./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/square_8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y --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 80c3dca82feaee551f8126572f1dcc09ca65938303a72a158f2c77643864b20a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:59:58,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:59:58,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:59:58,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:59:58,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:59:58,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:59:58,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:59:58,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:59:58,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:59:58,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:59:58,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:59:58,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:59:58,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:59:58,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:59:58,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:59:58,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:59:58,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:59:58,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:59:58,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:59:58,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:59:58,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:59:58,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:59:58,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:59:58,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:59:58,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:59:58,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:59:58,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:59:58,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:59:58,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:59:58,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:59:58,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:59:58,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:59:58,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:59:58,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:59:58,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:59:58,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:59:58,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:59:58,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:59:58,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:59:58,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:59:58,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:59:58,889 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 17:59:58,928 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:59:58,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:59:58,929 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:59:58,929 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:59:58,930 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:59:58,930 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:59:58,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:59:58,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:59:58,931 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:59:58,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:59:58,933 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:59:58,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:59:58,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:59:58,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:59:58,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:59:58,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:59:58,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:59:58,934 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:59:58,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:59:58,935 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:59:58,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:59:58,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:59:58,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:59:58,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:59:58,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:59:58,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:59:58,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:59:58,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:59:58,937 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:59:58,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:59:58,939 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:59:58,939 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:59:58,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:59:58,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:59:58,940 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_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80c3dca82feaee551f8126572f1dcc09ca65938303a72a158f2c77643864b20a [2021-11-13 17:59:59,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:59:59,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:59:59,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:59:59,260 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:59:59,267 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:59:59,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/floats-cdfpl/square_8.i [2021-11-13 17:59:59,383 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/data/0fefee084/badd9208d4aa4674b637d8455ef1a04a/FLAG62609f5ec [2021-11-13 17:59:59,853 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:59:59,854 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/sv-benchmarks/c/floats-cdfpl/square_8.i [2021-11-13 17:59:59,860 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/data/0fefee084/badd9208d4aa4674b637d8455ef1a04a/FLAG62609f5ec [2021-11-13 18:00:00,232 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/data/0fefee084/badd9208d4aa4674b637d8455ef1a04a [2021-11-13 18:00:00,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:00:00,236 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:00:00,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:00:00,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:00:00,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:00:00,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:00:00" (1/1) ... [2021-11-13 18:00:00,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ac33541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:00, skipping insertion in model container [2021-11-13 18:00:00,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:00:00" (1/1) ... [2021-11-13 18:00:00,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:00:00,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:00:00,408 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/sv-benchmarks/c/floats-cdfpl/square_8.i[1625,1638] [2021-11-13 18:00:00,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:00:00,421 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:00:00,436 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/sv-benchmarks/c/floats-cdfpl/square_8.i[1625,1638] [2021-11-13 18:00:00,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:00:00,448 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:00:00,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:00 WrapperNode [2021-11-13 18:00:00,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:00:00,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:00:00,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:00:00,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:00:00,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:00" (1/1) ... [2021-11-13 18:00:00,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:00" (1/1) ... [2021-11-13 18:00:00,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:00:00,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:00:00,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:00:00,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:00:00,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:00" (1/1) ... [2021-11-13 18:00:00,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:00" (1/1) ... [2021-11-13 18:00:00,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:00" (1/1) ... [2021-11-13 18:00:00,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:00" (1/1) ... [2021-11-13 18:00:00,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:00" (1/1) ... [2021-11-13 