./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN --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 cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:09:28,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:09:28,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:09:28,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:09:28,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:09:28,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:09:28,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:09:28,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:09:28,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:09:28,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:09:28,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:09:28,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:09:28,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:09:28,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:09:28,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:09:28,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:09:28,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:09:28,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:09:28,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:09:28,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:09:28,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:09:28,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:09:28,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:09:28,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:09:28,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:09:28,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:09:28,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:09:28,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:09:28,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:09:28,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:09:28,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:09:28,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:09:28,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:09:28,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:09:28,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:09:28,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:09:28,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:09:28,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:09:28,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:09:28,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:09:28,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:09:28,456 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:09:28,503 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:09:28,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:09:28,504 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:09:28,504 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:09:28,505 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:09:28,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:09:28,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:09:28,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:09:28,507 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:09:28,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:09:28,508 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:09:28,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:09:28,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:09:28,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:09:28,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:09:28,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:09:28,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:09:28,510 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:09:28,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:09:28,510 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:09:28,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:09:28,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:09:28,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:09:28,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:09:28,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:09:28,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:09:28,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:09:28,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:09:28,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:09:28,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:09:28,514 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:09:28,514 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:09:28,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:09:28,514 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_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c [2022-11-20 11:09:28,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:09:28,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:09:28,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:09:28,887 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:09:28,888 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:09:28,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2022-11-20 11:09:32,512 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:09:32,757 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:09:32,757 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2022-11-20 11:09:32,769 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/data/89371485a/1b89d352f32241ef888d9d2c4e6967f7/FLAG2d7d77446 [2022-11-20 11:09:32,792 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/data/89371485a/1b89d352f32241ef888d9d2c4e6967f7 [2022-11-20 11:09:32,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:09:32,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:09:32,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:09:32,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:09:32,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:09:32,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:09:32" (1/1) ... [2022-11-20 11:09:32,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c3d6b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:32, skipping insertion in model container [2022-11-20 11:09:32,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:09:32" (1/1) ... [2022-11-20 11:09:32,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:09:32,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:09:33,173 WARN L237 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_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c[4702,4715] [2022-11-20 11:09:33,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:09:33,190 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:09:33,247 WARN L237 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_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c[4702,4715] [2022-11-20 11:09:33,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:09:33,266 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:09:33,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:33 WrapperNode [2022-11-20 11:09:33,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:09:33,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:09:33,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:09:33,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:09:33,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:33" (1/1) ... [2022-11-20 11:09:33,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:33" (1/1) ... [2022-11-20 11:09:33,319 INFO L138 Inliner]: procedures = 18, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 254 [2022-11-20 11:09:33,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:09:33,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:09:33,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:09:33,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:09:33,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:33" (1/1) ... [2022-11-20 11:09:33,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:33" (1/1) ... [2022-11-20 11:09:33,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:33" (1/1) ... [2022-11-20 11:09:33,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:33" (1/1) ... [2022-11-20 11:09:33,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:33" (1/1) ... [2022-11-20 11:09:33,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:33" (1/1) ... [2022-11-20 11:09:33,359 