./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8 --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 bafd616607c3b26e5c116d6e80df383a1448d022ecfba32980ae94deeb4f2706 --- 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-2329fc7 [2022-12-13 20:42:56,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:42:56,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:42:56,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:42:56,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:42:56,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:42:56,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:42:56,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:42:56,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:42:56,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:42:56,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:42:56,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:42:56,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:42:56,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:42:56,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:42:56,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:42:56,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:42:56,487 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:42:56,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:42:56,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:42:56,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:42:56,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:42:56,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:42:56,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:42:56,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:42:56,496 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:42:56,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:42:56,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:42:56,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:42:56,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:42:56,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:42:56,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:42:56,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:42:56,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:42:56,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:42:56,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:42:56,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:42:56,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:42:56,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:42:56,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:42:56,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:42:56,503 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 20:42:56,517 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:42:56,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:42:56,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:42:56,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:42:56,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:42:56,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:42:56,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:42:56,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:42:56,519 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:42:56,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:42:56,519 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:42:56,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:42:56,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:42:56,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:42:56,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:42:56,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:42:56,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:42:56,520 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:42:56,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:42:56,520 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:42:56,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:42:56,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:42:56,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:42:56,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:42:56,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:42:56,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:42:56,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:42:56,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:42:56,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:42:56,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:42:56,521 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:42:56,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:42:56,521 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:42:56,521 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:42:56,522 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:42:56,522 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bafd616607c3b26e5c116d6e80df383a1448d022ecfba32980ae94deeb4f2706 [2022-12-13 20:42:56,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:42:56,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:42:56,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:42:56,705 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:42:56,706 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:42:56,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2022-12-13 20:42:59,228 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:42:59,365 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:42:59,365 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2022-12-13 20:42:59,369 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/data/7db00a822/c386bb49b83143998e61a81a8ecea645/FLAG666c718f8 [2022-12-13 20:42:59,804 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/data/7db00a822/c386bb49b83143998e61a81a8ecea645 [2022-12-13 20:42:59,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:42:59,808 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:42:59,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:42:59,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:42:59,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:42:59,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:42:59" (1/1) ... [2022-12-13 20:42:59,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14121aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:59, skipping insertion in model container [2022-12-13 20:42:59,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:42:59" (1/1) ... [2022-12-13 20:42:59,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:42:59,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:42:59,926 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_a074713d-3bf3-49db-ac0a-3b194317a0a9/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c[380,393] [2022-12-13 20:42:59,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:42:59,939 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:42:59,952 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_a074713d-3bf3-49db-ac0a-3b194317a0a9/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c[380,393] [2022-12-13 20:42:59,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:42:59,965 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:42:59,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:59 WrapperNode [2022-12-13 20:42:59,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:42:59,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:42:59,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:42:59,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:42:59,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:59" (1/1) ... [2022-12-13 20:42:59,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:59" (1/1) ... [2022-12-13 20:42:59,991 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-12-13 20:42:59,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:42:59,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:42:59,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:42:59,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:42:59,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:59" (1/1) ... [2022-12-13 20:42:59,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:59" (1/1) ... [2022-12-13 20:42:59,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:59" (1/1) ... [2022-12-13 20:42:59,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:59" (1/1) ... [2022-12-13 20:43:00,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:59" (1/1) ... [2022-12-13 20:43:00,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:59" (1/1) ... [2022-12-13 20:43:00,004 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:59" (1/1) ... [2022-12-13 20:43:00,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:59" (1/1) ... [2022-12-13 20:43:00,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:43:00,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:43:00,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:43:00,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:43:00,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:59" (1/1) ... [2022-12-13 20:43:00,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:43:00,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:43:00,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:43:00,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:43:00,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:43:00,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:43:00,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:43:00,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:43:00,120 