18:00:00,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:00" (1/1) ... [2021-11-13 18:00:00,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:00" (1/1) ... [2021-11-13 18:00:00,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:00:00,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:00:00,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:00:00,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:00:00,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:00" (1/1) ... [2021-11-13 18:00:00,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:00:00,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:00:00,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:00:00,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:00:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:00:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:00:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:00:00,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:00:00,810 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:00:00,811 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:00:00,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:00:00 BoogieIcfgContainer [2021-11-13 18:00:00,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:00:00,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:00:00,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:00:00,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:00:00,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:00:00" (1/3) ... [2021-11-13 18:00:00,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196a42a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:00:00, skipping insertion in model container [2021-11-13 18:00:00,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:00" (2/3) ... [2021-11-13 18:00:00,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196a42a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:00:00, skipping insertion in model container [2021-11-13 18:00:00,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:00:00" (3/3) ... [2021-11-13 18:00:00,826 INFO L111 eAbstractionObserver]: Analyzing ICFG square_8.i [2021-11-13 18:00:00,836 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:00:00,837 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:00:00,903 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:00:00,910 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:00:00,910 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:00:00,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:00:00,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 18:00:00,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:00:00,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 18:00:00,930 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:00:00,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:00:00,935 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-11-13 18:00:00,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:00:00,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382809719] [2021-11-13 18:00:00,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:00:00,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:00:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:00:01,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:00:01,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:00:01,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382809719] [2021-11-13 18:00:01,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382809719] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:00:01,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:00:01,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:00:01,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924972241] [2021-11-13 18:00:01,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:00:01,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 18:00:01,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:00:01,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 18:00:01,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:00:01,118 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:00:01,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:00:01,130 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-11-13 18:00:01,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:00:01,132 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-11-13 18:00:01,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:00:01,139 INFO L225 Difference]: With dead ends: 19 [2021-11-13 18:00:01,139 INFO L226 Difference]: Without dead ends: 7 [2021-11-13 18:00:01,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:00:01,147 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 18:00:01,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.34ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 18:00:01,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-11-13 18:00:01,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-11-13 18:00:01,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:00:01,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-11-13 18:00:01,188 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-11-13 18:00:01,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:00:01,188 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-11-13 18:00:01,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:00:01,189 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-11-13 18:00:01,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 18:00:01,189 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:00:01,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 18:00:01,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:00:01,191 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:00:01,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:00:01,192 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-11-13 18:00:01,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:00:01,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773880167] [2021-11-13 18:00:01,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:00:01,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:00:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:00:01,252 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:00:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:00:01,285 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:00:01,286 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 18:00:01,288 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 18:00:01,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:00:01,293 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-13 18:00:01,295 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:00:01,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:00:01 BoogieIcfgContainer [2021-11-13 18:00:01,316 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 18:00:01,317 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:00:01,317 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:00:01,317 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:00:01,318 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:00:00" (3/4) ... [2021-11-13 18:00:01,321 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 18:00:01,321 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:00:01,322 INFO L158 Benchmark]: Toolchain (without parser) took 1085.88ms. Allocated memory is still 94.4MB. Free memory was 57.9MB in the beginning and 66.9MB in the end (delta: -9.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:00:01,322 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:00:01,323 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.09ms. Allocated memory is still 94.4MB. Free memory was 57.6MB in the beginning and 47.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:00:01,323 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.83ms. Allocated memory is still 94.4MB. Free memory was 47.8MB in the beginning and 46.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:00:01,324 INFO L158 Benchmark]: Boogie Preprocessor took 18.94ms. Allocated memory is still 94.4MB. Free memory was 46.4MB in the beginning and 45.4MB in the end (delta: 961.