./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF --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 eabf73fda8ad66cc712b5e2aa068d76d83b4a035cc33c195eef372e98b57afab --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:07:58,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:07:58,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:07:58,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:07:58,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:07:58,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:07:58,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:07:58,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:07:58,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:07:58,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:07:58,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:07:58,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:07:58,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:07:58,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:07:58,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:07:58,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:07:58,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:07:58,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:07:58,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:07:58,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:07:58,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:07:58,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:07:58,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:07:58,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:07:58,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:07:58,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:07:58,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:07:58,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:07:58,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:07:58,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:07:58,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:07:58,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:07:58,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:07:58,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:07:58,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:07:58,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:07:58,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:07:58,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:07:58,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:07:58,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:07:58,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:07:58,260 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 07:07:58,288 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:07:58,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:07:58,288 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:07:58,288 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:07:58,289 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:07:58,289 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:07:58,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:07:58,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:07:58,290 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:07:58,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:07:58,302 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:07:58,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:07:58,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:07:58,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:07:58,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:07:58,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:07:58,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:07:58,304 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:07:58,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:07:58,304 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:07:58,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:07:58,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:07:58,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:07:58,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:07:58,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:07:58,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:07:58,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:07:58,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:07:58,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:07:58,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:07:58,308 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:07:58,308 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:07:58,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:07:58,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:07:58,309 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_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eabf73fda8ad66cc712b5e2aa068d76d83b4a035cc33c195eef372e98b57afab [2021-11-20 07:07:58,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:07:58,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:07:58,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:07:58,588 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:07:58,589 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:07:58,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-11-20 07:07:58,671 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/data/76de8d2a4/00f9975b0a26437699195b9a24134ff0/FLAGebc969d4b [2021-11-20 07:07:59,176 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:07:59,176 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-11-20 07:07:59,184 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/data/76de8d2a4/00f9975b0a26437699195b9a24134ff0/FLAGebc969d4b [2021-11-20 07:07:59,526 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/data/76de8d2a4/00f9975b0a26437699195b9a24134ff0 [2021-11-20 07:07:59,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:07:59,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:07:59,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:07:59,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:07:59,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:07:59,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:07:59" (1/1) ... [2021-11-20 07:07:59,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56be7e89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:59, skipping insertion in model container [2021-11-20 07:07:59,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:07:59" (1/1) ... [2021-11-20 07:07:59,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:07:59,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:07:59,809 WARN L230 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_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2021-11-20 07:07:59,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:07:59,820 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:07:59,866 WARN L230 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_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2021-11-20 07:07:59,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:07:59,882 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:07:59,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:59 WrapperNode [2021-11-20 07:07:59,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:07:59,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:07:59,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:07:59,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:07:59,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:59" (1/1) ... [2021-11-20 