./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.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_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/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_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/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_f8809ce7-cd77-49f3-8060-f64410ef3245/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 712005727f62c46a009e5aa995b5d1c386dc6cd1 ......................................................................................................................................................................................................................................................................................................................... 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_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/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_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/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_f8809ce7-cd77-49f3-8060-f64410ef3245/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 712005727f62c46a009e5aa995b5d1c386dc6cd1 ................................................................................................................................................................................................................................................................... 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 00:00:44,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:00:44,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:00:44,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:00:44,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:00:44,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:00:44,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:00:44,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:00:44,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:00:44,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:00:44,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:00:44,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:00:44,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:00:44,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:00:44,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:00:44,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:00:44,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:00:44,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:00:44,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:00:44,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:00:44,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:00:44,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:00:44,656 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:00:44,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:00:44,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:00:44,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:00:44,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:00:44,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:00:44,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:00:44,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:00:44,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:00:44,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:00:44,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:00:44,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:00:44,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:00:44,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:00:44,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:00:44,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:00:44,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:00:44,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:00:44,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:00:44,676 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:00:44,701 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:00:44,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:00:44,702 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:00:44,703 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:00:44,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:00:44,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:00:44,705 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:00:44,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:00:44,705 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:00:44,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:00:44,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:00:44,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:00:44,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:00:44,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:00:44,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:00:44,707 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:00:44,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:00:44,708 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:00:44,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:00:44,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:00:44,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:00:44,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:00:44,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:00:44,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:00:44,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:00:44,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:00:44,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:00:44,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:00:44,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:00:44,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:00:44,712 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_f8809ce7-cd77-49f3-8060-f64410ef3245/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 712005727f62c46a009e5aa995b5d1c386dc6cd1 [2021-10-13 00:00:44,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:00:44,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:00:45,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:00:45,004 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:00:45,005 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:00:45,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2021-10-13 00:00:45,107 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/data/590c36c3d/65b4b61f0227449fbc30acd1b2d64ec6/FLAG2db6baf8b [2021-10-13 00:00:45,631 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:00:45,632 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2021-10-13 00:00:45,651 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/data/590c36c3d/65b4b61f0227449fbc30acd1b2d64ec6/FLAG2db6baf8b [2021-10-13 00:00:46,021 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/data/590c36c3d/65b4b61f0227449fbc30acd1b2d64ec6 [2021-10-13 00:00:46,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:00:46,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:00:46,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:00:46,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:00:46,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:00:46,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:00:46" (1/1) ... [2021-10-13 00:00:46,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34e38320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:46, skipping insertion in model container [2021-10-13 00:00:46,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:00:46" (1/1) ... [2021-10-13 00:00:46,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:00:46,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:00:46,338 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_f8809ce7-cd77-49f3-8060-f64410ef3245/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c[3181,3194] [2021-10-13 00:00:46,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:00:46,353 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:00:46,417 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_f8809ce7-cd77-49f3-8060-f64410ef3245/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c[3181,3194] [2021-10-13 00:00:46,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:00:46,440 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:00:46,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:46 WrapperNode [2021-10-13 00:00:46,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:00:46,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:00:46,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:00:46,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:00:46,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:46" (1/1) ... [2021-10-13 00:00:46,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:46" (1/1) ... [2021-10-13 00:00:46,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:00:46,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:00:46,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:00:46,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:00:46,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:46" (1/1) ... [2021-10-13 