:53:56,748 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:53:56,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:53:56,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:53:56,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:53:56,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:53:56,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:53:56,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-13 00:53:56,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:53:56,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 00:53:56,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:53:56,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:53:56,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:53:56,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-13 00:53:56,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:53:58,541 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:53:58,541 INFO L299 CfgBuilder]: Removed 227 assume(true) statements. [2021-10-13 00:53:58,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:53:58 BoogieIcfgContainer [2021-10-13 00:53:58,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:53:58,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:53:58,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:53:58,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:53:58,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:53:55" (1/3) ... [2021-10-13 00:53:58,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c6033ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:53:58, skipping insertion in model container [2021-10-13 00:53:58,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:56" (2/3) ... [2021-10-13 00:53:58,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c6033ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:53:58, skipping insertion in model container [2021-10-13 00:53:58,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:53:58" (3/3) ... [2021-10-13 00:53:58,554 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0520.c [2021-10-13 00:53:58,560 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:53:58,560 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:53:58,615 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:53:58,621 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:53:58,621 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:53:58,648 INFO L276 IsEmpty]: Start isEmpty. Operand has 411 states, 409 states have (on average 1.726161369193154) internal successors, (706), 410 states have internal predecessors, (706), 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) [2021-10-13 00:53:58,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 00:53:58,654 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:53:58,654 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:53:58,655 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:53:58,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:53:58,660 INFO L82 PathProgramCache]: Analyzing trace with hash 571473099, now seen corresponding path program 1 times [2021-10-13 00:53:58,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:53:58,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706957731] [2021-10-13 00:53:58,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:53:58,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:53:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:53:58,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:53:58,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:53:58,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706957731] [2021-10-13 00:53:58,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706957731] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:53:58,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:53:58,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:53:58,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021940928] [2021-10-13 00:53:58,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 00:53:58,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:53:58,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:53:58,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:53:58,953 INFO L87 Difference]: Start difference. First operand has 411 states, 409 states have (on average 1.726161369193154) internal successors, (706), 410 states have internal predecessors, (706), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:53:59,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:53:59,022 INFO L93 Difference]: Finished difference Result 820 states and 1410 transitions. [2021-10-13 00:53:59,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:53:59,024 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-13 00:53:59,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:53:59,049 INFO L225 Difference]: With dead ends: 820 [2021-10-13 00:53:59,049 INFO L226 Difference]: Without dead ends: 408 [2021-10-13 00:53:59,054 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:53:59,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2021-10-13 00:53:59,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 408. [2021-10-13 00:53:59,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.3046683046683047) internal successors, (531), 407 states have internal predecessors, (531), 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) [2021-10-13 00:53:59,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 531 transitions. [2021-10-13 00:53:59,122 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 531 transitions. Word has length 10 [2021-10-13 00:53:59,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:53:59,123 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 531 transitions. [2021-10-13 00:53:59,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:53:59,123 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 531 transitions. [2021-10-13 00:53:59,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 00:53:59,124 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:53:59,124 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:53:59,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:53:59,125 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:53:59,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:53:59,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1763834098, now seen corresponding path program 1 times [2021-10-13 00:53:59,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:53:59,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123161483] [2021-10-13 00:53:59,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:53:59,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:53:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:53:59,360 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:53:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:53:59,557 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:53:59,557 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:53:59,560 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:53:59,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:53:59,569 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:53:59,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:53:59 BoogieIcfgContainer [2021-10-13 00:53:59,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:53:59,650 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:53:59,650 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:53:59,650 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:53:59,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:53:58" (3/4) ... [2021-10-13 00:53:59,655 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:53:59,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:53:59,657 INFO L168 Benchmark]: Toolchain (without parser) took 3922.12 ms. Allocated memory was 83.9 MB in the beginning and 134.2 MB in the end (delta: 50.3 MB). Free memory was 47.6 MB in the beginning and 68.7 MB in the end (delta: -21.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:53:59,658 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 83.9 MB. Free memory is still 65.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:53:59,659 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.49 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 47.5 MB in the beginning and 60.6 MB in the end (delta: -13.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:53:59,659 INFO L168 Benchmark]: Boogie Procedure Inliner took 157.97 ms. Allocated memory is still 100.7 MB. Free memory was 60.6 MB in the beginning and 50.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:53:59,660 INFO L168 Benchmark]: Boogie Preprocessor took 188.74 ms. Allocated memory is still 100.7 MB. Free memory was 50.8 MB in the beginning and 40.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:53:59,661 INFO L168 Benchmark]: RCFGBuilder took 1829.48 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 40.3 MB in the beginning and 82.5 MB in the end (delta: -42.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:53:59,662 INFO L168 Benchmark]: TraceAbstraction took 1103.26 ms. Allocated memory is still 134.2 MB. Free memory was 81.6 MB in the beginning and 68.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:53:59,663 INFO L168 Benchmark]: Witness Printer took 4.97 ms. Allocated memory is still 134.2 MB. Free memory is still 68.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:53:59,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 83.9 MB. Free memory is still 65.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 629.49 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 47.5 MB in the beginning and 60.6 MB in the end (delta: -13.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 157.97 ms. Allocated memory is still 100.7 MB. Free memory was 60.6 MB in the beginning and 50.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 188.74 ms. Allocated memory is still 100.7 MB. Free memory was 50.8 MB in the beginning and 40.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1829.48 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 40.3 MB in the beginning and 82.5 MB in the end (delta: -42.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1103.26 ms. Allocated memory is still 134.2 MB. Free memory was 81.6 MB in the beginning and 68.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.97 ms. Allocated memory is still 134.2 MB. Free memory is still 68.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 648]: 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 537, overapproximation of someBinaryArithmeticDOUBLEoperation at line 628, overapproximation of bitwiseAnd at line 623, overapproximation of someBinaryDOUBLEComparisonOperation at line 19. Possible FailurePath: [L21] static const double huge_floor = 1.0e300; [L107-L109] static const double two54_scalbn = 1.80143985094819840000e+16, twom54_scalbn = 5.55111512312578270212e-17, huge_scalbn = 1.0e+300, tiny_scalbn = 1.0e-300; [L178] static const int init_jk_krempio[] = {2, 3, 4, 6}; [L180-L185] static const double PIo2_krempio[] = { 1.57079625129699707031e+00, 7.54978941586159635335e-08, 5.39030252995776476554e-15, 3.28200341580791294123e-22, 1.27065575308067607349e-29, 1.22933308981111328932e-36, 2.73370053816464559624e-44, 2.16741683877804819444e-51, }; [L187-L189] static const double zero_krempio = 0.0, one_krempio = 1.0, two24_krempio = 1.67772160000000000000e+07, twon24_krempio = 5.96046447753906250000e-08; [L364-L375] static const __int32_t two_over_pi_rempio[] = { 0xA2F983, 0x6E4E44, 0x1529FC, 0x2757D1, 0xF534DD, 0xC0DB62, 0x95993C, 0x439041, 0xFE5163, 0xABDEBB, 0xC561B7, 0x246E3A, 0x424DD2, 0xE00649, 0x2EEA09, 0xD1921C, 0xFE1DEB, 0x1CB129, 0xA73EE8, 0x8235F5, 0x2EBB44, 0x84E99C, 0x7026B4, 0x5F7E41, 0x3991D6, 0x398353, 0x39F49C, 0x845F8B, 0xBDF928, 0x3B1FF8, 0x97FFDE, 0x05980F, 0xEF2F11, 0x8B5A0A, 0x6D1F6D, 0x367ECF, 0x27CB09, 0xB74F46, 0x3F669E, 0x5FEA2D, 0x7527BA, 0xC7EBE5, 0xF17B3D, 0x0739F7, 0x8A5292, 0xEA6BFB, 0x5FB11F, 0x8D5D08, 0x560330, 0x46FC7B, 0x6BABF0, 0xCFBC20, 0x9AF436, 0x1DA9E3, 0x91615E, 0xE61B08, 0x659985, 0x5F14A0, 0x68408D, 0xFFD880, 0x4D7327, 0x310606, 0x1556CA, 0x73A8C9, 0x60E27B, 0xC08C6B, }; [L377-L384] static const __int32_t npio2_hw_rempio[] = { 0x3FF921FB, 0x400921FB, 0x4012D97C, 0x401921FB, 0x401F6A7A, 0x4022D97C, 0x4025FDBB, 0x402921FB, 0x402C463A, 0x402F6A7A, 0x4031475C, 0x4032D97C, 0x40346B9C, 0x4035FDBB, 0x40378FDB, 0x403921FB, 0x403AB41B, 0x403C463A, 0x403DD85A, 0x403F6A7A, 0x40407E4C, 0x4041475C, 0x4042106C, 0x4042D97C, 0x4043A28C, 0x40446B9C, 0x404534AC, 0x4045FDBB, 0x4046C6CB, 0x40478FDB, 0x404858EB, 0x404921FB, }; [L386-L395] static const double zero_rempio = 0.00000000000000000000e+00, half_rempio = 5.00000000000000000000e-01, two24_rempio = 1.67772160000000000000e+07, invpio2_rempio = 6.36619772367581382433e-01, pio2_1_rempio = 1.57079632673412561417e+00, pio2_1t_rempio = 6.07710050650619224932e-11, pio2_2_rempio = 6.07710050630396597660e-11, pio2_2t_rempio = 2.02226624879595063154e-21, pio2_3_rempio = 2.02226624871116645580e-21, pio2_3t_rempio = 8.47842766036889956997e-32; [L528-L539] static const double one_ktan = 1.00000000000000000000e+00, pio4_ktan = 7.85398163397448278999e-01, pio4lo_ktan = 3.06161699786838301793e-17, T[] = { 3.33333333333334091986e-01, 1.33333333333201242699e-01, 5.39682539762260521377e-02, 2.18694882948595424599e-02, 8.86323982359930005737e-03, 3.59207910759131235356e-03, 1.45620945432529025516e-03, 5.88041240820264096874e-04, 2.46463134818469906812e-04, 7.81794442939557092300e-05, 7.14072491382608190305e-05, -1.85586374855275456654e-05, 2.59073051863633712884e-05, }; VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={13:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, npio2_hw_rempio={14:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={10:0}, pio4_ktan=785398163397448278999/1000000000000000000000, pio4lo_ktan=306161699786838301793/10000000000000000000000000000000000000, T={11:0}, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={9:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, zero_krempio=0, zero_rempio=0] [L643] double x = 0.0 / 0.0; [L614] double y[2], z = 0.0; [L615] __int32_t n, ix; VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={13:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, npio2_hw_rempio={14:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={10:0}, pio4_ktan=785398163397448278999/1000000000000000000000, pio4lo_ktan=306161699786838301793/10000000000000000000000000000000000000, T={11:0}, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={9:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, zero_krempio=0, zero_rempio=0] [L618] ieee_double_shape_type gh_u; [L619] gh_u.value = (x) [L620] EXPR gh_u.parts.msw [L620] (ix) = gh_u.parts.msw [L623] ix &= 0x7fffffff VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={13:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, npio2_hw_rempio={14:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={10:0}, pio4_ktan=785398163397448278999/1000000000000000000000, pio4lo_ktan=306161699786838301793/10000000000000000000000000000000000000, T={11:0}, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={9:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, zero_krempio=0, zero_rempio=0] [L624] COND FALSE !(ix <= 0x3fe921fb) VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={13:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, npio2_hw_rempio={14:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={10:0}, pio4_ktan=785398163397448278999/1000000000000000000000, pio4lo_ktan=306161699786838301793/10000000000000000000000000000000000000, T={11:0}, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={9:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, zero_krempio=0, zero_rempio=0] [L627] COND TRUE ix >= 0x7ff00000 [L628] return x - x; [L628] return x - x; VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={13:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, npio2_hw_rempio={14:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={10:0}, pio4_ktan=785398163397448278999/1000000000000000000000, pio4lo_ktan=306161699786838301793/10000000000000000000000000000000000000, T={11:0}, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={9:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, zero_krempio=0, zero_rempio=0] [L644] double res = tan_double(x); [L19] return x != x; VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={13:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, npio2_hw_rempio={14:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={10:0}, pio4_ktan=785398163397448278999/1000000000000000000000, pio4lo_ktan=306161699786838301793/10000000000000000000000000000000000000, T={11:0}, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={9:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, zero_krempio=0, zero_rempio=0] [L647] COND TRUE !isnan_double(res) [L648] reach_error() VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={13:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, npio2_hw_rempio={14:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={10:0}, pio4_ktan=785398163397448278999/1000000000000000000000, pio4lo_ktan=306161699786838301793/10000000000000000000000000000000000000, T={11:0}, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={9:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, zero_krempio=0, zero_rempio=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 411 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 954.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 12.5ms, AutomataDifference: 117.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 20.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 534 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=411occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 56.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.1ms SsaConstructionTime, 298.7ms SatisfiabilityAnalysisTime, 100.7ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2021-10-13 00:53:59,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:54:02,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:54:02,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:54:02,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:54:02,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:54:02,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:54:02,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:54:02,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:54:02,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:54:02,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:54:02,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:54:02,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:54:02,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:54:02,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:54:02,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:54:02,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:54:02,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:54:02,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:54:02,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:54:02,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:54:02,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:54:02,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:54:02,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:54:02,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:54:02,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:54:02,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:54:02,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:54:02,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:54:02,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:54:02,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:54:02,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:54:02,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:54:02,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:54:02,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:54:02,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:54:02,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:54:02,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:54:02,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:54:02,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:54:02,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:54:02,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:54:02,249 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-13 00:54:02,275 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:54:02,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:54:02,276 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:54:02,276 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:54:02,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:54:02,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:54:02,278 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:54:02,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:54:02,278 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:54:02,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:54:02,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:54:02,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:54:02,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:54:02,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:54:02,279 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:54:02,279 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:54:02,280 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:54:02,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:54:02,280 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:54:02,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:54:02,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:54:02,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:54:02,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:54:02,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:54:02,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:54:02,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:54:02,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:54:02,282 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:54:02,282 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:54:02,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:54:02,282 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:54:02,283 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:54:02,283 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_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42deff0778c8fe7ae9b58e73b085c6be9424416c [2021-10-13 00:54:02,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:54:02,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:54:02,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:54:02,747 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:54:02,748 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:54:02,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/float-newlib/double_req_bl_0520.c [2021-10-13 00:54:02,819 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/data/8e5e3e674/d51dcbd30e7748c182aadb93807f3294/FLAG7b8500662 [2021-10-13 00:54:03,421 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:54:03,422 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/sv-benchmarks/c/float-newlib/double_req_bl_0520.c [2021-10-13 00:54:03,443 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/data/8e5e3e674/d51dcbd30e7748c182aadb93807f3294/FLAG7b8500662 [2021-10-13 00:54:03,722 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/data/8e5e3e674/d51dcbd30e7748c182aadb93807f3294 [2021-10-13 00:54:03,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:54:03,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:54:03,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:54:03,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:54:03,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:54:03,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:54:03" (1/1) ... [2021-10-13 00:54:03,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25cbf583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:03, skipping insertion in model container [2021-10-13 00:54:03,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:54:03" (1/1) ... [2021-10-13 00:54:03,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:54:03,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:54:04,168 WARN L228 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_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/sv-benchmarks/c/float-newlib/double_req_bl_0520.c[16106,16119] [2021-10-13 00:54:04,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:54:04,210 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:54:04,344 WARN L228 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_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/sv-benchmarks/c/float-newlib/double_req_bl_0520.c[16106,16119] [2021-10-13 00:54:04,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:54:04,412 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:54:04,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:04 WrapperNode [2021-10-13 00:54:04,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:54:04,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:54:04,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:54:04,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:54:04,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:04" (1/1) ... [2021-10-13 00:54:04,472 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:04" (1/1) ... [2021-10-13 00:54:04,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:54:04,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:54:04,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:54:04,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:54:04,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:04" (1/1) ... [2021-10-13 00:54:04,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:04" (1/1) ... [2021-10-13 00:54:04,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:04" (1/1) ... [2021-10-13 00:54:04,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:04" (1/1) ... [2021-10-13 00:54:04,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:04" (1/1) ... [2021-10-13 00:54:04,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:04" (1/1) ... [2021-10-13 00:54:04,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:04" (1/1) ... [2021-10-13 00:54:04,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:54:04,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:54:04,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:54:04,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:54:04,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:04" (1/1) ... [2021-10-13 00:54:04,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:54:04,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:54:04,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:54:04,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:54:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-13 00:54:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-13 00:54:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 00:54:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-13 00:54:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:54:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-13 00:54:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 00:54:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:54:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:54:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 00:54:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:55:50,436 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:55:50,437 INFO L299 CfgBuilder]: Removed 227 assume(true) statements. [2021-10-13 00:55:50,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:55:50 BoogieIcfgContainer [2021-10-13 00:55:50,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:55:50,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:55:50,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:55:50,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:55:50,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:54:03" (1/3) ... [2021-10-13 00:55:50,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d29199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:55:50, skipping insertion in model container [2021-10-13 00:55:50,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:04" (2/3) ... [2021-10-13 00:55:50,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d29199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:55:50, skipping insertion in model container [2021-10-13 00:55:50,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:55:50" (3/3) ... [2021-10-13 00:55:50,450 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0520.c [2021-10-13 00:55:50,456 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:55:50,456 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:55:50,511 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:55:50,518 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:55:50,518 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:55:50,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 411 states, 409 states have (on average 1.726161369193154) internal successors, (706), 410 states have internal predecessors, (706), 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) [2021-10-13 00:55:50,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 00:55:50,565 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:55:50,565 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:55:50,566 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:55:50,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:55:50,576 INFO L82 PathProgramCache]: Analyzing trace with hash 571473099, now seen corresponding path program 1 times [2021-10-13 00:55:50,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:55:50,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425026146] [2021-10-13 00:55:50,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:55:50,595 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:55:50,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:55:50,598 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:55:50,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:55:50,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:50,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:55:50,942 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:577) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertConjunctsOfCodeBlocks.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertConjuncts(AnnotateAndAssertConjunctsOfCodeBlocks.java:135) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertNonCall(AnnotateAndAssertConjunctsOfCodeBlocks.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:101) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:312) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:211) ... 31 more [2021-10-13 00:55:50,950 INFO L168 Benchmark]: Toolchain (without parser) took 107216.89 ms. Allocated memory was 71.3 MB in the beginning and 92.3 MB in the end (delta: 21.0 MB). Free memory was 51.1 MB in the beginning and 56.3 MB in the end (delta: -5.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:50,951 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 71.3 MB. Free memory was 51.7 MB in the beginning and 51.7 MB in the end (delta: 54.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:55:50,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.44 ms. Allocated memory is still 71.3 MB. Free memory was 50.9 MB in the beginning and 33.5 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:50,953 INFO L168 Benchmark]: Boogie Procedure Inliner took 176.56 ms. Allocated memory is still 71.3 MB. Free memory was 33.5 MB in the beginning and 45.6 MB in the end (delta: -12.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:50,955 INFO L168 Benchmark]: Boogie Preprocessor took 141.56 ms. Allocated memory is still 71.3 MB. Free memory was 45.6 MB in the beginning and 35.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:50,960 INFO L168 Benchmark]: RCFGBuilder took 105706.91 ms. Allocated memory was 71.3 MB in the beginning and 92.3 MB in the end (delta: 21.0 MB). Free memory was 35.1 MB in the beginning and 43.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:50,962 INFO L168 Benchmark]: TraceAbstraction took 505.03 ms. Allocated memory is still 92.3 MB. Free memory was 43.7 MB in the beginning and 56.3 MB in the end (delta: -12.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:55:50,967 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 71.3 MB. Free memory was 51.7 MB in the beginning and 51.7 MB in the end (delta: 54.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 678.44 ms. Allocated memory is still 71.3 MB. Free memory was 50.9 MB in the beginning and 33.5 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 176.56 ms. Allocated memory is still 71.3 MB. Free memory was 33.5 MB in the beginning and 45.6 MB in the end (delta: -12.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 141.56 ms. Allocated memory is still 71.3 MB. Free memory was 45.6 MB in the beginning and 35.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 105706.91 ms. Allocated memory was 71.3 MB in the beginning and 92.3 MB in the end (delta: 21.0 MB). Free memory was 35.1 MB in the beginning and 43.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 505.03 ms. Allocated memory is still 92.3 MB. Free memory was 43.7 MB in the beginning and 56.3 MB in the end (delta: -12.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 00:55:51,197 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-13 00:55:51,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bacb385-6a4c-413e-8c9c-7b5b6849dda8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...