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:43:00,121 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:43:00,172 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:43:00,177 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:43:00,177 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:43:00,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:43:00 BoogieIcfgContainer [2022-12-13 20:43:00,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:43:00,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:43:00,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:43:00,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:43:00,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:42:59" (1/3) ... [2022-12-13 20:43:00,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500d27c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:43:00, skipping insertion in model container [2022-12-13 20:43:00,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:59" (2/3) ... [2022-12-13 20:43:00,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500d27c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:43:00, skipping insertion in model container [2022-12-13 20:43:00,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:43:00" (3/3) ... [2022-12-13 20:43:00,185 INFO L112 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2022-12-13 20:43:00,202 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:43:00,202 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 20:43:00,242 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:43:00,248 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;@70d5f3e9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:43:00,248 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 20:43:00,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:43:00,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-13 20:43:00,257 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:43:00,258 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-13 20:43:00,258 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:43:00,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:43:00,263 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-12-13 20:43:00,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:43:00,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830502878] [2022-12-13 20:43:00,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:43:00,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:43:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:43:00,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:43:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:43:00,362 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:43:00,363 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:43:00,364 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 20:43:00,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:43:00,370 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 20:43:00,373 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:43:00,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:43:00 BoogieIcfgContainer [2022-12-13 20:43:00,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:43:00,385 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:43:00,385 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:43:00,385 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:43:00,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:43:00" (3/4) ... [2022-12-13 20:43:00,388 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:43:00,388 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:43:00,389 INFO L158 Benchmark]: Toolchain (without parser) took 580.95ms. Allocated memory is still 138.4MB. Free memory was 105.6MB in the beginning and 70.4MB in the end (delta: 35.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-12-13 20:43:00,390 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 138.4MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:43:00,390 INFO L158 Benchmark]: CACSL2BoogieTranslator took 157.06ms. Allocated memory is still 138.4MB. Free memory was 105.4MB in the beginning and 95.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 20:43:00,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.41ms. Allocated memory is still 138.4MB. Free memory was 95.0MB in the beginning and 93.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:43:00,391 INFO L158 Benchmark]: Boogie Preprocessor took 14.07ms. Allocated memory is still 138.4MB. Free memory was 93.4MB in the beginning and 92.8MB in the end (delta: 612.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:43:00,391 INFO L158 Benchmark]: RCFGBuilder took 172.66ms. Allocated memory is still 138.4MB. Free memory was 92.3MB in the beginning and 83.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 20:43:00,392 INFO L158 Benchmark]: TraceAbstraction took 204.11ms. Allocated memory is still 138.4MB. Free memory was 83.4MB in the beginning and 70.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 20:43:00,392 INFO L158 Benchmark]: Witness Printer took 3.71ms. Allocated memory is still 138.4MB. Free memory was 70.9MB in the beginning and 70.4MB in the end (delta: 492.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:43:00,394 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 138.4MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 157.06ms. Allocated memory is still 138.4MB. Free memory was 105.4MB in the beginning and 95.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.41ms. Allocated memory is still 138.4MB. Free memory was 95.0MB in the beginning and 93.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.07ms. Allocated memory is still 138.4MB. Free memory was 93.4MB in the beginning and 92.8MB in the end (delta: 612.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 172.66ms. Allocated memory is still 138.4MB. Free memory was 92.3MB in the beginning and 83.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 204.11ms. Allocated memory is still 138.4MB. Free memory was 83.4MB in the beginning and 70.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 3.71ms. Allocated memory is still 138.4MB. Free memory was 70.9MB in the beginning and 70.4MB in the end (delta: 492.7kB). 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: 11]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 11, overapproximation of someUnaryDOUBLEoperation at line 8, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L7] float f = -0x1.0p-127f; [L8] double d = -0x1.0p-127; [L9] double fp = (double)f; VAL [f=53, fp=53] [L11] COND TRUE !(d == fp) VAL [f=53, fp=53] [L11] reach_error() VAL [f=53, fp=53] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 20:43:00,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/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_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8 --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 bafd616607c3b26e5c116d6e80df383a1448d022ecfba32980ae94deeb4f2706 --- 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-2329fc7 [2022-12-13 20:43:01,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:43:01,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:43:01,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:43:01,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:43:01,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:43:01,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:43:01,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:43:01,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:43:01,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:43:01,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:43:01,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:43:01,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:43:01,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:43:01,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:43:01,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:43:01,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:43:01,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:43:01,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:43:01,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:43:01,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:43:01,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:43:01,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:43:01,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:43:01,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:43:01,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:43:01,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:43:01,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:43:01,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:43:01,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:43:01,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:43:01,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:43:01,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:43:01,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:43:01,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:43:01,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:43:01,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:43:01,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:43:01,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:43:01,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:43:01,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:43:01,938 