00:00:46,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:46" (1/1) ... [2021-10-13 00:00:46,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:46" (1/1) ... [2021-10-13 00:00:46,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:46" (1/1) ... [2021-10-13 00:00:46,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:46" (1/1) ... [2021-10-13 00:00:46,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:46" (1/1) ... [2021-10-13 00:00:46,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:46" (1/1) ... [2021-10-13 00:00:46,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:00:46,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:00:46,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:00:46,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:00:46,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:46" (1/1) ... [2021-10-13 00:00:46,530 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:00:46,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:00:46,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:00:46,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:00:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:00:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:00:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:00:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-13 00:00:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 00:00:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:00:46,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:00:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:00:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-13 00:00:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:00:47,050 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:00:47,050 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-13 00:00:47,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:00:47 BoogieIcfgContainer [2021-10-13 00:00:47,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:00:47,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:00:47,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:00:47,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:00:47,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:00:46" (1/3) ... [2021-10-13 00:00:47,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39adfebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:00:47, skipping insertion in model container [2021-10-13 00:00:47,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:46" (2/3) ... [2021-10-13 00:00:47,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39adfebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:00:47, skipping insertion in model container [2021-10-13 00:00:47,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:00:47" (3/3) ... [2021-10-13 00:00:47,060 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2021-10-13 00:00:47,066 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:00:47,066 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:00:47,112 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:00:47,118 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 00:00:47,119 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:00:47,133 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 35 states have internal predecessors, (57), 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 00:00:47,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 00:00:47,138 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:00:47,138 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:00:47,139 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:00:47,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:00:47,145 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2021-10-13 00:00:47,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:00:47,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537263161] [2021-10-13 00:00:47,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:00:47,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:00:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:00:47,368 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 00:00:47,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:00:47,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537263161] [2021-10-13 00:00:47,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537263161] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:00:47,370 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:00:47,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:00:47,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359482822] [2021-10-13 00:00:47,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 00:00:47,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:00:47,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:00:47,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:00:47,459 INFO L87 Difference]: Start difference. First operand has 36 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 35 states have internal predecessors, (57), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 00:00:47,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:00:47,494 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2021-10-13 00:00:47,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:00:47,496 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-10-13 00:00:47,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:00:47,508 INFO L225 Difference]: With dead ends: 70 [2021-10-13 00:00:47,509 INFO L226 Difference]: Without dead ends: 33 [2021-10-13 00:00:47,513 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 00:00:47,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-13 00:00:47,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-13 00:00:47,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 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 00:00:47,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2021-10-13 00:00:47,556 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2021-10-13 00:00:47,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:00:47,557 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-10-13 00:00:47,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 00:00:47,558 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2021-10-13 00:00:47,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 00:00:47,559 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:00:47,559 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:00:47,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:00:47,560 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:00:47,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:00:47,564 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2021-10-13 00:00:47,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:00:47,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824658186] [2021-10-13 00:00:47,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:00:47,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:00:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:00:47,647 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:00:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:00:47,708 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:00:47,708 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:00:47,710 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:00:47,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:00:47,718 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:00:47,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:00:47 BoogieIcfgContainer [2021-10-13 00:00:47,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:00:47,752 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:00:47,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:00:47,753 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:00:47,753 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:00:47" (3/4) ... [2021-10-13 00:00:47,756 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:00:47,757 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:00:47,758 INFO L168 Benchmark]: Toolchain (without parser) took 1729.31 ms. Allocated memory is still 134.2 MB. Free memory was 97.3 MB in the beginning and 97.3 MB in the end (delta: 30.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:00:47,759 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 134.2 MB. Free memory is still 113.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:00:47,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.98 ms. Allocated memory is still 134.2 MB. Free memory was 97.1 MB in the beginning and 85.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:00:47,760 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.63 ms. Allocated memory is still 134.2 MB. Free memory was 85.4 MB in the beginning and 83.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:00:47,761 INFO L168 Benchmark]: Boogie Preprocessor took 32.34 ms. Allocated memory is still 134.2 MB. Free memory was 83.4 MB in the beginning and 81.