07:07:59,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:59" (1/1) ... [2021-11-20 07:07:59,938 INFO L137 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 224 [2021-11-20 07:07:59,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:07:59,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:07:59,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:07:59,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:07:59,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:59" (1/1) ... [2021-11-20 07:07:59,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:59" (1/1) ... [2021-11-20 07:07:59,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:59" (1/1) ... [2021-11-20 07:07:59,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:59" (1/1) ... [2021-11-20 07:07:59,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:59" (1/1) ... [2021-11-20 07:07:59,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:59" (1/1) ... [2021-11-20 07:07:59,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:59" (1/1) ... [2021-11-20 07:08:00,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:08:00,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:08:00,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:08:00,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:08:00,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:59" (1/1) ... [2021-11-20 07:08:00,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:08:00,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:08:00,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:08:00,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:08:00,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:08:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:08:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:08:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:08:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-20 07:08:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-20 07:08:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:08:00,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:08:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:08:00,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-20 07:08:00,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:08:00,157 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:08:00,158 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:08:00,472 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:08:00,479 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:08:00,479 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-20 07:08:00,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:08:00 BoogieIcfgContainer [2021-11-20 07:08:00,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:08:00,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:08:00,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:08:00,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:08:00,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:07:59" (1/3) ... [2021-11-20 07:08:00,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d840b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:08:00, skipping insertion in model container [2021-11-20 07:08:00,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:59" (2/3) ... [2021-11-20 07:08:00,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d840b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:08:00, skipping insertion in model container [2021-11-20 07:08:00,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:08:00" (3/3) ... [2021-11-20 07:08:00,490 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2021-11-20 07:08:00,495 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:08:00,496 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:08:00,582 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:08:00,592 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 [2021-11-20 07:08:00,594 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:08:00,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 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) [2021-11-20 07:08:00,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 07:08:00,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:08:00,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:08:00,626 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:08:00,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:08:00,637 INFO L85 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2021-11-20 07:08:00,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:08:00,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888809214] [2021-11-20 07:08:00,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:08:00,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:08:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:00,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:08:00,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:08:00,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888809214] [2021-11-20 07:08:00,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888809214] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:08:00,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:08:00,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:08:00,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479858085] [2021-11-20 07:08:00,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:08:00,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 07:08:00,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:08:00,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 07:08:00,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:08:00,905 INFO L87 Difference]: Start difference. First operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-11-20 07:08:00,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:08:00,942 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2021-11-20 07:08:00,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:08:00,945 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-11-20 07:08:00,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:08:00,956 INFO L225 Difference]: With dead ends: 108 [2021-11-20 07:08:00,957 INFO L226 Difference]: Without dead ends: 52 [2021-11-20 07:08:00,960 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 [2021-11-20 07:08:00,967 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:08:00,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:08:00,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-20 07:08:01,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-11-20 07:08:01,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 51 states have internal predecessors, (78), 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) [2021-11-20 07:08:01,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2021-11-20 07:08:01,022 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2021-11-20 07:08:01,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:08:01,023 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2021-11-20 07:08:01,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-11-20 07:08:01,024 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2021-11-20 07:08:01,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 07:08:01,025 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:08:01,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:08:01,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:08:01,027 