./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_float.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD --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 eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e ........................................................................................................................................................................................................................................ 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_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD --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 eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e .............................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:40:42,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:40:42,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:40:42,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:40:42,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:40:42,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:40:42,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:40:42,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:40:42,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:40:42,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:40:42,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:40:42,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:40:42,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:40:42,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:40:42,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:40:42,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:40:42,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:40:42,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:40:42,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:40:42,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:40:42,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:40:42,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:40:42,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:40:42,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:40:42,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:40:42,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:40:42,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:40:42,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:40:42,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:40:42,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:40:42,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:40:42,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:40:42,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:40:42,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:40:42,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:40:42,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:40:42,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:40:42,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:40:42,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:40:42,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:40:42,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:40:42,413 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:40:42,472 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:40:42,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:40:42,474 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:40:42,474 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:40:42,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:40:42,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:40:42,476 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:40:42,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:40:42,477 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:40:42,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:40:42,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:40:42,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:40:42,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:40:42,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:40:42,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:40:42,480 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:40:42,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:40:42,481 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:40:42,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:40:42,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:40:42,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:40:42,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:40:42,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:40:42,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:40:42,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:40:42,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:40:42,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:40:42,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:40:42,484 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:40:42,486 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:40:42,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:40:42,487 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:40:42,487 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_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2021-10-28 23:40:42,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:40:42,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:40:42,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:40:42,893 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:40:42,894 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:40:42,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-benchs/nan_float.c [2021-10-28 23:40:42,998 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/data/8c22b7e89/f0ae34ca2f544c5a9b0fcbef9a066cfa/FLAGe9d9a3844 [2021-10-28 23:40:43,539 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:40:43,540 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/sv-benchmarks/c/float-benchs/nan_float.c [2021-10-28 23:40:43,547 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/data/8c22b7e89/f0ae34ca2f544c5a9b0fcbef9a066cfa/FLAGe9d9a3844 [2021-10-28 23:40:43,924 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/data/8c22b7e89/f0ae34ca2f544c5a9b0fcbef9a066cfa [2021-10-28 23:40:43,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:40:43,929 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:40:43,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:40:43,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:40:43,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:40:43,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:40:43" (1/1) ... [2021-10-28 23:40:43,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69deb10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:43, skipping insertion in model container [2021-10-28 23:40:43,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:40:43" (1/1) ... [2021-10-28 23:40:43,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:40:43,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:40:44,170 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_58838da1-6854-4b7a-83ec-0973cdf93921/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2021-10-28 23:40:44,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:40:44,191 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:40:44,206 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_58838da1-6854-4b7a-83ec-0973cdf93921/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2021-10-28 23:40:44,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:40:44,225 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:40:44,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:44 WrapperNode [2021-10-28 23:40:44,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:40:44,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:40:44,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:40:44,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:40:44,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:44" (1/1) ... [2021-10-28 23:40:44,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:44" (1/1) ... [2021-10-28 23:40:44,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:40:44,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:40:44,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:40:44,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:40:44,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:44" (1/1) ... [2021-10-28 23:40:44,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:44" (1/1) ... [2021-10-28 23:40:44,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:44" (1/1) ... [2021-10-28 23:40:44,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:44" (1/1) ... [2021-10-28 23:40:44,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:44" (1/1) ... [2021-10-28 23:40:44,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:44" (1/1) ... [2021-10-28 23:40:44,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:44" (1/1) ... [2021-10-28 23:40:44,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:40:44,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:40:44,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:40:44,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:40:44,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:44" (1/1) ... [2021-10-28 23:40:44,304 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:40:44,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:44,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:40:44,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:40:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:40:44,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:40:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:40:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:40:44,607 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:40:44,607 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 23:40:44,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:44 BoogieIcfgContainer [2021-10-28 23:40:44,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:40:44,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:40:44,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:40:44,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:40:44,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:40:43" (1/3) ... [2021-10-28 23:40:44,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b9333b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:40:44, skipping insertion in model container [2021-10-28 23:40:44,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:44" (2/3) ... [2021-10-28 23:40:44,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b9333b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:40:44, skipping insertion in model container [2021-10-28 23:40:44,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:44" (3/3) ... [2021-10-28 23:40:44,624 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float.c [2021-10-28 23:40:44,631 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:40:44,631 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:40:44,696 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:40:44,708 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 [2021-10-28 23:40:44,709 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:40:44,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-10-28 23:40:44,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-28 23:40:44,732 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:44,733 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-28 23:40:44,734 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:40:44,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:44,741 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-10-28 23:40:44,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:44,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254204183] [2021-10-28 23:40:44,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:44,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:40:44,884 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:40:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:40:44,931 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:40:44,934 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:40:44,935 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:40:44,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:40:44,944 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-28 23:40:44,948 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:40:44,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:40:44 BoogieIcfgContainer [2021-10-28 23:40:44,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:40:44,970 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:40:44,970 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:40:44,971 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:40:44,971 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:44" (3/4) ... [2021-10-28 23:40:44,976 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:40:44,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:40:44,979 INFO L168 Benchmark]: Toolchain (without parser) took 1048.51 ms. Allocated memory is still 98.6 MB. Free memory was 67.9 MB in the beginning and 50.2 MB in the end (delta: 17.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:44,980 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 98.6 MB. Free memory is still 53.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:40:44,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.67 ms. Allocated memory is still 98.6 MB. Free memory was 67.7 MB in the beginning and 75.3 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:44,982 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.61 ms. Allocated memory is still 98.6 MB. Free memory was 75.3 MB in the beginning and 73.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:40:44,983 INFO L168 Benchmark]: Boogie Preprocessor took 23.99 ms. Allocated memory is still 98.6 MB. Free memory was 73.9 MB in the beginning and 72.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:44,984 INFO L168 Benchmark]: RCFGBuilder took 317.19 ms. Allocated memory is still 98.6 MB. Free memory was 72.9 MB in the beginning and 64.2 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:44,985 INFO L168 Benchmark]: TraceAbstraction took 357.06 ms. Allocated memory is still 98.6 MB. Free memory was 63.9 MB in the beginning and 50.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:44,985 INFO L168 Benchmark]: Witness Printer took 6.52 ms. Allocated memory is still 98.6 MB. Free memory was 50.5 MB in the beginning and 50.2 MB in the end (delta: 384.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:40:44,990 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 98.6 MB. Free memory is still 53.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 294.67 ms. Allocated memory is still 98.6 MB. Free memory was 67.7 MB in the beginning and 75.3 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.61 ms. Allocated memory is still 98.6 MB. Free memory was 75.3 MB in the beginning and 73.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.99 ms. Allocated memory is still 98.6 MB. Free memory was 73.9 MB in the beginning and 72.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 317.19 ms. Allocated memory is still 98.6 MB. Free memory was 72.9 MB in the beginning and 64.2 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 357.06 ms. Allocated memory is still 98.6 MB. Free memory was 63.9 MB in the beginning and 50.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 6.52 ms. Allocated memory is still 98.6 MB. Free memory was 50.5 MB in the beginning and 50.2 MB in the end (delta: 384.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s 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: 8]: 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. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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 [2021-10-28 23:40:45,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/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-b2eff8b [2021-10-28 23:40:48,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:40:48,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:40:48,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:40:48,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:40:48,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:40:48,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:40:48,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:40:48,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:40:48,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:40:48,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:40:48,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:40:48,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:40:48,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:40:48,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:40:48,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:40:48,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:40:48,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:40:48,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:40:48,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:40:48,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:40:48,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:40:48,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:40:48,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:40:48,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:40:48,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:40:48,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:40:48,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:40:48,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:40:48,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:40:48,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:40:48,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:40:48,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:40:48,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:40:48,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:40:48,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:40:48,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:40:48,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:40:48,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:40:48,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:40:48,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:40:48,257 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 23:40:48,289 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:40:48,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:40:48,290 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:40:48,291 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:40:48,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:40:48,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:40:48,293 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:40:48,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:40:48,293 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:40:48,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:40:48,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:40:48,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:40:48,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:40:48,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:40:48,295 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:40:48,295 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:40:48,295 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:40:48,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:40:48,296 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:40:48,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:40:48,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:40:48,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:40:48,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:40:48,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:40:48,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:40:48,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:40:48,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:40:48,298 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:40:48,299 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:40:48,299 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:40:48,299 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:40:48,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:40:48,300 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:40:48,300 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:40:48,300 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_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2021-10-28 23:40:48,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:40:48,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:40:48,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:40:48,758 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:40:48,759 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:40:48,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-benchs/nan_float.c [2021-10-28 23:40:48,846 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/data/f476eeeff/f131af8a3b3c43379441e51492aa97ab/FLAG56886e4e7 [2021-10-28 23:40:49,441 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:40:49,442 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/sv-benchmarks/c/float-benchs/nan_float.c [2021-10-28 23:40:49,452 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/data/f476eeeff/f131af8a3b3c43379441e51492aa97ab/FLAG56886e4e7 [2021-10-28 23:40:49,785 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/data/f476eeeff/f131af8a3b3c43379441e51492aa97ab [2021-10-28 23:40:49,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:40:49,791 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:40:49,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:40:49,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:40:49,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:40:49,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:40:49" (1/1) ... [2021-10-28 23:40:49,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a5b667e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:49, skipping insertion in model container [2021-10-28 23:40:49,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:40:49" (1/1) ... [2021-10-28 23:40:49,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:40:49,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:40:50,062 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_58838da1-6854-4b7a-83ec-0973cdf93921/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2021-10-28 23:40:50,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:40:50,113 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:40:50,132 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_58838da1-6854-4b7a-83ec-0973cdf93921/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2021-10-28 23:40:50,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:40:50,159 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:40:50,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:50 WrapperNode [2021-10-28 23:40:50,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:40:50,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:40:50,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:40:50,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:40:50,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:50" (1/1) ... [2021-10-28 23:40:50,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:50" (1/1) ... [2021-10-28 23:40:50,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:40:50,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:40:50,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:40:50,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:40:50,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:50" (1/1) ... [2021-10-28 23:40:50,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:50" (1/1) ... [2021-10-28 23:40:50,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:50" (1/1) ... [2021-10-28 23:40:50,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:50" (1/1) ... [2021-10-28 23:40:50,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:50" (1/1) ... [2021-10-28 23:40:50,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:50" (1/1) ... [2021-10-28 23:40:50,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:50" (1/1) ... [2021-10-28 23:40:50,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:40:50,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:40:50,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:40:50,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:40:50,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:50" (1/1) ... [2021-10-28 23:40:50,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:40:50,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:50,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:40:50,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:40:50,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:40:50,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:40:50,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:40:50,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:40:50,797 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:40:50,797 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 23:40:50,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:50 BoogieIcfgContainer [2021-10-28 23:40:50,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:40:50,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:40:50,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:40:50,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:40:50,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:40:49" (1/3) ... [2021-10-28 23:40:50,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a5345f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:40:50, skipping insertion in model container [2021-10-28 23:40:50,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:50" (2/3) ... [2021-10-28 23:40:50,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a5345f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:40:50, skipping insertion in model container [2021-10-28 23:40:50,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:50" (3/3) ... [2021-10-28 23:40:50,818 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float.c [2021-10-28 23:40:50,826 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:40:50,826 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:40:50,904 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:40:50,917 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 [2021-10-28 23:40:50,917 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:40:50,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-10-28 23:40:50,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-28 23:40:50,944 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:50,945 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-28 23:40:50,946 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:40:50,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:50,956 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-10-28 23:40:50,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:40:50,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329656360] [2021-10-28 23:40:50,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:50,983 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:40:50,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:40:50,993 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:40:51,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:40:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:40:51,118 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:40:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:40:51,221 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 23:40:51,224 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:40:51,225 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:40:51,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:51,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:40:51,447 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-28 23:40:51,451 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:40:51,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:40:51 BoogieIcfgContainer [2021-10-28 23:40:51,481 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:40:51,488 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:40:51,489 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:40:51,489 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:40:51,490 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:50" (3/4) ... [2021-10-28 23:40:51,493 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 23:40:51,549 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:40:51,550 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:40:51,562 INFO L168 Benchmark]: Toolchain (without parser) took 1760.62 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 35.7 MB in the beginning and 54.8 MB in the end (delta: -19.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:40:51,563 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 56.6 MB. Free memory is still 37.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:40:51,565 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.98 ms. Allocated memory is still 56.6 MB. Free memory was 35.4 MB in the beginning and 41.6 MB in the end (delta: -6.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:51,567 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.07 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 41.6 MB in the beginning and 58.9 MB in the end (delta: -17.3 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:51,568 INFO L168 Benchmark]: Boogie Preprocessor took 57.17 ms. Allocated memory is still 75.5 MB. Free memory was 58.9 MB in the beginning and 58.0 MB in the end (delta: 907.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:40:51,569 INFO L168 Benchmark]: RCFGBuilder took 458.43 ms. Allocated memory is still 75.5 MB. Free memory was 57.8 MB in the beginning and 48.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:51,574 INFO L168 Benchmark]: TraceAbstraction took 678.75 ms. Allocated memory is still 75.5 MB. Free memory was 48.4 MB in the beginning and 56.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:51,575 INFO L168 Benchmark]: Witness Printer took 62.56 ms. Allocated memory is still 75.5 MB. Free memory was 56.4 MB in the beginning and 54.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:40:51,580 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 56.6 MB. Free memory is still 37.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 375.98 ms. Allocated memory is still 56.6 MB. Free memory was 35.4 MB in the beginning and 41.6 MB in the end (delta: -6.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 112.07 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 41.6 MB in the beginning and 58.9 MB in the end (delta: -17.3 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.17 ms. Allocated memory is still 75.5 MB. Free memory was 58.9 MB in the beginning and 58.0 MB in the end (delta: 907.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 458.43 ms. Allocated memory is still 75.5 MB. Free memory was 57.8 MB in the beginning and 48.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 678.75 ms. Allocated memory is still 75.5 MB. Free memory was 48.4 MB in the beginning and 56.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * Witness Printer took 62.56 ms. Allocated memory is still 75.5 MB. Free memory was 56.4 MB in the beginning and 54.8 MB in the end (delta: 1.6 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 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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 proved your program to be incorrect! [2021-10-28 23:40:51,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58838da1-6854-4b7a-83ec-0973cdf93921/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...