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 20:43:01,956 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:43:01,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:43:01,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:43:01,956 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:43:01,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:43:01,957 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:43:01,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:43:01,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:43:01,957 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:43:01,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:43:01,958 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:43:01,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:43:01,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:43:01,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:43:01,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:43:01,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:43:01,958 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 20:43:01,958 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 20:43:01,959 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 20:43:01,959 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:43:01,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:43:01,959 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:43:01,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:43:01,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:43:01,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:43:01,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:43:01,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:43:01,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:43:01,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:43:01,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:43:01,960 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 20:43:01,960 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 20:43:01,960 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:43:01,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:43:01,961 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:43:01,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:43:01,961 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 20:43:01,961 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:43:01,961 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bafd616607c3b26e5c116d6e80df383a1448d022ecfba32980ae94deeb4f2706 [2022-12-13 20:43:02,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:43:02,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:43:02,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:43:02,190 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:43:02,191 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:43:02,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2022-12-13 20:43:04,712 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:43:04,825 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:43:04,825 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2022-12-13 20:43:04,830 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/data/21444019e/b87134a1c75a4b8eb46237cbf20f2157/FLAG29c467f19 [2022-12-13 20:43:04,841 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/data/21444019e/b87134a1c75a4b8eb46237cbf20f2157 [2022-12-13 20:43:04,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:43:04,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:43:04,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:43:04,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:43:04,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:43:04,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:43:04" (1/1) ... [2022-12-13 20:43:04,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59043cbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:43:04, skipping insertion in model container [2022-12-13 20:43:04,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:43:04" (1/1) ... [2022-12-13 20:43:04,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:43:04,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:43:04,985 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_a074713d-3bf3-49db-ac0a-3b194317a0a9/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c[380,393] [2022-12-13 20:43:04,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:43:05,003 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:43:05,022 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_a074713d-3bf3-49db-ac0a-3b194317a0a9/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c[380,393] [2022-12-13 20:43:05,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:43:05,035 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:43:05,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:43:05 WrapperNode [2022-12-13 20:43:05,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:43:05,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:43:05,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:43:05,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:43:05,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:43:05" (1/1) ... [2022-12-13 20:43:05,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:43:05" (1/1) ... [2022-12-13 20:43:05,060 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-12-13 20:43:05,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:43:05,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:43:05,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:43:05,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:43:05,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:43:05" (1/1) ... [2022-12-13 20:43:05,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:43:05" (1/1) ... [2022-12-13 20:43:05,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:43:05" (1/1) ... [2022-12-13 20:43:05,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:43:05" (1/1) ... [2022-12-13 20:43:05,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:43:05" (1/1) ... [2022-12-13 20:43:05,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:43:05" (1/1) ... [2022-12-13 20:43:05,077 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:43:05" (1/1) ... [2022-12-13 20:43:05,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:43:05" (1/1) ... [2022-12-13 20:43:05,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:43:05,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:43:05,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:43:05,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:43:05,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:43:05" (1/1) ... [2022-12-13 20:43:05,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:43:05,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:43:05,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:43:05,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:43:05,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:43:05,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:43:05,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:43:05,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 20:43:05,205 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:43:05,207 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:43:05,331 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:43:05,337 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:43:05,337 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:43:05,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:43:05 BoogieIcfgContainer [2022-12-13 20:43:05,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:43:05,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:43:05,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:43:05,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:43:05,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:43:04" (1/3) ... [2022-12-13 20:43:05,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b3acfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:43:05, skipping insertion in model container [2022-12-13 20:43:05,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:43:05" (2/3) ... [2022-12-13 20:43:05,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b3acfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:43:05, skipping insertion in model container [2022-12-13 20:43:05,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:43:05" (3/3) ... [2022-12-13 20:43:05,349 INFO L112 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2022-12-13 20:43:05,364 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:43:05,364 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 20:43:05,404 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:43:05,410 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;@55a4e802, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:43:05,411 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 20:43:05,414 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:43:05,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-13 20:43:05,419 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:43:05,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-13 20:43:05,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:43:05,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:43:05,425 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-12-13 20:43:05,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:43:05,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515278779] [2022-12-13 