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:08:01,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:08:01,031 INFO L85 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2021-11-20 07:08:01,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:08:01,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004182351] [2021-11-20 07:08:01,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:08:01,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:08:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:08:01,164 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:08:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:08:01,236 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:08:01,236 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 07:08:01,238 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 07:08:01,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:08:01,244 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-20 07:08:01,247 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:08:01,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:08:01 BoogieIcfgContainer [2021-11-20 07:08:01,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:08:01,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:08:01,275 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:08:01,275 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:08:01,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:08:00" (3/4) ... [2021-11-20 07:08:01,278 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:08:01,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:08:01,279 INFO L158 Benchmark]: Toolchain (without parser) took 1749.35ms. Allocated memory was 96.5MB in the beginning and 121.6MB in the end (delta: 25.2MB). Free memory was 62.8MB in the beginning and 81.5MB in the end (delta: -18.6MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2021-11-20 07:08:01,280 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 96.5MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:08:01,281 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.44ms. Allocated memory was 96.5MB in the beginning and 121.6MB in the end (delta: 25.2MB). Free memory was 62.6MB in the beginning and 93.9MB in the end (delta: -31.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:08:01,281 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.43ms. Allocated memory is still 121.6MB. Free memory was 93.5MB in the beginning and 91.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:08:01,282 INFO L158 Benchmark]: Boogie Preprocessor took 67.30ms. Allocated memory is still 121.6MB. Free memory was 91.4MB in the beginning and 89.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:08:01,283 INFO L158 Benchmark]: RCFGBuilder took 470.65ms. Allocated memory is still 121.6MB. Free memory was 89.3MB in the beginning and 72.1MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-20 07:08:01,283 INFO L158 Benchmark]: TraceAbstraction took 790.59ms. Allocated memory is still 121.6MB. Free memory was 71.6MB in the beginning and 81.5MB in the end (delta: -9.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:08:01,284 INFO L158 Benchmark]: Witness Printer took 3.93ms. Allocated memory is still 121.6MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:08:01,287 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 96.5MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.44ms. Allocated memory was 96.5MB in the beginning and 121.6MB in the end (delta: 25.2MB). Free memory was 62.6MB in the beginning and 93.9MB in the end (delta: -31.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.43ms. Allocated memory is still 121.6MB. Free memory was 93.5MB in the beginning and 91.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.30ms. Allocated memory is still 121.6MB. Free memory was 91.4MB in the beginning and 89.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 470.65ms. Allocated memory is still 121.6MB. Free memory was 89.3MB in the beginning and 72.1MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 790.59ms. Allocated memory is still 121.6MB. Free memory was 71.6MB in the beginning and 81.5MB in the end (delta: -9.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.93ms. Allocated memory is still 121.6MB. Free memory is still 81.5MB. 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: 177]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 172, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={4:0}] [L171] double x = __VERIFIER_nondet_double(); [L172] double y = -0.0; [L173] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [\old(x)=8589934595, \old(y)=8589934592, one_fmod=1, x=8589934595, y=8589934592, Zero_fmod={4:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [\old(x)=8589934595, \old(y)=8589934592, lx=8589934591, ly=8589934593, one_fmod=1, sx=-1, x=8589934595, y=8589934592, Zero_fmod={4:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [\old(x)=8589934595, \old(y)=8589934592, hx=2146435072, lx=8589934591, ly=8589934593, one_fmod=1, sx=-1, x=8589934595, y=8589934592, Zero_fmod={4:0}] [L173] RET, EXPR fmod_double(x, y) [L173] double res = fmod_double(x, y); [L176] CALL, EXPR isnan_double(res) [L18] return x != x; VAL [\old(x)=8589934594, \result=0, one_fmod=1, x=8589934594, Zero_fmod={4:0}] [L176] RET, EXPR isnan_double(res) [L176] COND TRUE !isnan_double(res) [L177] reach_error() VAL [one_fmod=1, res=8589934594, x=8589934595, y=8589934592, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 81 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred 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, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2021-11-20 07:08:01,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/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_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF --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 eabf73fda8ad66cc712b5e2aa068d76d83b4a035cc33c195eef372e98b57afab --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:08:03,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:08:03,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:08:03,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:08:03,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:08:03,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:08:03,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:08:03,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:08:03,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:08:03,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:08:03,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:08:03,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:08:03,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:08:03,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:08:03,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:08:03,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:08:03,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:08:03,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:08:03,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:08:03,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:08:03,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:08:03,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:08:03,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:08:03,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:08:03,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:08:03,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:08:03,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:08:03,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:08:03,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:08:03,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:08:03,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:08:03,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:08:03,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:08:03,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:08:03,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:08:03,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:08:03,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:08:03,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:08:03,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:08:03,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:08:03,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:08:03,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-20 