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:00:47,762 INFO L168 Benchmark]: RCFGBuilder took 531.17 ms. Allocated memory is still 134.2 MB. Free memory was 81.7 MB in the beginning and 106.0 MB in the end (delta: -24.3 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:00:47,762 INFO L168 Benchmark]: TraceAbstraction took 698.29 ms. Allocated memory is still 134.2 MB. Free memory was 105.5 MB in the beginning and 97.7 MB in the end (delta: 7.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:00:47,763 INFO L168 Benchmark]: Witness Printer took 4.23 ms. Allocated memory is still 134.2 MB. Free memory was 97.7 MB in the beginning and 97.3 MB in the end (delta: 464.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:00:47,770 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 134.2 MB. Free memory is still 113.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 409.98 ms. Allocated memory is still 134.2 MB. Free memory was 97.1 MB in the beginning and 85.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.63 ms. Allocated memory is still 134.2 MB. Free memory was 85.4 MB in the beginning and 83.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.34 ms. Allocated memory is still 134.2 MB. Free memory was 83.4 MB in the beginning and 81.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 531.17 ms. Allocated memory is still 134.2 MB. Free memory was 81.7 MB in the beginning and 106.0 MB in the end (delta: -24.3 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 698.29 ms. Allocated memory is still 134.2 MB. Free memory was 105.5 MB in the beginning and 97.7 MB in the end (delta: 7.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.23 ms. Allocated memory is still 134.2 MB. Free memory was 97.7 MB in the beginning and 97.3 MB in the end (delta: 464.0 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: 124]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 123, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of bitwiseAnd at line 48, overapproximation of someUnaryFLOAToperation at line 119, overapproximation of someBinaryArithmeticFLOAToperation at line 52. Possible FailurePath: [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L119] float x = -0.0f; [L39] float y, hi, lo, c, t; [L40] __int32_t k = 0, xsb, sx; [L41] __uint32_t hx; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L44] ieee_float_shape_type gf_u; [L45] gf_u.value = (x) [L46] EXPR gf_u.word [L46] (sx) = gf_u.word [L48] xsb = (sx >> 31) & 1 [L49] hx = sx & 0x7fffffff VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L51] COND TRUE ((hx) > 0x7f800000L) [L52] return x + x; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L120] float res = __ieee754_expf(x); [L123] COND TRUE res != 1.0f VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L124] reach_error() VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 605.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.3ms, AutomataDifference: 88.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 46 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=36occurred 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: 29.2ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 22.8ms SsaConstructionTime, 114.1ms SatisfiabilityAnalysisTime, 78.4ms InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 00:00:47,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/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 00:00:50,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:00:50,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:00:50,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:00:50,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:00:50,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:00:50,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:00:50,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:00:50,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:00:50,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:00:50,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:00:50,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:00:50,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:00:50,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:00:50,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:00:50,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:00:50,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:00:50,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:00:50,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:00:50,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:00:50,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:00:50,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:00:50,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:00:50,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:00:50,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:00:50,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:00:50,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:00:50,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:00:50,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:00:50,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:00:50,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:00:50,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:00:50,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:00:50,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:00:50,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:00:50,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:00:50,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:00:50,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:00:50,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:00:50,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:00:50,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:00:50,419 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-13 00:00:50,464 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:00:50,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:00:50,471 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:00:50,471 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:00:50,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:00:50,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:00:50,474 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:00:50,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:00:50,474 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:00:50,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:00:50,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:00:50,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:00:50,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:00:50,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:00:50,477 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:00:50,477 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:00:50,477 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:00:50,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:00:50,478 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:00:50,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:00:50,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:00:50,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:00:50,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:00:50,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:00:50,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:00:50,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:00:50,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:00:50,480 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:00:50,481 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:00:50,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:00:50,481 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:00:50,481 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:00:50,482 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_f8809ce7-cd77-49f3-8060-f64410ef3245/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 712005727f62c46a009e5aa995b5d1c386dc6cd1 [2021-10-13 00:00:50,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:00:50,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:00:50,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:00:50,903 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:00:50,906 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:00:50,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2021-10-13 00:00:50,986 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/data/ae770a6cc/b600b5910cc84a6aa3ed7545e44dc957/FLAG8fc05c265 [2021-10-13 00:00:51,500 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:00:51,502 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2021-10-13 00:00:51,512 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/data/ae770a6cc/b600b5910cc84a6aa3ed7545e44dc957/FLAG8fc05c265 [2021-10-13 00:00:51,849 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/data/ae770a6cc/b600b5910cc84a6aa3ed7545e44dc957 [2021-10-13 