./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_double_range.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_range.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3 --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 001d34650580de0e8f1d5d4a40932476caadcd60 .............................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_range.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3 --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 001d34650580de0e8f1d5d4a40932476caadcd60 ........................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:46:15,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:46:15,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:46:15,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:46:15,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:46:15,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:46:15,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:46:15,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:46:15,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:46:15,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:46:15,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:46:15,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:46:15,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:46:15,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:46:15,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:46:15,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:46:15,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:46:15,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:46:15,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:46:15,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:46:15,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:46:15,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:46:15,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:46:15,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:46:15,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:46:15,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:46:15,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:46:15,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:46:15,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:46:15,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:46:15,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:46:15,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:46:15,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:46:15,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:46:15,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:46:15,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:46:15,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:46:15,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:46:15,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:46:15,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:46:15,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:46:15,501 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 19:46:15,551 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:46:15,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:46:15,557 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:46:15,557 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:46:15,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:46:15,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:46:15,568 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:46:15,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:46:15,568 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:46:15,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:46:15,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:46:15,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:46:15,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:46:15,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:46:15,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:46:15,571 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:46:15,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:46:15,572 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:46:15,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:46:15,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:46:15,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:46:15,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:46:15,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:46:15,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:46:15,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:46:15,574 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:46:15,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:46:15,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:46:15,575 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:46:15,577 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:46:15,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:46:15,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:46:15,578 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_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 001d34650580de0e8f1d5d4a40932476caadcd60 [2021-10-15 19:46:15,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:46:16,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:46:16,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:46:16,026 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:46:16,028 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:46:16,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/float-benchs/nan_double_range.c [2021-10-15 19:46:16,111 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/data/f07806c1d/6cdf04810b55429283f845a0ce4fd1a2/FLAG998af096f [2021-10-15 19:46:16,664 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:46:16,666 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/sv-benchmarks/c/float-benchs/nan_double_range.c [2021-10-15 19:46:16,675 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/data/f07806c1d/6cdf04810b55429283f845a0ce4fd1a2/FLAG998af096f [2021-10-15 19:46:17,001 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/data/f07806c1d/6cdf04810b55429283f845a0ce4fd1a2 [2021-10-15 19:46:17,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:46:17,007 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:46:17,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:46:17,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:46:17,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:46:17,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:46:17" (1/1) ... [2021-10-15 19:46:17,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ebf53c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:17, skipping insertion in model container [2021-10-15 19:46:17,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:46:17" (1/1) ... [2021-10-15 19:46:17,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:46:17,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:46:17,275 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_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2021-10-15 19:46:17,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:46:17,301 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:46:17,317 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_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2021-10-15 19:46:17,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:46:17,338 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:46:17,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:17 WrapperNode [2021-10-15 19:46:17,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:46:17,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:46:17,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:46:17,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:46:17,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:17" (1/1) ... [2021-10-15 19:46:17,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:17" (1/1) ... [2021-10-15 19:46:17,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:46:17,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:46:17,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:46:17,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:46:17,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:17" (1/1) ... [2021-10-15 19:46:17,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:17" (1/1) ... [2021-10-15 19:46:17,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:17" (1/1) ... [2021-10-15 19:46:17,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:17" (1/1) ... [2021-10-15 19:46:17,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:17" (1/1) ... [2021-10-15 19:46:17,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:17" (1/1) ... [2021-10-15 19:46:17,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:17" (1/1) ... [2021-10-15 19:46:17,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:46:17,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:46:17,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:46:17,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:46:17,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:17" (1/1) ... [2021-10-15 19:46:17,421 