20:43:05,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:43:05,436 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 [2022-12-13 20:43:05,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:43:05,437 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 20:43:05,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:43:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:43:05,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 20:43:05,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:43:05,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:43:05,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:43:05,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:43:05,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515278779] [2022-12-13 20:43:05,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515278779] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:43:05,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:43:05,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:43:05,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704326580] [2022-12-13 20:43:05,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:43:05,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:43:05,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:43:05,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:43:05,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:43:05,614 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-12-13 20:43:05,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:43:05,628 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2022-12-13 20:43:05,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:43:05,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-12-13 20:43:05,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:43:05,634 INFO L225 Difference]: With dead ends: 13 [2022-12-13 20:43:05,634 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 20:43:05,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:43:05,639 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:43:05,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:43:05,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 20:43:05,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 20:43:05,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-12-13 20:43:05,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 20:43:05,658 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-12-13 20:43:05,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:43:05,658 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 20:43:05,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-12-13 20:43:05,658 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 20:43:05,658 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 20:43:05,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 20:43:05,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:43:05,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:43:05,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 20:43:05,906 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 20:43:05,907 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 20:43:05,908 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 20:43:05,908 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2022-12-13 20:43:05,909 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2022-12-13 20:43:05,910 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2022-12-13 20:43:05,910 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 20:43:05,912 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 5 14) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (and (= (fp.neg ((_ to_fp 11 53) currentRoundingMode (/ 1.0 170141183460469231731687303715884105728.0))) |ULTIMATE.start_main_~d~0#1|) (= |ULTIMATE.start_main_~fp~0#1| ((_ to_fp 11 53) currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 170141183460469231731687303715884105728.0))))))) [2022-12-13 20:43:05,913 INFO L899 garLoopResultBuilder]: For program point L11-3(line 11) no Hoare annotation was computed. [2022-12-13 20:43:05,922 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 20:43:05,927 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:43:05,937 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-12-13 20:43:05,938 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-12-13 20:43:05,938 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-12-13 20:43:05,942 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-12-13 20:43:05,942 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-12-13 20:43:05,942 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-12-13 20:43:05,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:43:05 BoogieIcfgContainer [2022-12-13 20:43:05,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:43:05,944 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:43:05,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:43:05,944 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:43:05,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:43:05" (3/4) ... [2022-12-13 20:43:05,947 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 20:43:05,958 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-13 20:43:05,959 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 20:43:05,959 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 20:43:05,959 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 20:43:05,979 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)) == d && fp == ~to_fp~LONGDOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)))) [2022-12-13 20:43:05,983 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:43:05,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:43:05,983 INFO L158 Benchmark]: Toolchain (without parser) took 1139.21ms. Allocated memory is still 71.3MB. Free memory was 44.6MB in the beginning and 49.2MB in the end (delta: -4.6MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2022-12-13 20:43:05,983 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 50.3MB. Free memory is still 28.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:43:05,984 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.16ms. Allocated memory is still 71.3MB. Free memory was 44.4MB in the beginning and 51.1MB in the end (delta: -6.7MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2022-12-13 20:43:05,984 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.48ms. Allocated memory is still 71.3MB. Free memory was 51.1MB in the beginning and 49.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:43:05,984 INFO L158 Benchmark]: Boogie Preprocessor took 19.68ms. Allocated memory is still 71.3MB. Free memory was 49.5MB in the beginning and 48.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:43:05,985 INFO L158 Benchmark]: RCFGBuilder took 258.20ms. Allocated memory is still 71.3MB. Free memory was 48.3MB in the beginning and 39.7MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 20:43:05,985 INFO L158 Benchmark]: TraceAbstraction took 601.48ms. Allocated memory is still 71.3MB. Free memory was 39.1MB in the beginning and 39.0MB in the end (delta: 59.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:43:05,985 INFO L158 Benchmark]: Witness Printer took 39.11ms. Allocated memory is still 71.3MB. Free memory was 39.0MB in the beginning and 49.2MB in the end (delta: -10.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:43:05,988 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 50.3MB. Free memory is still 28.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 191.16ms. Allocated memory is still 71.3MB. Free memory was 44.4MB in the beginning and 51.1MB in the end (delta: -6.7MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.48ms. Allocated memory is still 71.3MB. Free memory was 51.1MB in the beginning and 49.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.68ms. Allocated memory is still 71.3MB. Free memory was 49.5MB in the beginning and 48.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 258.20ms. Allocated memory is still 71.3MB. Free memory was 48.3MB in the beginning and 39.7MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 601.48ms. Allocated memory is still 71.3MB. Free memory was 39.1MB in the beginning and 39.0MB in the end (delta: 59.1kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 39.11ms. Allocated memory is still 71.3MB. Free memory was 39.0MB in the beginning and 49.2MB in the end (delta: -10.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * 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 - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 5 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 16 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 1 QuantifiedInterpolants, 18 SizeOfPredicates, 4 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant [2022-12-13 20:43:05,995 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-12-13 20:43:05,996 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-12-13 20:43:05,996 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-12-13 20:43:05,996 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-12-13 20:43:05,996 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-12-13 20:43:05,996 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)) == d && fp == ~to_fp~LONGDOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)))) RESULT: Ultimate proved your program to be correct! [2022-12-13 20:43:06,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a074713d-3bf3-49db-ac0a-3b194317a0a9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE