./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX --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 213c24ef3c7753bf19a615c5715fd8340a45826778b0f8f910dadd2d17208462 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:36:18,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:36:18,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:36:18,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:36:18,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:36:18,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:36:18,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:36:18,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:36:18,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:36:18,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:36:18,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:36:18,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:36:18,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:36:18,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:36:18,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:36:18,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:36:18,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:36:18,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:36:18,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:36:18,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:36:18,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:36:18,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:36:18,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:36:18,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:36:18,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:36:18,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:36:18,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:36:18,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:36:18,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:36:18,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:36:18,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:36:18,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:36:18,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:36:18,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:36:18,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:36:18,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:36:18,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:36:18,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:36:18,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:36:18,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:36:18,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:36:18,416 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 08:36:18,462 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:36:18,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:36:18,463 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:36:18,463 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:36:18,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:36:18,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:36:18,471 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:36:18,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:36:18,472 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:36:18,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:36:18,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:36:18,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:36:18,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:36:18,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:36:18,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:36:18,475 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:36:18,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:36:18,475 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:36:18,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:36:18,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:36:18,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:36:18,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:36:18,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:36:18,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:36:18,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:36:18,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:36:18,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:36:18,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:36:18,478 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:36:18,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:36:18,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:36:18,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:36:18,479 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_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 213c24ef3c7753bf19a615c5715fd8340a45826778b0f8f910dadd2d17208462 [2021-11-09 08:36:18,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:36:18,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:36:18,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:36:18,782 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:36:18,783 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:36:18,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-11-09 08:36:18,849 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/data/6f1336cbe/8b3a56aa9f7141f6bb5778be9c30ee73/FLAG095e647cf [2021-11-09 08:36:19,390 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:36:19,390 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-11-09 08:36:19,397 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/data/6f1336cbe/8b3a56aa9f7141f6bb5778be9c30ee73/FLAG095e647cf [2021-11-09 08:36:19,736 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/data/6f1336cbe/8b3a56aa9f7141f6bb5778be9c30ee73 [2021-11-09 08:36:19,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:36:19,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:36:19,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:36:19,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:36:19,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:36:19,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:36:19" (1/1) ... [2021-11-09 08:36:19,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@124bfe23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:19, skipping insertion in model container [2021-11-09 08:36:19,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:36:19" (1/1) ... [2021-11-09 08:36:19,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:36:19,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:36:19,966 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_a4e1d08a-e341-49ae-abf0-7b32d0301578/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-11-09 08:36:19,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:36:19,976 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:36:20,004 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_a4e1d08a-e341-49ae-abf0-7b32d0301578/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-11-09 08:36:20,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:36:20,019 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:36:20,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:20 WrapperNode [2021-11-09 08:36:20,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:36:20,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:36:20,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:36:20,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:36:20,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:20" (1/1) ... [2021-11-09 08:36:20,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:20" (1/1) ... [2021-11-09 08:36:20,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:36:20,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:36:20,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:36:20,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:36:20,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:20" (1/1) ... [2021-11-09 08:36:20,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:20" (1/1) ... [2021-11-09 08:36:20,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:20" (1/1) ... [2021-11-09 08:36:20,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:20" (1/1) ... [2021-11-09 08:36:20,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:20" (1/1) ... [2021-11-09 08:36:20,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:20" (1/1) ... [2021-11-09 08:36:20,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:20" (1/1) ... [2021-11-09 08:36:20,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:36:20,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:36:20,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:36:20,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:36:20,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:20" (1/1) ... [2021-11-09 08:36:20,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:36:20,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:36:20,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:36:20,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:36:20,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:36:20,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:36:20,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-09 08:36:20,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 08:36:20,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-09 08:36:20,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:36:20,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:36:20,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 08:36:20,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:36:20,553 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:36:20,553 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-09 08:36:20,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:36:20 BoogieIcfgContainer [2021-11-09 