00:00:51,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:00:51,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:00:51,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:00:51,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:00:51,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:00:51,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:00:51" (1/1) ... [2021-10-13 00:00:51,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133f3247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:51, skipping insertion in model container [2021-10-13 00:00:51,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:00:51" (1/1) ... [2021-10-13 00:00:51,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:00:51,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:00:52,088 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_f8809ce7-cd77-49f3-8060-f64410ef3245/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c[3181,3194] [2021-10-13 00:00:52,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:00:52,131 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:00:52,180 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_f8809ce7-cd77-49f3-8060-f64410ef3245/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c[3181,3194] [2021-10-13 00:00:52,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:00:52,200 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:00:52,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:52 WrapperNode [2021-10-13 00:00:52,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:00:52,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:00:52,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:00:52,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:00:52,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:52" (1/1) ... [2021-10-13 00:00:52,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:52" (1/1) ... [2021-10-13 00:00:52,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:00:52,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:00:52,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:00:52,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:00:52,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:52" (1/1) ... [2021-10-13 00:00:52,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:52" (1/1) ... [2021-10-13 00:00:52,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:52" (1/1) ... [2021-10-13 00:00:52,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:52" (1/1) ... [2021-10-13 00:00:52,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:52" (1/1) ... [2021-10-13 00:00:52,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:52" (1/1) ... [2021-10-13 00:00:52,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:52" (1/1) ... [2021-10-13 00:00:52,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:00:52,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:00:52,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:00:52,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:00:52,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:52" (1/1) ... [2021-10-13 00:00:52,338 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:00:52,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:00:52,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:00:52,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:00:52,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-13 00:00:52,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 00:00:52,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:00:52,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-13 00:00:52,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 00:00:52,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:00:52,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:00:52,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-13 00:00:52,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 00:00:52,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:01:02,415 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:01:02,416 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-13 00:01:02,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:01:02 BoogieIcfgContainer [2021-10-13 00:01:02,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:01:02,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:01:02,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:01:02,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:01:02,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:00:51" (1/3) ... [2021-10-13 00:01:02,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74dc24e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:01:02, skipping insertion in model container [2021-10-13 00:01:02,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:52" (2/3) ... [2021-10-13 00:01:02,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74dc24e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:01:02, skipping insertion in model container [2021-10-13 00:01:02,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:01:02" (3/3) ... [2021-10-13 00:01:02,428 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2021-10-13 00:01:02,434 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:01:02,434 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:01:02,486 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:01:02,492 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 00:01:02,493 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:01:02,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 35 states have internal predecessors, (57), 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 00:01:02,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 00:01:02,514 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:01:02,515 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:02,515 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:01:02,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:02,521 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2021-10-13 00:01:02,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:01:02,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228297733] [2021-10-13 00:01:02,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:02,535 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:01:02,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:01:02,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:01:02,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:01:02,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:02,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:01:02,819 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 00:01:02,824 INFO L168 Benchmark]: Toolchain (without parser) took 10969.96 ms. Allocated memory was 62.9 MB in the beginning and 94.4 MB in the end (delta: 31.5 MB). Free memory was 43.3 MB in the beginning and 61.7 MB in the end (delta: -18.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:02,824 INFO L168 Benchmark]: CDTParser took 2.02 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:01:02,825 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.34 ms. Allocated memory is still 62.9 MB. Free memory was 43.1 MB in the beginning and 44.3 MB in the end (delta: -1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:02,826 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.23 ms. Allocated memory is still 62.9 MB. Free memory was 44.3 MB in the beginning and 42.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:02,826 INFO L168 Benchmark]: Boogie Preprocessor took 60.65 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 40.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:02,827 INFO L168 Benchmark]: RCFGBuilder took 10092.77 ms. Allocated memory was 62.9 MB in the beginning and 94.4 MB in the end (delta: 31.5 MB). Free memory was 40.2 MB in the beginning and 71.4 MB in the end (delta: -31.2 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:02,828 INFO L168 Benchmark]: TraceAbstraction took 401.72 ms. Allocated memory is still 94.4 MB. Free memory was 71.0 MB in the beginning and 61.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:02,832 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.02 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 347.34 ms. Allocated memory is still 62.9 MB. Free memory was 43.1 MB in the beginning and 44.3 MB in the end (delta: -1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.23 ms. Allocated memory is still 62.9 MB. Free memory was 44.3 MB in the beginning and 42.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.65 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 40.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10092.77 ms. Allocated memory was 62.9 MB in the beginning and 94.4 MB in the end (delta: 31.5 MB). Free memory was 40.2 MB in the beginning and 71.4 MB in the end (delta: -31.2 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 401.72 ms. Allocated memory is still 94.4 MB. Free memory was 71.0 MB in the beginning and 61.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. 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 00:01:02,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8809ce7-cd77-49f3-8060-f64410ef3245/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...