07:08:04,016 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:08:04,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:08:04,016 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:08:04,017 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:08:04,017 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:08:04,018 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:08:04,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:08:04,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:08:04,019 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:08:04,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:08:04,023 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:08:04,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:08:04,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:08:04,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:08:04,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:08:04,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:08:04,025 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 07:08:04,026 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 07:08:04,026 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 07:08:04,026 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:08:04,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:08:04,027 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:08:04,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:08:04,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:08:04,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:08:04,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:08:04,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:08:04,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:08:04,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:08:04,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:08:04,030 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 07:08:04,030 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 07:08:04,030 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:08:04,031 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:08:04,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:08:04,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:08:04,031 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 07:08:04,032 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_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eabf73fda8ad66cc712b5e2aa068d76d83b4a035cc33c195eef372e98b57afab [2021-11-20 07:08:04,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:08:04,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:08:04,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:08:04,488 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:08:04,489 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:08:04,491 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-11-20 07:08:04,554 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/data/62f69363a/d8fa6fde0d63403ebaf5c22592954577/FLAG3131a9360 [2021-11-20 07:08:05,149 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:08:05,153 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-11-20 07:08:05,166 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/data/62f69363a/d8fa6fde0d63403ebaf5c22592954577/FLAG3131a9360 [2021-11-20 07:08:05,480 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/data/62f69363a/d8fa6fde0d63403ebaf5c22592954577 [2021-11-20 07:08:05,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:08:05,492 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:08:05,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:08:05,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:08:05,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:08:05,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:08:05" (1/1) ... [2021-11-20 07:08:05,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@144d114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:05, skipping insertion in model container [2021-11-20 07:08:05,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:08:05" (1/1) ... [2021-11-20 07:08:05,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:08:05,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:08:05,726 WARN L230 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_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2021-11-20 07:08:05,729 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:08:05,750 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:08:05,836 WARN L230 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_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2021-11-20 07:08:05,837 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:08:05,859 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:08:05,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:05 WrapperNode [2021-11-20 07:08:05,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:08:05,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:08:05,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:08:05,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:08:05,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:05" (1/1) ... [2021-11-20 07:08:05,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:05" (1/1) ... [2021-11-20 07:08:05,947 INFO L137 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 224 [2021-11-20 07:08:05,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:08:05,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:08:05,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:08:05,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:08:05,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:05" (1/1) ... [2021-11-20 07:08:05,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:05" (1/1) ... [2021-11-20 07:08:05,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:05" (1/1) ... [2021-11-20 07:08:05,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:05" (1/1) ... [2021-11-20 07:08:06,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:05" (1/1) ... [2021-11-20 07:08:06,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:05" (1/1) ... [2021-11-20 07:08:06,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:05" (1/1) ... [2021-11-20 07:08:06,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:08:06,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:08:06,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:08:06,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:08:06,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:05" (1/1) ... [2021-11-20 07:08:06,058 