08:36:20,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:36:20,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:36:20,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:36:20,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:36:20,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:36:19" (1/3) ... [2021-11-09 08:36:20,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228eb21c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:36:20, skipping insertion in model container [2021-11-09 08:36:20,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:20" (2/3) ... [2021-11-09 08:36:20,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228eb21c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:36:20, skipping insertion in model container [2021-11-09 08:36:20,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:36:20" (3/3) ... [2021-11-09 08:36:20,564 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710.c [2021-11-09 08:36:20,570 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:36:20,570 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 08:36:20,618 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:36:20,625 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:36:20,625 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:36:20,640 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:36:20,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-09 08:36:20,645 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:36:20,645 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:36:20,646 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:36:20,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:36:20,651 INFO L85 PathProgramCache]: Analyzing trace with hash 860611220, now seen corresponding path program 1 times [2021-11-09 08:36:20,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:36:20,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69512267] [2021-11-09 08:36:20,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:36:20,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:36:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:36:20,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:36:20,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:36:20,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69512267] [2021-11-09 08:36:20,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69512267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:36:20,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:36:20,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:36:20,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960980317] [2021-11-09 08:36:20,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 08:36:20,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:36:20,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 08:36:20,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:36:20,878 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:36:20,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:36:20,896 INFO L93 Difference]: Finished difference Result 67 states and 102 transitions. [2021-11-09 08:36:20,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:36:20,905 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-09 08:36:20,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:36:20,914 INFO L225 Difference]: With dead ends: 67 [2021-11-09 08:36:20,915 INFO L226 Difference]: Without dead ends: 31 [2021-11-09 08:36:20,920 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:36:20,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-09 08:36:20,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-11-09 08:36:20,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:36:20,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2021-11-09 08:36:20,955 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 10 [2021-11-09 08:36:20,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:36:20,956 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions. [2021-11-09 08:36:20,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:36:20,957 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2021-11-09 08:36:20,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-09 08:36:20,957 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:36:20,958 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:36:20,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:36:20,958 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:36:20,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:36:20,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1279985196, now seen corresponding path program 1 times [2021-11-09 08:36:20,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:36:20,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135905961] [2021-11-09 08:36:20,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:36:20,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:36:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:36:21,011 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:36:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:36:21,093 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:36:21,094 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-09 08:36:21,096 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:36:21,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 08:36:21,108 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-09 08:36:21,110 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 08:36:21,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 08:36:21 BoogieIcfgContainer [2021-11-09 08:36:21,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 08:36:21,140 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 08:36:21,140 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 08:36:21,140 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 08:36:21,141 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:36:20" (3/4) ... [2021-11-09 08:36:21,144 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 08:36:21,145 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 08:36:21,147 INFO L168 Benchmark]: Toolchain (without parser) took 1406.46 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 74.6 MB in the beginning and 94.8 MB in the end (delta: -20.2 MB). Peak memory consumption was 2.0 MB. Max. memory is 16.1 GB. [2021-11-09 08:36:21,148 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 107.0 MB. Free memory is still 61.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:36:21,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.04 ms. Allocated memory is still 107.0 MB. Free memory was 74.4 MB in the beginning and 79.8 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 08:36:21,149 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.52 ms. Allocated memory is still 107.0 MB. Free memory was 79.8 MB in the beginning and 78.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:36:21,150 INFO L168 Benchmark]: Boogie Preprocessor took 43.42 ms. Allocated memory is still 107.0 MB. Free memory was 78.0 MB in the beginning and 76.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:36:21,151 INFO L168 Benchmark]: RCFGBuilder took 445.45 ms. Allocated memory is still 107.0 MB. Free memory was 76.3 MB in the beginning and 64.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 08:36:21,152 INFO L168 Benchmark]: TraceAbstraction took 581.86 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 63.4 MB in the beginning and 94.8 MB in the end (delta: -31.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:36:21,153 INFO L168 Benchmark]: Witness Printer took 5.16 ms. Allocated memory is still 130.0 MB. Free memory is still 94.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:36:21,157 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 107.0 MB. Free memory is still 61.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 279.04 ms. Allocated memory is still 107.0 MB. Free memory was 74.4 MB in the beginning and 79.8 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.52 ms. Allocated memory is still 107.0 MB. Free memory was 79.8 MB in the beginning and 78.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.42 ms. Allocated memory is still 107.0 MB. Free memory was 78.0 MB in the beginning and 76.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 445.45 ms. Allocated memory is still 107.0 MB. Free memory was 76.3 MB in the beginning and 64.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 581.86 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 63.4 MB in the beginning and 94.8 MB in the end (delta: -31.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.16 ms. Allocated memory is still 130.0 MB. Free memory is still 94.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 100]: 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 15, overapproximation of bitwiseAnd at line 29, overapproximation of someBinaryArithmeticFLOAToperation at line 32. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L93] float x = __VERIFIER_nondet_float(); [L94] COND TRUE x < -0.0f [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L96] float res = __ieee754_sqrtf(x); [L15] return x != x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L99] COND TRUE !isnan_float(res) [L100] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-09 08:36:21,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX --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 213c24ef3c7753bf19a615c5715fd8340a45826778b0f8f910dadd2d17208462 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:36:23,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:36:23,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:36:23,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:36:23,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:36:23,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:36:23,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:36:23,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:36:23,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:36:23,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:36:23,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:36:23,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:36:23,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:36:23,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:36:23,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:36:23,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:36:23,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:36:23,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:36:23,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:36:23,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:36:23,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:36:23,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:36:23,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:36:23,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:36:23,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:36:23,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:36:23,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:36:23,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:36:23,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:36:23,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:36:23,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:36:23,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:36:23,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:36:23,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:36:23,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:36:23,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:36:23,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:36:23,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:36:23,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:36:23,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:36:23,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:36:23,982 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-09 08:36:24,029 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:36:24,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:36:24,029 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:36:24,030 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:36:24,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:36:24,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:36:24,031 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:36:24,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:36:24,032 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:36:24,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:36:24,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:36:24,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:36:24,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:36:24,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:36:24,033 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-09 08:36:24,033 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-09 08:36:24,033 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:36:24,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:36:24,033 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:36:24,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:36:24,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:36:24,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:36:24,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:36:24,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:36:24,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:36:24,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:36:24,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:36:24,035 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-09 08:36:24,036 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-09 08:36:24,036 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:36:24,036 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:36:24,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:36:24,036 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:36:24,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-09 08:36:24,037 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_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 213c24ef3c7753bf19a615c5715fd8340a45826778b0f8f910dadd2d17208462 [2021-11-09 08:36:24,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:36:24,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:36:24,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:36:24,508 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:36:24,509 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:36:24,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-11-09 08:36:24,583 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/data/8397f01c8/a5ca5151d807485bbf6c23cebb0871db/FLAGb7d839f79 [2021-11-09 08:36:25,182 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:36:25,183 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-11-09 08:36:25,192 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/data/8397f01c8/a5ca5151d807485bbf6c23cebb0871db/FLAGb7d839f79 [2021-11-09 08:36:25,523 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/data/8397f01c8/a5ca5151d807485bbf6c23cebb0871db [2021-11-09 08:36:25,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:36:25,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:36:25,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:36:25,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:36:25,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:36:25,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:36:25" (1/1) ... [2021-11-09 08:36:25,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a9cfc80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:25, skipping insertion in model container [2021-11-09 08:36:25,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:36:25" (1/1) ... [2021-11-09 08:36:25,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:36:25,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:36:25,763 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_a4e1d08a-e341-49ae-abf0-7b32d0301578/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-11-09 08:36:25,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:36:25,781 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:36:25,811 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_a4e1d08a-e341-49ae-abf0-7b32d0301578/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-11-09 08:36:25,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:36:25,841 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:36:25,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:25 WrapperNode [2021-11-09 08:36:25,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:36:25,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:36:25,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:36:25,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:36:25,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:25" (1/1) ... [2021-11-09 08:36:25,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:25" (1/1) ... [2021-11-09 08:36:25,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:36:25,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:36:25,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:36:25,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:36:25,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:25" (1/1) ... [2021-11-09 08:36:25,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:25" (1/1) ... [2021-11-09 08:36:25,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:25" (1/1) ... [2021-11-09 08:36:25,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:25" (1/1) ... [2021-11-09 08:36:25,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:25" (1/1) ... [2021-11-09 08:36:25,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:25" (1/1) ... [2021-11-09 08:36:25,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:25" (1/1) ... [2021-11-09 08:36:25,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:36:25,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:36:25,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:36:25,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:36:25,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:25" (1/1) ... [2021-11-09 08:36:25,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:36:26,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:36:26,015 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:36:26,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:36:26,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-09 08:36:26,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:36:26,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-09 08:36:26,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-09 08:36:26,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:36:26,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:36:26,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-09 08:36:26,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-09 08:36:26,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:36:26,949 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:36:26,950 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-09 08:36:26,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:36:26 BoogieIcfgContainer [2021-11-09 08:36:26,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:36:26,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:36:26,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:36:26,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:36:26,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:36:25" (1/3) ... [2021-11-09 08:36:26,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b194958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:36:26, skipping