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:33" (1/1) ... [2022-11-20 11:09:33,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:33" (1/1) ... [2022-11-20 11:09:33,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:09:33,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:09:33,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:09:33,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:09:33,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:33" (1/1) ... [2022-11-20 11:09:33,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:09:33,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:09:33,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:09:33,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:09:33,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:09:33,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:09:33,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:09:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-20 11:09:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:09:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-20 11:09:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:09:33,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:09:33,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:09:33,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:09:33,489 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2022-11-20 11:09:33,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2022-11-20 11:09:33,644 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:09:33,647 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:09:34,288 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:09:34,296 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:09:34,310 INFO L300 CfgBuilder]: Removed 34 assume(true) statements. [2022-11-20 11:09:34,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:09:34 BoogieIcfgContainer [2022-11-20 11:09:34,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:09:34,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:09:34,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:09:34,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:09:34,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:09:32" (1/3) ... [2022-11-20 11:09:34,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b73f35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:09:34, skipping insertion in model container [2022-11-20 11:09:34,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:33" (2/3) ... [2022-11-20 11:09:34,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b73f35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:09:34, skipping insertion in model container [2022-11-20 11:09:34,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:09:34" (3/3) ... [2022-11-20 11:09:34,329 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270a.c [2022-11-20 11:09:34,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:09:34,356 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:09:34,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:09:34,450 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@54c2c71d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:09:34,451 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:09:34,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 84 states have (on average 1.6904761904761905) internal successors, (142), 85 states have internal predecessors, (142), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:09:34,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 11:09:34,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:09:34,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:09:34,467 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:09:34,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:09:34,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1724151004, now seen corresponding path program 1 times [2022-11-20 11:09:34,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:09:34,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793884122] [2022-11-20 11:09:34,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:09:34,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:09:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:09:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:09:34,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:09:34,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793884122] [2022-11-20 11:09:34,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793884122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:09:34,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:09:34,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:09:34,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819172670] [2022-11-20 11:09:34,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:09:34,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:09:34,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:09:34,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:09:34,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:09:34,804 INFO L87 Difference]: Start difference. First operand has 89 states, 84 states have (on average 1.6904761904761905) internal successors, (142), 85 states have internal predecessors, (142), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2022-11-20 11:09:34,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:09:34,882 INFO L93 Difference]: Finished difference Result 176 states and 292 transitions. [2022-11-20 11:09:34,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:09:34,886 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-20 11:09:34,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:09:34,898 INFO L225 Difference]: With dead ends: 176 [2022-11-20 11:09:34,898 INFO L226 Difference]: Without dead ends: 86 [2022-11-20 11:09:34,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:09:34,910 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:09:34,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:09:34,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-20 11:09:34,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-11-20 11:09:34,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.2682926829268293) internal successors, (104), 82 states have internal predecessors, (104), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:09:34,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 108 transitions. [2022-11-20 11:09:34,984 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 108 transitions. Word has length 16 [2022-11-20 11:09:34,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:09:34,986 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 108 transitions. [2022-11-20 11:09:34,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2022-11-20 11:09:34,988 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 108 transitions. [2022-11-20 11:09:34,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 11:09:34,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:09:34,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:09:34,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:09:34,992 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:09:34,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:09:34,993 INFO L85 PathProgramCache]: Analyzing trace with hash -927967701, now seen corresponding path program 1 times [2022-11-20 11:09:34,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:09:34,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9818575] [2022-11-20 11:09:34,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:09:34,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:09:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:09:35,168 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:09:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:09:35,253 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:09:35,253 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:09:35,256 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 11:09:35,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:09:35,263 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-20 11:09:35,268 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:09:35,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:09:35 BoogieIcfgContainer [2022-11-20 11:09:35,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:09:35,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:09:35,304 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:09:35,305 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:09:35,305 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:09:34" (3/4) ... [2022-11-20 11:09:35,309 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:09:35,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:09:35,311 INFO L158 Benchmark]: Toolchain (without parser) took 2512.22ms. Allocated memory is still 144.7MB. Free memory was 102.6MB in the beginning and 41.7MB in the end (delta: 60.9MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. [2022-11-20 11:09:35,311 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory was 77.6MB in the beginning and 77.5MB in the end (delta: 117.