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:08:06,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:08:06,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:08:06,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:08:06,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:08:06,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-20 07:08:06,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-20 07:08:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 07:08:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:08:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-20 07:08:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-20 07:08:06,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:08:06,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:08:06,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-20 07:08:06,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:08:06,262 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:08:06,264 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:08:09,626 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:08:09,632 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:08:09,633 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-20 07:08:09,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:08:09 BoogieIcfgContainer [2021-11-20 07:08:09,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:08:09,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:08:09,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:08:09,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:08:09,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:08:05" (1/3) ... [2021-11-20 07:08:09,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36abd788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:08:09, skipping insertion in model container [2021-11-20 07:08:09,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:05" (2/3) ... [2021-11-20 07:08:09,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36abd788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:08:09, skipping insertion in model container [2021-11-20 07:08:09,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:08:09" (3/3) ... [2021-11-20 07:08:09,643 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2021-11-20 07:08:09,649 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:08:09,649 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:08:09,699 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:08:09,707 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 [2021-11-20 07:08:09,707 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:08:09,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 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) [2021-11-20 07:08:09,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 07:08:09,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:08:09,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:08:09,729 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:08:09,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:08:09,735 INFO L85 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2021-11-20 07:08:09,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:08:09,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066301357] [2021-11-20 07:08:09,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:08:09,748 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:08:09,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:08:09,753 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:08:09,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 07:08:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:10,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 07:08:10,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:08:10,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:08:10,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:08:10,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:08:10,920 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:08:10,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066301357] [2021-11-20 07:08:10,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066301357] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:08:10,921 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:08:10,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 07:08:10,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725182738] [2021-11-20 07:08:10,924 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:08:10,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 07:08:10,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:08:10,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 07:08:10,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:08:10,957 INFO L87 Difference]: Start difference. First operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-11-20 07:08:10,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:08:10,979 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2021-11-20 07:08:10,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:08:10,981 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-11-20 07:08:10,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:08:10,990 INFO L225 Difference]: With dead ends: 108 [2021-11-20 07:08:10,990 INFO L226 Difference]: Without dead ends: 52 [2021-11-20 07:08:10,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:08:10,997 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:08:10,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:08:11,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-20 07:08:11,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-11-20 07:08:11,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 51 states have internal predecessors, (78), 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) [2021-11-20 07:08:11,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2021-11-20 07:08:11,053 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2021-11-20 07:08:11,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:08:11,053 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2021-11-20 07:08:11,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-11-20 07:08:11,054 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2021-11-20 07:08:11,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 07:08:11,054 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:08:11,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:08:11,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-20 07:08:11,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:08:11,280 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:08:11,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:08:11,281 INFO L85 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2021-11-20 07:08:11,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:08:11,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314961882] [2021-11-20 07:08:11,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:08:11,282 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:08:11,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:08:11,289 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:08:11,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 07:08:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:12,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-20 07:08:12,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:08:36,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:08:36,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:08:52,136 WARN L860 