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:00:01,325 INFO L158 Benchmark]: RCFGBuilder took 311.37ms. Allocated memory is still 94.4MB. Free memory was 45.4MB in the beginning and 70.8MB in the end (delta: -25.4MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2021-11-13 18:00:01,325 INFO L158 Benchmark]: TraceAbstraction took 501.93ms. Allocated memory is still 94.4MB. Free memory was 70.5MB in the beginning and 67.3MB in the end (delta: 3.2MB). Peak memory consumption was 896.5kB. Max. memory is 16.1GB. [2021-11-13 18:00:01,326 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 94.4MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:00:01,329 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.09ms. Allocated memory is still 94.4MB. Free memory was 57.6MB in the beginning and 47.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.83ms. Allocated memory is still 94.4MB. Free memory was 47.8MB in the beginning and 46.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.94ms. Allocated memory is still 94.4MB. Free memory was 46.4MB in the beginning and 45.4MB in the end (delta: 961.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.37ms. Allocated memory is still 94.4MB. Free memory was 45.4MB in the beginning and 70.8MB in the end (delta: -25.4MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * TraceAbstraction took 501.93ms. Allocated memory is still 94.4MB. Free memory was 70.5MB in the beginning and 67.3MB in the end (delta: 3.2MB). Peak memory consumption was 896.5kB. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 94.4MB. Free memory is still 66.9MB. 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: 38]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 37, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L29] float IN = __VERIFIER_nondet_float(); [L30] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L30] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L32] float x = IN; [L34-L35] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=49, x=49] [L37] COND TRUE !(result >= 0.0f && result < 1.5f) VAL [IN=49, x=49] [L38] reach_error() VAL [IN=49, x=49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.00ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.00ms 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, 10 mSDtfsCounter, 0 mSolverCounterSat, 0.34ms 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=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-13 18:00:01,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y --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 80c3dca82feaee551f8126572f1dcc09ca65938303a72a158f2c77643864b20a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:00:03,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:00:03,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:00:03,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:00:03,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:00:03,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:00:03,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:00:03,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:00:03,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:00:03,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:00:03,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:00:03,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:00:03,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:00:03,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:00:03,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:00:03,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:00:03,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:00:03,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:00:03,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:00:03,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:00:03,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:00:03,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:00:03,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:00:03,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:00:03,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:00:03,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:00:03,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:00:03,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:00:03,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:00:03,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:00:03,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:00:03,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:00:03,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:00:03,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:00:03,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:00:03,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:00:03,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:00:03,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:00:03,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:00:03,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:00:03,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:00:03,919 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-13 18:00:03,980 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:00:03,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:00:03,982 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:00:03,983 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:00:03,984 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:00:03,984 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:00:03,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:00:03,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:00:03,986 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:00:03,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:00:03,987 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:00:03,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:00:03,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:00:03,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:00:03,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:00:03,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:00:03,989 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 18:00:03,989 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 18:00:03,990 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:00:03,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:00:03,990 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:00:03,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:00:03,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:00:03,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:00:03,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:00:03,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:00:03,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:00:03,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:00:03,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:00:03,993 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-13 18:00:03,993 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 18:00:03,994 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:00:03,994 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:00:03,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:00:03,994 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:00:03,995 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 18:00:03,995 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_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80c3dca82feaee551f8126572f1dcc09ca65938303a72a158f2c77643864b20a [2021-11-13 18:00:04,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:00:04,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:00:04,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:00:04,426 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:00:04,426 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:00:04,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/floats-cdfpl/square_8.i [2021-11-13 18:00:04,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/data/134ae7e1a/bda6773c3be04404832a9a78e4e142e0/FLAGc2c440535 [2021-11-13 18:00:05,015 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:00:05,016 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/sv-benchmarks/c/floats-cdfpl/square_8.i [2021-11-13 18:00:05,024 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/data/134ae7e1a/bda6773c3be04404832a9a78e4e142e0/FLAGc2c440535 [2021-11-13 18:00:05,395 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/data/134ae7e1a/bda6773c3be04404832a9a78e4e142e0 [2021-11-13 18:00:05,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:00:05,403 