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:09:35,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.53ms. Allocated memory is still 144.7MB. Free memory was 102.1MB in the beginning and 108.2MB in the end (delta: -6.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:09:35,313 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.92ms. Allocated memory is still 144.7MB. Free memory was 108.2MB in the beginning and 105.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:09:35,314 INFO L158 Benchmark]: Boogie Preprocessor took 44.70ms. Allocated memory is still 144.7MB. Free memory was 105.6MB in the beginning and 103.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:09:35,314 INFO L158 Benchmark]: RCFGBuilder took 947.54ms. Allocated memory is still 144.7MB. Free memory was 103.5MB in the beginning and 77.8MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-20 11:09:35,315 INFO L158 Benchmark]: TraceAbstraction took 987.10ms. Allocated memory is still 144.7MB. Free memory was 76.8MB in the beginning and 42.2MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-20 11:09:35,316 INFO L158 Benchmark]: Witness Printer took 5.89ms. Allocated memory is still 144.7MB. Free memory was 42.2MB in the beginning and 41.7MB in the end (delta: 519.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:09:35,319 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory was 77.6MB in the beginning and 77.5MB in the end (delta: 117.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 464.53ms. Allocated memory is still 144.7MB. Free memory was 102.1MB in the beginning and 108.2MB in the end (delta: -6.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.92ms. Allocated memory is still 144.7MB. Free memory was 108.2MB in the beginning and 105.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.70ms. Allocated memory is still 144.7MB. Free memory was 105.6MB in the beginning and 103.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 947.54ms. Allocated memory is still 144.7MB. Free memory was 103.5MB in the beginning and 77.8MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 987.10ms. Allocated memory is still 144.7MB. Free memory was 76.8MB in the beginning and 42.2MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 5.89ms. Allocated memory is still 144.7MB. Free memory was 42.2MB in the beginning and 41.7MB in the end (delta: 519.7kB). There was no memory consumed. Max. memory is 16.1GB. * 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: 236]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 120, overapproximation of bitwiseAnd at line 220. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L231] float x = 1.0f / 0.0f; [L232] float y = __VERIFIER_nondet_float(); [L233] CALL, EXPR __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934610, b=8589934611, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L88] ieee_float_shape_type gf_u; [L89] gf_u.value = (x) [L90] EXPR gf_u.word [L90] (ha) = gf_u.word [L92] ha &= 0x7fffffffL VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934610, b=8589934611, ha=251658241, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (y) [L96] EXPR gf_u.word [L96] (hb) = gf_u.word [L98] hb &= 0x7fffffffL VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934610, b=8589934611, ha=251658241, hb=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L99] COND FALSE !(hb > ha) [L106] a = x [L107] b = y VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934610, b=8589934611, ha=251658241, hb=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L110] ieee_float_shape_type sf_u; [L111] sf_u.word = (ha) [L112] EXPR sf_u.value [L112] (a) = sf_u.value [L115] ieee_float_shape_type sf_u; [L116] sf_u.word = (hb) [L117] EXPR sf_u.value [L117] (b) = sf_u.value [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934612, b=8589934613, ha=251658241, hb=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L233] RET, EXPR __ieee754_hypotf(x, y) [L233] float res = __ieee754_hypotf(x, y); [L235] CALL, EXPR isinf_float(res) [L214] __int32_t ix; VAL [\old(x)=8589934614, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934614] [L216] ieee_float_shape_type gf_u; [L217] gf_u.value = (x) [L218] EXPR gf_u.word [L218] (ix) = gf_u.word [L220] ix &= 0x7fffffff [L221] return ((ix) == 0x7f800000L); VAL [\old(x)=8589934614, \result=0, ix=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934614] [L235] RET, EXPR isinf_float(res) [L235] COND TRUE !isinf_float(res) [L236] reach_error() VAL [one_sqrt=1, res=8589934614, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 111 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 111 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 11:09:35,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN --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 cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:09:38,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:09:38,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:09:38,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:09:38,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:09:38,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:09:38,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:09:38,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:09:38,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:09:38,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:09:38,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:09:38,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:09:38,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:09:38,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:09:38,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:09:38,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:09:38,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:09:38,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:09:38,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:09:38,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:09:38,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:09:38,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:09:38,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:09:38,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:09:38,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:09:38,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:09:38,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:09:38,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:09:38,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:09:38,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:09:38,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:09:38,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:09:38,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:09:38,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:09:38,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:09:38,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:09:38,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:09:38,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:09:38,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:09:38,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:09:38,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:09:38,226 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-20 11:09:38,275 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:09:38,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:09:38,276 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:09:38,276 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:09:38,277 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:09:38,277 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:09:38,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:09:38,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:09:38,278 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:09:38,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:09:38,279 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:09:38,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:09:38,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:09:38,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:09:38,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:09:38,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:09:38,280 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:09:38,280 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:09:38,281 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:09:38,281 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:09:38,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:09:38,281 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:09:38,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:09:38,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:09:38,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:09:38,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:09:38,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:09:38,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:09:38,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:09:38,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:09:38,284 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:09:38,284 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:09:38,284 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:09:38,285 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:09:38,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:09:38,285 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:09:38,285 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_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c [2022-11-20 11:09:38,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:09:38,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:09:38,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:09:38,803 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:09:38,803 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:09:38,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2022-11-20 11:09:42,269 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:09:42,585 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:09:42,586 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2022-11-20 11:09:42,595 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/data/03e93c40e/859fdbf861ed4c7c9262ec15a7cf147c/FLAG6a34af4fc [2022-11-20 11:09:42,613 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/data/03e93c40e/859fdbf861ed4c7c9262ec15a7cf147c [2022-11-20 11:09:42,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:09:42,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:09:42,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:09:42,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:09:42,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:09:42,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:09:42" (1/1) ... [2022-11-20 11:09:42,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1baa90ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:42, skipping insertion in model container [2022-11-20 11:09:42,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:09:42" (1/1) ... [2022-11-20 11:09:42,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:09:42,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:09:43,081 WARN L237 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_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c[4702,4715] [2022-11-20 11:09:43,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:09:43,122 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:09:43,215 WARN L237 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_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c[4702,4715] [2022-11-20 11:09:43,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:09:43,236 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:09:43,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:43 WrapperNode [2022-11-20 11:09:43,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:09:43,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:09:43,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:09:43,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:09:43,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:43" (1/1) ... [2022-11-20 11:09:43,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:43" (1/1) ... [2022-11-20 11:09:43,332 INFO L138 Inliner]: procedures = 21, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 254 [2022-11-20 11:09:43,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:09:43,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:09:43,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:09:43,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:09:43,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:43" (1/1) ... [2022-11-20 11:09:43,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:43" (1/1) ... [2022-11-20 11:09:43,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:43" (1/1) ... [2022-11-20 11:09:43,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:43" (1/1) ... [2022-11-20 11:09:43,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:43" (1/1) ... [2022-11-20 11:09:43,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:43" (1/1) ... [2022-11-20 11:09:43,430 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:43" (1/1) ... [2022-11-20 11:09:43,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:43" (1/1) ... [2022-11-20 11:09:43,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:09:43,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:09:43,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:09:43,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:09:43,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:43" (1/1) ... [2022-11-20 11:09:43,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:09:43,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:09:43,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:09:43,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:09:43,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:09:43,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:09:43,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:09:43,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-20 11:09:43,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:09:43,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:09:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:09:43,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-20 11:09:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:09:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:09:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2022-11-20 11:09:43,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2022-11-20 11:09:43,767 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:09:43,769 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:09:47,986 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:09:47,994 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:09:47,994 INFO L300 CfgBuilder]: Removed 34 assume(true) statements. [2022-11-20 11:09:47,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:09:47 BoogieIcfgContainer [2022-11-20 11:09:47,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:09:48,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:09:48,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:09:48,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:09:48,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:09:42" (1/3) ... [2022-11-20 11:09:48,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba11bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:09:48, skipping insertion in model container [2022-11-20 11:09:48,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:43" (2/3) ... [2022-11-20 11:09:48,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba11bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:09:48, skipping insertion in model container [2022-11-20 11:09:48,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:09:47" (3/3) ... [2022-11-20 11:09:48,008 