insertion in model container [2021-11-09 08:36:26,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:36:25" (2/3) ... [2021-11-09 08:36:26,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b194958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:36:26, skipping insertion in model container [2021-11-09 08:36:26,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:36:26" (3/3) ... [2021-11-09 08:36:26,978 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710.c [2021-11-09 08:36:26,984 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:36:26,984 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 08:36:27,040 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:36:27,048 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:36:27,049 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:36:27,067 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:36:27,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-09 08:36:27,073 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:36:27,074 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:36:27,075 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:36:27,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:36:27,082 INFO L85 PathProgramCache]: Analyzing trace with hash 860611220, now seen corresponding path program 1 times [2021-11-09 08:36:27,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:36:27,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216748807] [2021-11-09 08:36:27,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:36:27,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:36:27,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:36:27,102 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:36:27,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-09 08:36:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:36:27,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-09 08:36:27,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:36:27,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:36:27,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 08:36:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:36:27,508 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 08:36:27,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216748807] [2021-11-09 08:36:27,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [216748807] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 08:36:27,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:36:27,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-09 08:36:27,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681948903] [2021-11-09 08:36:27,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 08:36:27,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 08:36:27,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 08:36:27,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:36:27,567 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:36:27,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:36:27,596 INFO L93 Difference]: Finished difference Result 67 states and 102 transitions. [2021-11-09 08:36:27,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:36:27,597 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-09 08:36:27,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:36:27,608 INFO L225 Difference]: With dead ends: 67 [2021-11-09 08:36:27,608 INFO L226 Difference]: Without dead ends: 31 [2021-11-09 08:36:27,611 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:36:27,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-09 08:36:27,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-11-09 08:36:27,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:36:27,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2021-11-09 08:36:27,672 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 10 [2021-11-09 08:36:27,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:36:27,673 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions. [2021-11-09 08:36:27,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:36:27,673 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2021-11-09 08:36:27,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-09 08:36:27,674 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:36:27,674 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:36:27,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-09 08:36:27,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 08:36:27,891 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:36:27,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:36:27,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1279985196, now seen corresponding path program 1 times [2021-11-09 08:36:27,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:36:27,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001113507] [2021-11-09 08:36:27,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:36:27,894 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:36:27,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:36:27,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:36:27,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-09 08:36:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:36:28,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-09 08:36:28,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:36:37,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:36:37,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 08:37:26,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:37:26,277 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 08:37:26,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001113507] [2021-11-09 08:37:26,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001113507] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 08:37:26,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:37:26,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2021-11-09 08:37:26,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337870994] [2021-11-09 08:37:26,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-09 08:37:26,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 08:37:26,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-09 08:37:26,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=167, Unknown=2, NotChecked=0, Total=210 [2021-11-09 08:37:26,282 INFO L87 Difference]: Start difference. First operand 31 states and 41 transitions. Second operand has 15 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:37:50,251 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-11-09 08:37:50,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:37:50,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-11-09 08:37:50,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-09 08:37:50,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 08:37:50,454 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:260) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:174) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:140) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:869) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:783) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) 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:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:237) ... 56 more [2021-11-09 08:37:50,459 INFO L168 Benchmark]: Toolchain (without parser) took 84922.43 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 38.6 MB in the beginning and 50.5 MB in the end (delta: -11.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-09 08:37:50,460 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 58.7 MB. Free memory is still 39.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:37:50,461 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.84 ms. Allocated memory is still 58.7 MB. Free memory was 38.5 MB in the beginning and 41.9 MB in the end (delta: -3.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-09 08:37:50,461 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.99 ms. Allocated memory is still 58.7 MB. Free memory was 41.9 MB in the beginning and 40.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:37:50,462 INFO L168 Benchmark]: Boogie Preprocessor took 51.17 ms. Allocated memory is still 58.7 MB. Free memory was 40.2 MB in the beginning and 38.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:37:50,463 INFO L168 Benchmark]: RCFGBuilder took 989.34 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 38.5 MB in the beginning and 57.8 MB in the end (delta: -19.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:37:50,464 INFO L168 Benchmark]: TraceAbstraction took 83488.39 ms. Allocated memory is still 75.5 MB. Free memory was 57.4 MB in the beginning and 50.5 MB in the end (delta: 6.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-11-09 08:37:50,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 58.7 MB. Free memory is still 39.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 304.84 ms. Allocated memory is still 58.7 MB. Free memory was 38.5 MB in the beginning and 41.9 MB in the end (delta: -3.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.99 ms. Allocated memory is still 58.7 MB. Free memory was 41.9 MB in the beginning and 40.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.17 ms. Allocated memory is still 58.7 MB. Free memory was 40.2 MB in the beginning and 38.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 989.34 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 38.5 MB in the beginning and 57.8 MB in the end (delta: -19.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 83488.39 ms. Allocated memory is still 75.5 MB. Free memory was 57.4 MB in the beginning and 50.5 MB in the end (delta: 6.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e1d08a-e341-49ae-abf0-7b32d0301578/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")