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_fmod_double_~x#1| (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode |ULTIMATE.start_fmod_double_~x#1| |c_ULTIMATE.start_fmod_double_~y#1|))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2021-11-20 07:09:18,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:09:18,360 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:09:18,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314961882] [2021-11-20 07:09:18,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314961882] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:09:18,361 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:09:18,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-20 07:09:18,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154577652] [2021-11-20 07:09:18,361 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:09:18,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 07:09:18,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:09:18,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 07:09:18,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=5, NotChecked=16, Total=110 [2021-11-20 07:09:18,365 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:09:22,056 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_fmod_double_~x#1| (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode |ULTIMATE.start_fmod_double_~x#1| |c_ULTIMATE.start_fmod_double_~y#1|))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= |c_ULTIMATE.start_fmod_double_~y#1| (fp.neg (_ +zero 11 53))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-20 07:09:25,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:27,269 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:27,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:09:27,270 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2021-11-20 07:09:27,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:09:27,312 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-20 07:09:27,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:09:27,314 INFO L225 Difference]: With dead ends: 57 [2021-11-20 07:09:27,314 INFO L226 Difference]: Without dead ends: 52 [2021-11-20 07:09:27,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 31.5s TimeCoverageRelationStatistics Valid=31, Invalid=81, Unknown=6, NotChecked=38, Total=156 [2021-11-20 07:09:27,317 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 2 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 112 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:09:27,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 537 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 2 Unknown, 112 Unchecked, 4.3s Time] [2021-11-20 07:09:27,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-20 07:09:27,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-11-20 07:09:27,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 51 states have internal predecessors, (77), 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) [2021-11-20 07:09:27,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2021-11-20 07:09:27,332 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2021-11-20 07:09:27,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:09:27,333 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2021-11-20 07:09:27,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:09:27,334 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2021-11-20 07:09:27,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-20 07:09:27,335 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:09:27,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:09:27,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:09:27,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:09:27,551 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:09:27,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:09:27,552 INFO L85 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2021-11-20 07:09:27,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:09:27,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386554141] [2021-11-20 07:09:27,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:09:27,553 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:09:27,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:09:27,554 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:09:27,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 07:09:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:27,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 07:09:27,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:09:27,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2021-11-20 07:09:28,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:09:28,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:09:29,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-11-20 07:09:29,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:09:29,505 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:09:29,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386554141] [2021-11-20 07:09:29,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386554141] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:09:29,505 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:09:29,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 07:09:29,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526155713] [2021-11-20 07:09:29,506 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:09:29,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 07:09:29,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:09:29,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 07:09:29,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:09:29,507 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2021-11-20 07:09:29,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:09:29,738 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2021-11-20 07:09:29,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:09:29,738 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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 14 [2021-11-20 07:09:29,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:09:29,739 INFO L225 Difference]: With dead ends: 52 [2021-11-20 07:09:29,739 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 07:09:29,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:09:29,741 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:09:29,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 14 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 3 Unchecked, 0.0s Time] [2021-11-20 07:09:29,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 07:09:29,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 07:09:29,745 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) [2021-11-20 07:09:29,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 07:09:29,746 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-11-20 07:09:29,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:09:29,747 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:09:29,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2021-11-20 07:09:29,747 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 07:09:29,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 07:09:29,754 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 07:09:29,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:09:29,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:09:29,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 07:09:36,805 INFO L858 garLoopResultBuilder]: For program point L35-2(lines 35 40) no Hoare annotation