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270a.c [2022-11-20 11:09:48,032 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:09:48,033 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:09:48,093 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:09:48,101 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6336c7a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:09:48,101 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:09:48,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 84 states have (on average 1.6904761904761905) internal successors, (142), 85 states have internal predecessors, (142), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:09:48,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 11:09:48,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:09:48,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:09:48,141 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:09:48,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:09:48,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1724151004, now seen corresponding path program 1 times [2022-11-20 11:09:48,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:09:48,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571551558] [2022-11-20 11:09:48,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:09:48,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:09:48,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:09:48,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:09:48,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 11:09:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:09:48,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 11:09:48,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:09:48,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:09:48,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:09:48,427 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:09:48,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571551558] [2022-11-20 11:09:48,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571551558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:09:48,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:09:48,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:09:48,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640063550] [2022-11-20 11:09:48,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:09:48,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:09:48,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:09:48,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:09:48,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:09:48,500 INFO L87 Difference]: Start difference. First operand has 89 states, 84 states have (on average 1.6904761904761905) internal successors, (142), 85 states have internal predecessors, (142), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2022-11-20 11:09:48,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:09:48,545 INFO L93 Difference]: Finished difference Result 176 states and 292 transitions. [2022-11-20 11:09:48,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:09:48,548 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-20 11:09:48,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:09:48,558 INFO L225 Difference]: With dead ends: 176 [2022-11-20 11:09:48,559 INFO L226 Difference]: Without dead ends: 86 [2022-11-20 11:09:48,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:09:48,567 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:09:48,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:09:48,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-20 11:09:48,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-11-20 11:09:48,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.2682926829268293) internal successors, (104), 82 states have internal predecessors, (104), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:09:48,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 108 transitions. [2022-11-20 11:09:48,621 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 108 transitions. Word has length 16 [2022-11-20 11:09:48,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:09:48,621 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 108 transitions. [2022-11-20 11:09:48,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2022-11-20 11:09:48,622 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 108 transitions. [2022-11-20 11:09:48,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 11:09:48,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:09:48,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:09:48,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:09:48,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:09:48,840 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:09:48,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:09:48,841 INFO L85 PathProgramCache]: Analyzing trace with hash -927967701, now seen corresponding path program 1 times [2022-11-20 11:09:48,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:09:48,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106808343] [2022-11-20 11:09:48,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:09:48,843 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:09:48,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:09:48,845 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:09:48,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 11:09:49,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 139 [2022-11-20 11:09:49,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:09:49,251 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-20 11:09:49,255 INFO L158 Benchmark]: Toolchain (without parser) took 6637.02ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 27.2MB in the beginning and 39.7MB in the end (delta: -12.5MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2022-11-20 11:09:49,256 INFO L158 Benchmark]: CDTParser took 0.93ms. Allocated memory is still 60.8MB. Free memory is still 39.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:09:49,256 INFO L158 Benchmark]: CACSL2BoogieTranslator took 618.06ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 27.0MB in the beginning and 53.7MB in the end (delta: -26.7MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2022-11-20 11:09:49,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.85ms. Allocated memory is still 86.0MB. Free memory was 53.7MB in the beginning and 51.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:09:49,257 INFO L158 Benchmark]: Boogie Preprocessor took 106.71ms. Allocated memory is still 86.0MB. Free memory was 51.4MB in the beginning and 48.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:09:49,258 INFO L158 Benchmark]: RCFGBuilder took 4552.46ms. Allocated memory is still 86.0MB. Free memory was 48.5MB in the beginning and 42.8MB in the end (delta: 5.7MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2022-11-20 11:09:49,265 INFO L158 Benchmark]: TraceAbstraction took 1254.28ms. Allocated memory is still 86.0MB. Free memory was 42.4MB in the beginning and 39.7MB in the end (delta: 2.7MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2022-11-20 11:09:49,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93ms. Allocated memory is still 60.8MB. Free memory is still 39.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 618.06ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 27.0MB in the beginning and 53.7MB in the end (delta: -26.7MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.85ms. Allocated memory is still 86.0MB. Free memory was 53.7MB in the beginning and 51.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.71ms. Allocated memory is still 86.0MB. Free memory was 51.4MB in the beginning and 48.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 4552.46ms. Allocated memory is still 86.0MB. Free memory was 48.5MB in the beginning and 42.8MB in the end (delta: 5.7MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1254.28ms. Allocated memory is still 86.0MB. Free memory was 42.4MB in the beginning and 39.7MB in the end (delta: 2.7MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-20 11:09:49,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35551caa-91a9-4cb1-8af2-06f6acd8aaa7/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3) with exit command (exit)) Received EOF on stdin. No stderr output.