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:46:17,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:46:17,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:46:17,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:46:17,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:46:17,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:46:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:46:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:46:17,729 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:46:17,729 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-15 19:46:17,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:46:17 BoogieIcfgContainer [2021-10-15 19:46:17,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:46:17,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:46:17,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:46:17,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:46:17,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:46:17" (1/3) ... [2021-10-15 19:46:17,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d563625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:46:17, skipping insertion in model container [2021-10-15 19:46:17,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:17" (2/3) ... [2021-10-15 19:46:17,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d563625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:46:17, skipping insertion in model container [2021-10-15 19:46:17,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:46:17" (3/3) ... [2021-10-15 19:46:17,744 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2021-10-15 19:46:17,751 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:46:17,752 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 19:46:17,815 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:46:17,824 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=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 [2021-10-15 19:46:17,825 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 19:46:17,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 10 places, 11 transitions, 22 flow [2021-10-15 19:46:17,862 INFO L129 PetriNetUnfolder]: 2/11 cut-off events. [2021-10-15 19:46:17,862 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:46:17,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12 conditions, 11 events. 2/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 8 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-10-15 19:46:17,865 INFO L82 GeneralOperation]: Start removeDead. Operand has 10 places, 11 transitions, 22 flow [2021-10-15 19:46:17,869 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 6 places, 5 transitions, 10 flow [2021-10-15 19:46:17,872 INFO L129 PetriNetUnfolder]: 0/4 cut-off events. [2021-10-15 19:46:17,872 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:46:17,873 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:46:17,874 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-10-15 19:46:17,875 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:46:17,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:46:17,882 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2021-10-15 19:46:17,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:46:17,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232003063] [2021-10-15 19:46:17,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:46:17,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:46:18,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:46:18,030 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:46:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:46:18,077 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:46:18,079 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-15 19:46:18,081 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:46:18,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:46:18,092 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:46:18,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:46:18 BoogieIcfgContainer [2021-10-15 19:46:18,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:46:18,112 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:46:18,113 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:46:18,113 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:46:18,113 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:46:17" (3/4) ... [2021-10-15 19:46:18,118 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 19:46:18,118 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:46:18,121 INFO L168 Benchmark]: Toolchain (without parser) took 1112.46 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 54.2 MB in the beginning and 66.5 MB in the end (delta: -12.3 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:46:18,122 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 96.5 MB. Free memory is still 70.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:46:18,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.03 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 54.0 MB in the beginning and 92.1 MB in the end (delta: -38.2 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:46:18,124 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.09 ms. Allocated memory is still 117.4 MB. Free memory was 92.1 MB in the beginning and 91.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:46:18,125 INFO L168 Benchmark]: Boogie Preprocessor took 25.11 ms. Allocated memory is still 117.4 MB. Free memory was 91.1 MB in the beginning and 90.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:46:18,126 INFO L168 Benchmark]: RCFGBuilder took 323.03 ms. Allocated memory is still 117.4 MB. Free memory was 90.0 MB in the beginning and 80.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:46:18,126 INFO L168 Benchmark]: TraceAbstraction took 377.36 ms. Allocated memory is still 117.4 MB. Free memory was 80.1 MB in the beginning and 66.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:46:18,127 INFO L168 Benchmark]: Witness Printer took 5.60 ms. Allocated memory is still 117.4 MB. Free memory is still 66.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:46:18,132 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 96.5 MB. Free memory is still 70.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 329.03 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 54.0 MB in the beginning and 92.1 MB in the end (delta: -38.2 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.09 ms. Allocated memory is still 117.4 MB. Free memory was 92.1 MB in the beginning and 91.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.11 ms. Allocated memory is still 117.4 MB. Free memory was 91.1 MB in the beginning and 90.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 323.03 ms. Allocated memory is still 117.4 MB. Free memory was 90.0 MB in the beginning and 80.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 377.36 ms. Allocated memory is still 117.4 MB. Free memory was 80.1 MB in the beginning and 66.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.60 ms. Allocated memory is still 117.4 MB. Free memory is still 66.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L15] COND TRUE x >= -1e307 && x <= 1e307 [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 280.0ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 44.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.3ms SsaConstructionTime, 49.1ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-15 19:46:18,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:46:21,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:46:21,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:46:21,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:46:21,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:46:21,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:46:21,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:46:21,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:46:21,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:46:21,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:46:21,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:46:21,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:46:21,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:46:21,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:46:21,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:46:21,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:46:21,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:46:21,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:46:21,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:46:21,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:46:21,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:46:21,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:46:21,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:46:21,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:46:21,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:46:21,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:46:21,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:46:21,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:46:21,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:46:21,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:46:21,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:46:21,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:46:21,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:46:21,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:46:21,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:46:21,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:46:21,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:46:21,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:46:21,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:46:21,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:46:21,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:46:21,440 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-15 19:46:21,502 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:46:21,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:46:21,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:46:21,504 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:46:21,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:46:21,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:46:21,508 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:46:21,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:46:21,509 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:46:21,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:46:21,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:46:21,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:46:21,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:46:21,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:46:21,513 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-15 19:46:21,513 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-15 19:46:21,514 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:46:21,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:46:21,514 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:46:21,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:46:21,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:46:21,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:46:21,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:46:21,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:46:21,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:46:21,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:46:21,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:46:21,517 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-15 19:46:21,517 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-15 19:46:21,517 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:46:21,518 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:46:21,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:46:21,519 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:46:21,519 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-15 19:46:21,519 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_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 001d34650580de0e8f1d5d4a40932476caadcd60 [2021-10-15 19:46:22,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:46:22,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:46:22,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:46:22,062 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:46:22,063 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:46:22,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/float-benchs/nan_double_range.c [2021-10-15 19:46:22,152 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/data/0688dceb9/e5da8779a4204dc99354775ca7b311de/FLAG8d0f66238 [2021-10-15 19:46:22,845 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:46:22,846 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/sv-benchmarks/c/float-benchs/nan_double_range.c [2021-10-15 19:46:22,854 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/data/0688dceb9/e5da8779a4204dc99354775ca7b311de/FLAG8d0f66238 [2021-10-15 19:46:23,207 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/data/0688dceb9/e5da8779a4204dc99354775ca7b311de [2021-10-15 19:46:23,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:46:23,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:46:23,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:46:23,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:46:23,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:46:23,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:46:23" (1/1) ... [2021-10-15 19:46:23,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f1f361a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:23, skipping insertion in model container [2021-10-15 19:46:23,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:46:23" (1/1) ... [2021-10-15 19:46:23,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:46:23,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:46:23,427 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_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2021-10-15 19:46:23,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:46:23,456 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:46:23,472 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_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2021-10-15 19:46:23,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:46:23,495 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:46:23,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:23 WrapperNode [2021-10-15 19:46:23,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:46:23,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:46:23,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:46:23,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:46:23,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:23" (1/1) ... [2021-10-15 19:46:23,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:23" (1/1) ... [2021-10-15 19:46:23,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:46:23,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:46:23,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:46:23,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:46:23,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:23" (1/1) ... [2021-10-15 19:46:23,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:23" (1/1) ... [2021-10-15 19:46:23,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:23" (1/1) ... [2021-10-15 19:46:23,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:23" (1/1) ... [2021-10-15 19:46:23,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:23" (1/1) ... [2021-10-15 19:46:23,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:23" (1/1) ... [2021-10-15 19:46:23,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:23" (1/1) ... [2021-10-15 19:46:23,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:46:23,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:46:23,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:46:23,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:46:23,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:23" (1/1) ... [2021-10-15 19:46:23,628 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:46:23,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:46:23,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:46:23,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:46:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-15 19:46:23,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:46:23,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:46:23,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:46:24,033 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:46:24,033 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-15 19:46:24,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:46:24 BoogieIcfgContainer [2021-10-15 19:46:24,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:46:24,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:46:24,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:46:24,042 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:46:24,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:46:23" (1/3) ... [2021-10-15 19:46:24,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509032cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:46:24, skipping insertion in model container [2021-10-15 19:46:24,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:23" (2/3) ... [2021-10-15 19:46:24,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509032cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:46:24, skipping insertion in model container [2021-10-15 19:46:24,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:46:24" (3/3) ... [2021-10-15 19:46:24,046 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2021-10-15 19:46:24,069 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:46:24,070 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 19:46:24,150 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:46:24,159 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=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 [2021-10-15 19:46:24,159 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 19:46:24,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 10 places, 11 transitions, 22 flow [2021-10-15 19:46:24,221 INFO L129 PetriNetUnfolder]: 2/11 cut-off events. [2021-10-15 19:46:24,222 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:46:24,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12 conditions, 11 events. 2/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 8 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-10-15 19:46:24,225 INFO L82 GeneralOperation]: Start removeDead. Operand has 10 places, 11 transitions, 22 flow [2021-10-15 19:46:24,230 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 6 places, 5 transitions, 10 flow [2021-10-15 19:46:24,233 INFO L129 PetriNetUnfolder]: 0/4 cut-off events. [2021-10-15 19:46:24,233 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:46:24,234 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:46:24,235 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-10-15 19:46:24,235 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:46:24,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:46:24,243 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2021-10-15 19:46:24,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 19:46:24,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [249187818] [2021-10-15 19:46:24,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:46:24,261 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 19:46:24,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 19:46:24,266 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 19:46:24,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-15 19:46:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:46:24,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 19:46:24,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:46:24,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:46:24,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-15 19:46:24,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:46:24,803 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-15 19:46:24,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [249187818] [2021-10-15 19:46:24,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [249187818] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-15 19:46:24,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:46:24,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-15 19:46:24,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129752742] [2021-10-15 19:46:24,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-15 19:46:24,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-15 19:46:24,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:46:24,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:46:24,841 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 11 [2021-10-15 19:46:24,845 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 6 places, 5 transitions, 10 flow. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:46:24,846 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:46:24,846 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 11 [2021-10-15 19:46:24,848 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:46:24,856 INFO L129 PetriNetUnfolder]: 0/3 cut-off events. [2021-10-15 19:46:24,857 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:46:24,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6 conditions, 3 events. 0/3 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/4 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-10-15 19:46:24,858 INFO L132 encePairwiseOnDemand]: 9/11 looper letters, 0 selfloop transitions, 0 changer transitions 3/3 dead transitions. [2021-10-15 19:46:24,859 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 6 places, 3 transitions, 8 flow [2021-10-15 19:46:24,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:46:24,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:46:24,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2021-10-15 19:46:24,873 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.696969696969697 [2021-10-15 19:46:24,874 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 23 transitions. [2021-10-15 19:46:24,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 23 transitions. [2021-10-15 19:46:24,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:46:24,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 23 transitions. [2021-10-15 19:46:24,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:46:24,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:46:24,887 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:46:24,889 INFO L186 Difference]: Start difference. First operand has 6 places, 5 transitions, 10 flow. Second operand 3 states and 23 transitions. [2021-10-15 19:46:24,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 6 places, 3 transitions, 8 flow [2021-10-15 19:46:24,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 6 places, 3 transitions, 8 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:46:24,894 INFO L242 Difference]: Finished difference. Result has 6 places, 0 transitions, 0 flow [2021-10-15 19:46:24,896 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=11, PETRI_DIFFERENCE_MINUEND_FLOW=6, PETRI_DIFFERENCE_MINUEND_PLACES=4, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=6, PETRI_TRANSITIONS=0} [2021-10-15 19:46:24,897 INFO L334 CegarLoopForPetriNet]: 6 programPoint places, 0 predicate places. [2021-10-15 19:46:24,898 INFO L470 AbstractCegarLoop]: Abstraction has has 6 places, 0 transitions, 0 flow [2021-10-15 19:46:24,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:46:24,901 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:46:24,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:46:25,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 [2021-10-15 19:46:25,123 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:46:25,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:46:25 BoogieIcfgContainer [2021-10-15 19:46:25,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:46:25,130 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:46:25,131 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:46:25,131 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:46:25,132 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:46:24" (3/4) ... [2021-10-15 19:46:25,137 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-15 19:46:25,151 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-15 19:46:25,152 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-15 19:46:25,152 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-15 19:46:25,152 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:46:25,192 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:46:25,193 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:46:25,195 INFO L168 Benchmark]: Toolchain (without parser) took 1980.99 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 37.1 MB in the beginning and 44.4 MB in the end (delta: -7.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:46:25,196 INFO L168 Benchmark]: CDTParser took 0.34 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. [2021-10-15 19:46:25,197 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.09 ms. Allocated memory is still 58.7 MB. Free memory was 36.9 MB in the beginning and 27.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:46:25,197 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.14 ms. Allocated memory is still 58.7 MB. Free memory was 27.1 MB in the beginning and 41.9 MB in the end (delta: -14.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:46:25,198 INFO L168 Benchmark]: Boogie Preprocessor took 32.01 ms. Allocated memory is still 58.7 MB. Free memory was 41.9 MB in the beginning and 40.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:46:25,199 INFO L168 Benchmark]: RCFGBuilder took 418.60 ms. Allocated memory is still 58.7 MB. Free memory was 40.8 MB in the beginning and 31.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:46:25,200 INFO L168 Benchmark]: TraceAbstraction took 1091.45 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 31.2 MB in the beginning and 46.8 MB in the end (delta: -15.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:46:25,201 INFO L168 Benchmark]: Witness Printer took 62.68 ms. Allocated memory is still 81.8 MB. Free memory was 46.8 MB in the beginning and 44.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:46:25,205 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 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 280.09 ms. Allocated memory is still 58.7 MB. Free memory was 36.9 MB in the beginning and 27.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.14 ms. Allocated memory is still 58.7 MB. Free memory was 27.1 MB in the beginning and 41.9 MB in the end (delta: -14.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.01 ms. Allocated memory is still 58.7 MB. Free memory was 41.9 MB in the beginning and 40.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 418.60 ms. Allocated memory is still 58.7 MB. Free memory was 40.8 MB in the beginning and 31.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1091.45 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 31.2 MB in the beginning and 46.8 MB in the end (delta: -15.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. * Witness Printer took 62.68 ms. Allocated memory is still 81.8 MB. Free memory was 46.8 MB in the beginning and 44.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 978.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 63.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 70.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 30.4ms SsaConstructionTime, 69.7ms SatisfiabilityAnalysisTime, 334.2ms InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 5 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-15 19:46:25,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_786e9ea8-aa18-46bc-a03a-ba487a75bbe0/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...