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:00:05,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:00:05,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:00:05,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:00:05,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:00:05" (1/1) ... [2021-11-13 18:00:05,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a72745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:05, skipping insertion in model container [2021-11-13 18:00:05,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:00:05" (1/1) ... [2021-11-13 18:00:05,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:00:05,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:00:05,714 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/sv-benchmarks/c/floats-cdfpl/square_8.i[1625,1638] [2021-11-13 18:00:05,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:00:05,736 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:00:05,765 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/sv-benchmarks/c/floats-cdfpl/square_8.i[1625,1638] [2021-11-13 18:00:05,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:00:05,784 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:00:05,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:05 WrapperNode [2021-11-13 18:00:05,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:00:05,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:00:05,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:00:05,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:00:05,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:05" (1/1) ... [2021-11-13 18:00:05,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:05" (1/1) ... [2021-11-13 18:00:05,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:00:05,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:00:05,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:00:05,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:00:05,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:05" (1/1) ... [2021-11-13 18:00:05,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:05" (1/1) ... [2021-11-13 18:00:05,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:05" (1/1) ... [2021-11-13 18:00:05,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:05" (1/1) ... [2021-11-13 18:00:05,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:05" (1/1) ... [2021-11-13 18:00:05,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:05" (1/1) ... [2021-11-13 18:00:05,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:05" (1/1) ... [2021-11-13 18:00:05,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:00:05,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:00:05,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:00:05,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:00:05,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:05" (1/1) ... [2021-11-13 18:00:05,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:00:05,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:00:05,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:00:06,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:00:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 18:00:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:00:06,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:00:06,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:00:08,355 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:00:08,356 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:00:08,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:00:08 BoogieIcfgContainer [2021-11-13 18:00:08,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:00:08,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:00:08,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:00:08,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:00:08,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:00:05" (1/3) ... [2021-11-13 18:00:08,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39ed2f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:00:08, skipping insertion in model container [2021-11-13 18:00:08,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:05" (2/3) ... [2021-11-13 18:00:08,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39ed2f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:00:08, skipping insertion in model container [2021-11-13 18:00:08,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:00:08" (3/3) ... [2021-11-13 18:00:08,366 INFO L111 eAbstractionObserver]: Analyzing ICFG square_8.i [2021-11-13 18:00:08,371 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:00:08,372 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:00:08,418 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:00:08,425 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:00:08,425 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:00:08,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:00:08,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 18:00:08,443 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:00:08,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 18:00:08,444 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:00:08,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:00:08,450 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-11-13 18:00:08,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:00:08,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212755754] [2021-11-13 18:00:08,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:00:08,462 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:00:08,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:00:08,464 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:00:08,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 18:00:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:00:08,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 18:00:08,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:00:09,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:00:09,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:00:09,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:00:09,041 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:00:09,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212755754] [2021-11-13 18:00:09,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212755754] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:00:09,042 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:00:09,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 18:00:09,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245416106] [2021-11-13 18:00:09,044 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:00:09,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 18:00:09,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:00:09,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 18:00:09,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:00:09,089 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:00:09,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:00:09,102 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-11-13 18:00:09,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:00:09,106 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-11-13 18:00:09,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:00:09,114 INFO L225 Difference]: With dead ends: 19 [2021-11-13 18:00:09,114 INFO L226 Difference]: Without dead ends: 7 [2021-11-13 18:00:09,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:00:09,120 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.54ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 18:00:09,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.54ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 18:00:09,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-11-13 18:00:09,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-11-13 18:00:09,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:00:09,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-11-13 18:00:09,152 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-11-13 18:00:09,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:00:09,153 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-11-13 18:00:09,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:00:09,153 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-11-13 18:00:09,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 18:00:09,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:00:09,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 18:00:09,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:00:09,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:00:09,363 