./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1131b.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_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/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_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1131b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/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_f5d01431-3a2c-44d0-baef-c3916d642868/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 4975ced40ee4a8ea85abb8c123fa258e6c012e9d ............................................................................................................................................................................................................................................................................................................................ 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_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/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_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1131b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/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_f5d01431-3a2c-44d0-baef-c3916d642868/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 4975ced40ee4a8ea85abb8c123fa258e6c012e9d ................................................................................................................................................................................................................................................................... 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 01:23:29,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:23:29,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:23:29,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:23:29,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:23:29,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:23:29,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:23:29,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:23:29,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:23:29,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:23:29,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:23:29,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:23:29,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:23:29,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:23:29,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:23:29,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:23:29,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:23:29,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:23:29,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:23:29,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:23:29,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:23:29,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:23:29,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:23:29,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:23:29,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:23:29,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:23:29,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:23:29,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:23:29,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:23:29,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:23:29,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:23:29,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:23:29,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:23:29,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:23:29,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:23:29,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:23:29,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:23:29,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:23:29,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:23:29,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:23:29,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:23:29,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 01:23:29,780 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:23:29,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:23:29,781 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:23:29,781 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:23:29,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:23:29,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:23:29,789 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:23:29,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:23:29,789 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:23:29,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:23:29,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:23:29,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:23:29,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 01:23:29,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 01:23:29,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 01:23:29,792 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:23:29,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:23:29,792 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:23:29,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 01:23:29,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:23:29,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:23:29,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 01:23:29,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:23:29,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:23:29,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 01:23:29,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 01:23:29,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:23:29,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 01:23:29,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 01:23:29,797 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:23:29,797 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_f5d01431-3a2c-44d0-baef-c3916d642868/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4975ced40ee4a8ea85abb8c123fa258e6c012e9d [2021-10-13 01:23:30,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:23:30,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:23:30,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:23:30,091 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:23:30,093 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:23:30,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/float-newlib/double_req_bl_1131b.c [2021-10-13 01:23:30,174 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/data/d83b8b2e6/79bdadcce6a54cd8872640a087f74b9d/FLAG99303f072 [2021-10-13 01:23:30,668 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:23:30,669 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/sv-benchmarks/c/float-newlib/double_req_bl_1131b.c [2021-10-13 01:23:30,684 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/data/d83b8b2e6/79bdadcce6a54cd8872640a087f74b9d/FLAG99303f072 [2021-10-13 01:23:31,022 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/data/d83b8b2e6/79bdadcce6a54cd8872640a087f74b9d [2021-10-13 01:23:31,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:23:31,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:23:31,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:23:31,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:23:31,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:23:31,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:23:31" (1/1) ... [2021-10-13 01:23:31,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@545a41ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:31, skipping insertion in model container [2021-10-13 01:23:31,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:23:31" (1/1) ... [2021-10-13 01:23:31,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:23:31,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:23:31,357 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_f5d01431-3a2c-44d0-baef-c3916d642868/sv-benchmarks/c/float-newlib/double_req_bl_1131b.c[4119,4132] [2021-10-13 01:23:31,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:23:31,369 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:23:31,420 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_f5d01431-3a2c-44d0-baef-c3916d642868/sv-benchmarks/c/float-newlib/double_req_bl_1131b.c[4119,4132] [2021-10-13 01:23:31,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:23:31,438 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:23:31,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:31 WrapperNode [2021-10-13 01:23:31,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:23:31,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:23:31,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:23:31,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:23:31,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:31" (1/1) ... [2021-10-13 01:23:31,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:31" (1/1) ... [2021-10-13 01:23:31,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:23:31,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:23:31,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:23:31,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:23:31,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:31" (1/1) ... [2021-10-13 01:23:31,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:31" (1/1) ... [2021-10-13 01:23:31,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:31" (1/1) ... [2021-10-13 01:23:31,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:31" (1/1) ... [2021-10-13 01:23:31,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:31" (1/1) ... [2021-10-13 01:23:31,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:31" (1/1) ... [2021-10-13 01:23:31,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:31" (1/1) ... [2021-10-13 01:23:31,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:23:31,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:23:31,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:23:31,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:23:31,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:31" (1/1) ... [2021-10-13 01:23:31,609 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:23:31,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:31,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:31,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 01:23:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:23:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:23:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 01:23:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-13 01:23:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 01:23:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:23:31,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:23:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 01:23:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-13 01:23:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 01:23:32,298 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:23:32,298 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-10-13 01:23:32,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:23:32 BoogieIcfgContainer [2021-10-13 01:23:32,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:23:32,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 01:23:32,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 01:23:32,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 01:23:32,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:23:31" (1/3) ... [2021-10-13 01:23:32,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b779511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:23:32, skipping insertion in model container [2021-10-13 01:23:32,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:31" (2/3) ... [2021-10-13 01:23:32,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b779511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:23:32, skipping insertion in model container [2021-10-13 01:23:32,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:23:32" (3/3) ... [2021-10-13 01:23:32,309 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2021-10-13 01:23:32,315 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 01:23:32,315 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 01:23:32,365 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 01:23:32,372 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 01:23:32,372 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 01:23:32,389 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 58 states have (on average 1.793103448275862) internal successors, (104), 59 states have internal predecessors, (104), 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 01:23:32,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 01:23:32,394 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:23:32,395 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:23:32,396 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:23:32,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:32,402 INFO L82 PathProgramCache]: Analyzing trace with hash 2036387893, now seen corresponding path program 1 times [2021-10-13 01:23:32,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:23:32,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738181292] [2021-10-13 01:23:32,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:23:32,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:23:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:23:32,565 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 01:23:32,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:23:32,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738181292] [2021-10-13 01:23:32,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738181292] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:23:32,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:23:32,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:23:32,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362784960] [2021-10-13 01:23:32,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 01:23:32,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:23:32,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 01:23:32,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 01:23:32,593 INFO L87 Difference]: Start difference. First operand has 60 states, 58 states have (on average 1.793103448275862) internal successors, (104), 59 states have internal predecessors, (104), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:23:32,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:23:32,616 INFO L93 Difference]: Finished difference Result 118 states and 206 transitions. [2021-10-13 01:23:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 01:23:32,617 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 01:23:32,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:23:32,628 INFO L225 Difference]: With dead ends: 118 [2021-10-13 01:23:32,628 INFO L226 Difference]: Without dead ends: 56 [2021-10-13 01:23:32,631 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 01:23:32,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-10-13 01:23:32,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-10-13 01:23:32,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.490909090909091) internal successors, (82), 55 states have internal predecessors, (82), 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 01:23:32,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 82 transitions. [2021-10-13 01:23:32,673 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 82 transitions. Word has length 13 [2021-10-13 01:23:32,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:23:32,674 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 82 transitions. [2021-10-13 01:23:32,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:23:32,675 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 82 transitions. [2021-10-13 01:23:32,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 01:23:32,676 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:23:32,676 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:23:32,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 01:23:32,677 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:23:32,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:32,678 INFO L82 PathProgramCache]: Analyzing trace with hash -794890891, now seen corresponding path program 1 times [2021-10-13 01:23:32,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:23:32,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769367244] [2021-10-13 01:23:32,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:23:32,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:23:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:32,818 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:23:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:32,986 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:23:32,987 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 01:23:32,994 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:23:32,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 01:23:33,004 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 01:23:33,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:23:33 BoogieIcfgContainer [2021-10-13 01:23:33,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 01:23:33,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:23:33,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:23:33,068 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:23:33,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:23:32" (3/4) ... [2021-10-13 01:23:33,072 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 01:23:33,072 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:23:33,075 INFO L168 Benchmark]: Toolchain (without parser) took 2046.27 ms. Allocated memory is still 109.1 MB. Free memory was 75.3 MB in the beginning and 74.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:23:33,076 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory was 55.0 MB in the beginning and 55.0 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:23:33,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.35 ms. Allocated memory is still 109.1 MB. Free memory was 75.0 MB in the beginning and 82.1 MB in the end (delta: -7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:23:33,080 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.96 ms. Allocated memory is still 109.1 MB. Free memory was 82.1 MB in the beginning and 79.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:23:33,085 INFO L168 Benchmark]: Boogie Preprocessor took 86.59 ms. Allocated memory is still 109.1 MB. Free memory was 79.5 MB in the beginning and 77.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:23:33,086 INFO L168 Benchmark]: RCFGBuilder took 715.23 ms. Allocated memory is still 109.1 MB. Free memory was 77.4 MB in the beginning and 59.0 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:23:33,087 INFO L168 Benchmark]: TraceAbstraction took 763.13 ms. Allocated memory is still 109.1 MB. Free memory was 58.5 MB in the beginning and 74.6 MB in the end (delta: -16.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:23:33,087 INFO L168 Benchmark]: Witness Printer took 5.19 ms. Allocated memory is still 109.1 MB. Free memory was 74.6 MB in the beginning and 74.0 MB in the end (delta: 634.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:23:33,102 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory was 55.0 MB in the beginning and 55.0 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 406.35 ms. Allocated memory is still 109.1 MB. Free memory was 75.0 MB in the beginning and 82.1 MB in the end (delta: -7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.96 ms. Allocated memory is still 109.1 MB. Free memory was 82.1 MB in the beginning and 79.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.59 ms. Allocated memory is still 109.1 MB. Free memory was 79.5 MB in the beginning and 77.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 715.23 ms. Allocated memory is still 109.1 MB. Free memory was 77.4 MB in the beginning and 59.0 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 763.13 ms. Allocated memory is still 109.1 MB. Free memory was 58.5 MB in the beginning and 74.6 MB in the end (delta: -16.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.19 ms. Allocated memory is still 109.1 MB. Free memory was 74.6 MB in the beginning and 74.0 MB in the end (delta: 634.0 kB). 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: 188]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 43, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 38, overapproximation of someBinaryDOUBLEComparisonOperation at line 187, overapproximation of bitwiseXor at line 39. Possible FailurePath: [L17-L20] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={6:0}] [L179] double y = -1.0 / 0.0; [L180] double x = __VERIFIER_nondet_double(); [L163] __int32_t hx; VAL [one_fmod=1, Zero_fmod={6:0}] [L165] ieee_double_shape_type gh_u; [L166] gh_u.value = (x) [L167] EXPR gh_u.parts.msw [L167] (hx) = gh_u.parts.msw [L169] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [one_fmod=1, Zero_fmod={6:0}] [L182] COND TRUE isfinite_double(x) [L23] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L24] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={6:0}] [L27] ieee_double_shape_type ew_u; [L28] ew_u.value = (x) [L29] EXPR ew_u.parts.msw [L29] (hx) = ew_u.parts.msw [L30] EXPR ew_u.parts.lsw [L30] (lx) = ew_u.parts.lsw [L33] ieee_double_shape_type ew_u; [L34] ew_u.value = (y) [L35] EXPR ew_u.parts.msw [L35] (hy) = ew_u.parts.msw [L36] EXPR ew_u.parts.lsw [L36] (ly) = ew_u.parts.lsw [L38] sx = hx & 0x80000000 [L39] hx ^= sx [L40] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={6:0}] [L42-L43] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L44] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={6:0}] [L184] double res = fmod_double(x, y); [L187] COND TRUE res != x VAL [one_fmod=1, Zero_fmod={6:0}] [L188] reach_error() VAL [one_fmod=1, Zero_fmod={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 638.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 10.9ms, AutomataDifference: 54.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 87 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=60occurred 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: 25.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.2ms SsaConstructionTime, 158.9ms SatisfiabilityAnalysisTime, 51.9ms InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 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 01:23:33,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/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 01:23:35,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:23:35,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:23:35,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:23:35,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:23:35,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:23:35,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:23:35,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:23:35,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:23:35,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:23:35,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:23:35,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:23:35,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:23:35,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:23:35,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:23:35,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:23:35,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:23:35,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:23:35,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:23:35,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:23:35,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:23:35,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:23:35,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:23:35,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:23:35,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:23:35,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:23:35,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:23:35,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:23:35,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:23:35,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:23:35,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:23:35,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:23:35,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:23:35,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:23:35,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:23:35,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:23:35,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:23:35,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:23:35,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:23:35,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:23:35,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:23:35,844 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-13 01:23:35,887 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:23:35,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:23:35,889 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:23:35,889 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:23:35,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:23:35,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:23:35,892 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:23:35,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:23:35,892 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:23:35,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:23:35,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:23:35,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 01:23:35,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 01:23:35,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 01:23:35,895 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 01:23:35,895 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 01:23:35,895 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:23:35,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:23:35,896 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:23:35,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 01:23:35,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:23:35,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:23:35,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 01:23:35,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:23:35,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:23:35,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 01:23:35,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 01:23:35,898 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 01:23:35,899 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 01:23:35,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 01:23:35,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:23:35,899 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 01:23:35,900 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_f5d01431-3a2c-44d0-baef-c3916d642868/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4975ced40ee4a8ea85abb8c123fa258e6c012e9d [2021-10-13 01:23:36,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:23:36,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:23:36,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:23:36,323 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:23:36,324 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:23:36,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/float-newlib/double_req_bl_1131b.c [2021-10-13 01:23:36,408 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/data/43845de7c/757422f7c6224c1ea6dc75bd6c9f8dda/FLAG2c4f12238 [2021-10-13 01:23:37,010 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:23:37,016 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/sv-benchmarks/c/float-newlib/double_req_bl_1131b.c [2021-10-13 01:23:37,029 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/data/43845de7c/757422f7c6224c1ea6dc75bd6c9f8dda/FLAG2c4f12238 [2021-10-13 01:23:37,329 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/data/43845de7c/757422f7c6224c1ea6dc75bd6c9f8dda [2021-10-13 01:23:37,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:23:37,333 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:23:37,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:23:37,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:23:37,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:23:37,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:23:37" (1/1) ... [2021-10-13 01:23:37,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19cb30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:37, skipping insertion in model container [2021-10-13 01:23:37,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:23:37" (1/1) ... [2021-10-13 01:23:37,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:23:37,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:23:37,576 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_f5d01431-3a2c-44d0-baef-c3916d642868/sv-benchmarks/c/float-newlib/double_req_bl_1131b.c[4119,4132] [2021-10-13 01:23:37,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:23:37,617 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:23:37,689 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_f5d01431-3a2c-44d0-baef-c3916d642868/sv-benchmarks/c/float-newlib/double_req_bl_1131b.c[4119,4132] [2021-10-13 01:23:37,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:23:37,709 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:23:37,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:37 WrapperNode [2021-10-13 01:23:37,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:23:37,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:23:37,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:23:37,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:23:37,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:37" (1/1) ... [2021-10-13 01:23:37,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:37" (1/1) ... [2021-10-13 01:23:37,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:23:37,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:23:37,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:23:37,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:23:37,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:37" (1/1) ... [2021-10-13 01:23:37,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:37" (1/1) ... [2021-10-13 01:23:37,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:37" (1/1) ... [2021-10-13 01:23:37,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:37" (1/1) ... [2021-10-13 01:23:37,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:37" (1/1) ... [2021-10-13 01:23:37,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:37" (1/1) ... [2021-10-13 01:23:37,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:37" (1/1) ... [2021-10-13 01:23:37,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:23:37,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:23:37,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:23:37,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:23:37,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:37" (1/1) ... [2021-10-13 01:23:37,813 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:23:37,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:37,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:37,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 01:23:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-13 01:23:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-13 01:23:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 01:23:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:23:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-13 01:23:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 01:23:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:23:37,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:23:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 01:23:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 01:23:43,336 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:23:43,336 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-10-13 01:23:43,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:23:43 BoogieIcfgContainer [2021-10-13 01:23:43,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:23:43,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 01:23:43,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 01:23:43,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 01:23:43,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:23:37" (1/3) ... [2021-10-13 01:23:43,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77127691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:23:43, skipping insertion in model container [2021-10-13 01:23:43,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:37" (2/3) ... [2021-10-13 01:23:43,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77127691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:23:43, skipping insertion in model container [2021-10-13 01:23:43,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:23:43" (3/3) ... [2021-10-13 01:23:43,349 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2021-10-13 01:23:43,356 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 01:23:43,356 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 01:23:43,406 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 01:23:43,413 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 01:23:43,413 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 01:23:43,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 58 states have (on average 1.793103448275862) internal successors, (104), 59 states have internal predecessors, (104), 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 01:23:43,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 01:23:43,448 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:23:43,449 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:23:43,449 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:23:43,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:43,460 INFO L82 PathProgramCache]: Analyzing trace with hash 2036387893, now seen corresponding path program 1 times [2021-10-13 01:23:43,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 01:23:43,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468853562] [2021-10-13 01:23:43,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:23:43,475 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 01:23:43,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 01:23:43,487 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 01:23:43,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 01:23:43,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:43,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 01:23:43,768 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 01:23:43,773 INFO L168 Benchmark]: Toolchain (without parser) took 6439.33 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.7 MB in the beginning and 48.0 MB in the end (delta: -14.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:23:43,773 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 56.6 MB. Free memory is still 37.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:23:43,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.39 ms. Allocated memory is still 56.6 MB. Free memory was 33.6 MB in the beginning and 36.6 MB in the end (delta: -3.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:23:43,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.59 ms. Allocated memory is still 56.6 MB. Free memory was 36.6 MB in the beginning and 34.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:23:43,775 INFO L168 Benchmark]: Boogie Preprocessor took 42.35 ms. Allocated memory is still 56.6 MB. Free memory was 34.3 MB in the beginning and 32.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:23:43,775 INFO L168 Benchmark]: RCFGBuilder took 5534.98 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 32.2 MB in the beginning and 40.4 MB in the end (delta: -8.2 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2021-10-13 01:23:43,776 INFO L168 Benchmark]: TraceAbstraction took 429.04 ms. Allocated memory is still 69.2 MB. Free memory was 39.9 MB in the beginning and 48.0 MB in the end (delta: -8.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:23:43,780 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 56.6 MB. Free memory is still 37.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 375.39 ms. Allocated memory is still 56.6 MB. Free memory was 33.6 MB in the beginning and 36.6 MB in the end (delta: -3.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.59 ms. Allocated memory is still 56.6 MB. Free memory was 36.6 MB in the beginning and 34.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.35 ms. Allocated memory is still 56.6 MB. Free memory was 34.3 MB in the beginning and 32.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5534.98 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 32.2 MB in the beginning and 40.4 MB in the end (delta: -8.2 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 429.04 ms. Allocated memory is still 69.2 MB. Free memory was 39.9 MB in the beginning and 48.0 MB in the end (delta: -8.1 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 01:23:43,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d01431-3a2c-44d0-baef-c3916d642868/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...