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:00:09,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:00:09,364 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-11-13 18:00:09,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:00:09,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417060354] [2021-11-13 18:00:09,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:00:09,366 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:00:09,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:00:09,367 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:00:09,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 18:00:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:00:40,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 18:00:40,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:00:55,887 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~IN~0#1| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (fp.geq |ULTIMATE.start_main_~IN~0#1| (_ +zero 8 24)) (fp.lt |ULTIMATE.start_main_~IN~0#1| .cse0) (= |c_ULTIMATE.start_main_~result~0#1| (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-13 18:01:45,537 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~IN~0#1| (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (let ((.cse0 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) |ULTIMATE.start_main_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|)))) (or (not (fp.lt .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)))) (not (fp.geq .cse0 (_ +zero 8 24))))) (fp.geq |ULTIMATE.start_main_~IN~0#1| (_ +zero 8 24)) (fp.lt |ULTIMATE.start_main_~IN~0#1| .cse1)))) is different from false [2021-11-13 18:01:47,584 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~IN~0#1| (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (let ((.cse0 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) |ULTIMATE.start_main_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|)))) (or (not (fp.lt .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)))) (not (fp.geq .cse0 (_ +zero 8 24))))) (fp.geq |ULTIMATE.start_main_~IN~0#1| (_ +zero 8 24)) (fp.lt |ULTIMATE.start_main_~IN~0#1| .cse1)))) is different from true [2021-11-13 18:01:47,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:01:47,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:01:58,208 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 1.0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)))) (and (fp.geq .cse0 (_ +zero 8 24)) (fp.lt .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0))))) is different from false [2021-11-13 18:02:00,276 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 1.0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)))) (and (fp.geq .cse0 (_ +zero 8 24)) (fp.lt .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0))))) is different from true [2021-11-13 18:02:15,061 WARN L838 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)) (let ((.cse0 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 1.0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)))) (and (fp.geq .cse0 (_ +zero 8 24)) (fp.lt .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))))) is different from false [2021-11-13 18:02:17,144 WARN L860 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)) (let ((.cse0 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 1.0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)))) (and (fp.geq .cse0 (_ +zero 8 24)) (fp.lt .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))))) is different from true [2021-11-13 18:03:01,406 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~IN~0#1_4| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (or (not (fp.lt |v_ULTIMATE.start_main_~IN~0#1_4| .cse0)) (let ((.cse1 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |v_ULTIMATE.start_main_~IN~0#1_4|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|)))) (and (fp.lt .cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0))) (fp.geq .cse1 (_ +zero 8 24)))) (not (fp.geq |v_ULTIMATE.start_main_~IN~0#1_4| (_ +zero 8 24)))))) is different from false [2021-11-13 18:03:03,478 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~IN~0#1_4| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (or (not (fp.lt |v_ULTIMATE.start_main_~IN~0#1_4| .cse0)) (let ((.cse1 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |v_ULTIMATE.start_main_~IN~0#1_4|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|)))) (and (fp.lt .cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0))) (fp.geq .cse1 (_ +zero 8 24)))) (not (fp.geq |v_ULTIMATE.start_main_~IN~0#1_4| (_ +zero 8 24)))))) is different from true [2021-11-13 18:03:03,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:03:03,479 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:03:03,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417060354] [2021-11-13 18:03:03,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417060354] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:03:03,479 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:03:03,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2021-11-13 18:03:03,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175230156] [2021-11-13 18:03:03,480 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:03:03,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 18:03:03,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:03:03,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 18:03:03,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=20, Unknown=9, NotChecked=60, Total=110 [2021-11-13 18:03:03,483 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:03:05,547 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~IN~0#1_4| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (or (not (fp.lt |v_ULTIMATE.start_main_~IN~0#1_4| .cse0)) (let ((.cse1 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |v_ULTIMATE.start_main_~IN~0#1_4|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|)))) (and (fp.lt .cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0))) (fp.geq .cse1 (_ +zero 8 24)))) (not (fp.geq |v_ULTIMATE.start_main_~IN~0#1_4| (_ +zero 8 24)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-13 18:03:07,611 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~IN~0#1_4| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (or (not (fp.lt |v_ULTIMATE.start_main_~IN~0#1_4| .cse0)) (let ((.cse1 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |v_ULTIMATE.start_main_~IN~0#1_4|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|) |v_ULTIMATE.start_main_~IN~0#1_4|)))) (and (fp.lt .cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0))) (fp.geq .cse1 (_ +zero 8 24)))) (not (fp.geq |v_ULTIMATE.start_main_~IN~0#1_4| (_ +zero 8 24)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-13 18:03:09,684 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32))) (.cse3 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (let ((.cse2 (fp.geq |c_ULTIMATE.start_main_~IN~0#1| (_ +zero 8 24))) (.cse1 (fp.lt |c_ULTIMATE.start_main_~IN~0#1| .cse3))) (or (and .cse0 (or (not .cse1) (not .cse2))) (and .cse2 .cse1 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))))) (or .cse0 (let ((.cse4 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse3 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)))) (and (fp.geq .cse4 (_ +zero 8 24)) (fp.lt .cse4 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-11-13 18:03:11,757 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32))) (.cse3 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (let ((.cse2 (fp.geq |c_ULTIMATE.start_main_~IN~0#1| (_ +zero 8 24))) (.cse1 (fp.lt |c_ULTIMATE.start_main_~IN~0#1| .cse3))) (or (and .cse0 (or (not .cse1) (not .cse2))) (and .cse2 .cse1 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))))) (or .cse0 (let ((.cse4 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse3 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)))) (and (fp.geq .cse4 (_ +zero 8 24)) (fp.lt .cse4 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-11-13 18:03:13,848 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse1 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)))) (and (fp.geq |c_ULTIMATE.start_main_~IN~0#1| (_ +zero 8 24)) (fp.lt |c_ULTIMATE.start_main_~IN~0#1| .cse0) (fp.geq .cse1 (_ +zero 8 24)) (fp.lt .cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0))) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2021-11-13 18:03:15,926 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse1 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|) |c_ULTIMATE.start_main_~IN~0#1|)))) (and (fp.geq |c_ULTIMATE.start_main_~IN~0#1| (_ +zero 8 24)) (fp.lt |c_ULTIMATE.start_main_~IN~0#1| .cse0) (fp.geq .cse1 (_ +zero 8 24)) (fp.lt .cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0))) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2021-11-13 18:03:18,013 WARN L838 $PredicateComparison]: unable to prove that (and (fp.lt |c_ULTIMATE.start_main_~result~0#1| ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0))) (exists ((|ULTIMATE.start_main_~IN~0#1| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (fp.geq |ULTIMATE.start_main_~IN~0#1| (_ +zero 8 24)) (fp.lt |ULTIMATE.start_main_~IN~0#1| .cse0) (= |c_ULTIMATE.start_main_~result~0#1| (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|) |ULTIMATE.start_main_~IN~0#1|)))))) (fp.geq |c_ULTIMATE.start_main_~result~0#1| (_ +zero 8 24)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-13 18:03:18,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:03:18,024 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2021-11-13 18:03:18,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:03:18,024 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 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 6 [2021-11-13 18:03:18,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:03:18,025 INFO L225 Difference]: With dead ends: 7 [2021-11-13 18:03:18,025 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 18:03:18,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 33.4s TimeCoverageRelationStatistics Valid=29, Invalid=21, Unknown=16, NotChecked=144, Total=210 [2021-11-13 18:03:18,027 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 17.77ms IncrementalHoareTripleChecker+Time [2021-11-13 18:03:18,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 10 Unknown, 0 Unchecked, 0.16ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 7 Unchecked, 17.77ms Time] [2021-11-13 18:03:18,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 18:03:18,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 18:03:18,030 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) [2021-11-13 18:03:18,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 18:03:18,030 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-11-13 18:03:18,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:03:18,030 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:03:18,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:03:18,031 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:03:18,031 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 18:03:18,034 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 18:03:18,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:03:18,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:03:18,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 18:03:18,242 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 18:03:18,242 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 18:03:18,243 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 18:03:18,243 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 18:03:18,243 INFO L858 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-11-13 18:03:18,243 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 38) no Hoare annotation was computed. [2021-11-13 18:03:18,244 INFO L858 garLoopResultBuilder]: For program point L23(lines 23 25) no Hoare annotation was computed. [2021-11-13 18:03:18,245 INFO L861 garLoopResultBuilder]: At program point L40(lines 27 41) the Hoare annotation is: true [2021-11-13 18:03:18,246 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-11-13 18:03:18,247 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 38) no Hoare annotation was computed. [2021-11-13 18:03:18,247 INFO L858 garLoopResultBuilder]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2021-11-13 18:03:18,250 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-13 18:03:18,254 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:03:18,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:03:18 BoogieIcfgContainer [2021-11-13 18:03:18,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 18:03:18,265 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:03:18,266 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:03:18,266 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:03:18,266 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:00:08" (3/4) ... [2021-11-13 18:03:18,269 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 18:03:18,280 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-13 18:03:18,280 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 18:03:18,280 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 18:03:18,280 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 18:03:18,311 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:03:18,311 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:03:18,312 INFO L158 Benchmark]: Toolchain (without parser) took 192909.41ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 45.5MB in the beginning and 72.9MB in the end (delta: -27.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:03:18,312 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 79.7MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:03:18,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.11ms. Allocated memory is still 79.7MB. Free memory was 45.3MB in the beginning and 63.3MB in the end (delta: -18.0MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2021-11-13 18:03:18,313 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.87ms. Allocated memory is still 79.7MB. Free memory was 63.3MB in the beginning and 61.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:03:18,314 INFO L158 Benchmark]: Boogie Preprocessor took 61.98ms. Allocated memory is still 79.7MB. Free memory was 61.9MB in the beginning and 60.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:03:18,314 INFO L158 Benchmark]: RCFGBuilder took 2426.90ms. Allocated memory is still 79.7MB. Free memory was 60.6MB in the beginning and 51.6MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:03:18,315 INFO L158 Benchmark]: TraceAbstraction took 189905.28ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 51.0MB in the beginning and 75.6MB in the end (delta: -24.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:03:18,315 INFO L158 Benchmark]: Witness Printer took 45.72ms. Allocated memory is still 96.5MB. Free memory was 75.0MB in the beginning and 72.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:03:18,318 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 79.7MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.11ms. Allocated memory is still 79.7MB. Free memory was 45.3MB in the beginning and 63.3MB in the end (delta: -18.0MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.87ms. Allocated memory is still 79.7MB. Free memory was 63.3MB in the beginning and 61.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.98ms. Allocated memory is still 79.7MB. Free memory was 61.9MB in the beginning and 60.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 2426.90ms. Allocated memory is still 79.7MB. Free memory was 60.6MB in the beginning and 51.6MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 189905.28ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 51.0MB in the beginning and 75.6MB in the end (delta: -24.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 45.72ms. Allocated memory is still 96.5MB. Free memory was 75.0MB in the beginning and 72.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 - PositiveResult [Line: 38]: 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 189.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 17.77ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 16.79ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 7 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 3 mSolverCounterSat, 0.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 33.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 31.8s SatisfiabilityAnalysisTime, 142.9s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 3 QuantifiedInterpolants, 616 SizeOfPredicates, 6 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 27]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-13 18:03:18,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6718167-d4dc-4e09-9b21-c92c455d05c5/bin/uautomizer-YU5uOKAj3y/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: TRUE