was computed. [2021-11-20 07:09:36,806 INFO L854 garLoopResultBuilder]: At program point L68-3(lines 68 69) the Hoare annotation is: false [2021-11-20 07:09:36,806 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 07:09:36,806 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 136 141) no Hoare annotation was computed. [2021-11-20 07:09:36,806 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 103 117) no Hoare annotation was computed. [2021-11-20 07:09:36,806 INFO L854 garLoopResultBuilder]: At program point L136-2(lines 136 141) the Hoare annotation is: false [2021-11-20 07:09:36,806 INFO L858 garLoopResultBuilder]: For program point L103-3(lines 103 117) no Hoare annotation was computed. [2021-11-20 07:09:36,807 INFO L858 garLoopResultBuilder]: For program point L120(lines 120 121) no Hoare annotation was computed. [2021-11-20 07:09:36,807 INFO L858 garLoopResultBuilder]: For program point L120-2(lines 25 163) no Hoare annotation was computed. [2021-11-20 07:09:36,807 INFO L858 garLoopResultBuilder]: For program point L71-2(lines 71 72) no Hoare annotation was computed. [2021-11-20 07:09:36,807 INFO L854 garLoopResultBuilder]: At program point L71-3(lines 71 72) the Hoare annotation is: false [2021-11-20 07:09:36,807 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 159) no Hoare annotation was computed. [2021-11-20 07:09:36,807 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 142 161) no Hoare annotation was computed. [2021-11-20 07:09:36,807 INFO L858 garLoopResultBuilder]: For program point L154-2(lines 154 159) no Hoare annotation was computed. [2021-11-20 07:09:36,808 INFO L858 garLoopResultBuilder]: For program point L55(lines 25 163) no Hoare annotation was computed. [2021-11-20 07:09:36,808 INFO L858 garLoopResultBuilder]: For program point L122-1(lines 25 163) no Hoare annotation was computed. [2021-11-20 07:09:36,808 INFO L858 garLoopResultBuilder]: For program point L56(lines 56 62) no Hoare annotation was computed. [2021-11-20 07:09:36,808 INFO L858 garLoopResultBuilder]: For program point L106(lines 106 107) no Hoare annotation was computed. [2021-11-20 07:09:36,808 INFO L858 garLoopResultBuilder]: For program point L106-2(lines 103 117) no Hoare annotation was computed. [2021-11-20 07:09:36,808 INFO L858 garLoopResultBuilder]: For program point L57-2(lines 57 58) no Hoare annotation was computed. [2021-11-20 07:09:36,808 INFO L854 garLoopResultBuilder]: At program point L57-3(lines 57 58) the Hoare annotation is: false [2021-11-20 07:09:36,808 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 07:09:36,809 INFO L854 garLoopResultBuilder]: At program point L108-1(lines 103 117) the Hoare annotation is: false [2021-11-20 07:09:36,809 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-11-20 07:09:36,809 INFO L858 garLoopResultBuilder]: For program point L93-2(lines 89 100) no Hoare annotation was computed. [2021-11-20 07:09:36,809 INFO L858 garLoopResultBuilder]: For program point L60-2(lines 60 61) no Hoare annotation was computed. [2021-11-20 07:09:36,809 INFO L854 garLoopResultBuilder]: At program point L60-3(lines 60 61) the Hoare annotation is: false [2021-11-20 07:09:36,809 INFO L858 garLoopResultBuilder]: For program point L176(lines 176 179) no Hoare annotation was computed. [2021-11-20 07:09:36,809 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 07:09:36,809 INFO L858 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-11-20 07:09:36,809 INFO L858 garLoopResultBuilder]: For program point L144(lines 144 153) no Hoare annotation was computed. [2021-11-20 07:09:36,810 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 47) no Hoare annotation was computed. [2021-11-20 07:09:36,810 INFO L858 garLoopResultBuilder]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2021-11-20 07:09:36,810 INFO L854 garLoopResultBuilder]: At program point L29-2(lines 29 34) the Hoare annotation is: (and (= |ULTIMATE.start_fmod_double_~y#1| (fp.neg (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-20 07:09:36,810 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 113) no Hoare annotation was computed. [2021-11-20 07:09:36,810 INFO L854 garLoopResultBuilder]: At program point L162(lines 25 163) the Hoare annotation is: (exists ((|ULTIMATE.start_fmod_double_~x#1| (_ FloatingPoint 11 53))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven |ULTIMATE.start_fmod_double_~x#1| (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_double_#res#1|)) [2021-11-20 07:09:36,810 INFO L854 garLoopResultBuilder]: At program point L129-2(lines 129 133) the Hoare annotation is: false [2021-11-20 07:09:36,810 INFO L858 garLoopResultBuilder]: For program point L129-3(lines 25 163) no Hoare annotation was computed. [2021-11-20 07:09:36,811 INFO L858 garLoopResultBuilder]: For program point L147(lines 147 153) no Hoare annotation was computed. [2021-11-20 07:09:36,811 INFO L858 garLoopResultBuilder]: For program point L81(lines 81 87) no Hoare annotation was computed. [2021-11-20 07:09:36,811 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 53) no Hoare annotation was computed. [2021-11-20 07:09:36,811 INFO L858 garLoopResultBuilder]: For program point L81-2(lines 25 163) no Hoare annotation was computed. [2021-11-20 07:09:36,811 INFO L858 garLoopResultBuilder]: For program point L48-2(lines 25 163) no Hoare annotation was computed. [2021-11-20 07:09:36,811 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 07:09:36,811 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-11-20 07:09:36,812 INFO L861 garLoopResultBuilder]: At program point L181(lines 165 182) the Hoare annotation is: true [2021-11-20 07:09:36,812 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 50) no Hoare annotation was computed. [2021-11-20 07:09:36,812 INFO L858 garLoopResultBuilder]: For program point L66(lines 25 163) no Hoare annotation was computed. [2021-11-20 07:09:36,812 INFO L858 garLoopResultBuilder]: For program point L67(lines 67 73) no Hoare annotation was computed. [2021-11-20 07:09:36,812 INFO L858 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2021-11-20 07:09:36,812 INFO L854 garLoopResultBuilder]: At program point L18(line 18) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res#1|) [2021-11-20 07:09:36,812 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 161) no Hoare annotation was computed. [2021-11-20 07:09:36,812 INFO L858 garLoopResultBuilder]: For program point L35(lines 35 40) no Hoare annotation was computed. [2021-11-20 07:09:36,812 INFO L858 garLoopResultBuilder]: For program point L35-1(lines 25 163) no Hoare annotation was computed. [2021-11-20 07:09:36,813 INFO L858 garLoopResultBuilder]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2021-11-20 07:09:36,817 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-20 07:09:36,819 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:09:36,832 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:09:36,833 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:09:36,833 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] [2021-11-20 07:09:36,833 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:09:36,834 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] [2021-11-20 07:09:36,835 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:09:36,835 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:09:36,835 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] [2021-11-20 07:09:36,835 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:09:36,835 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] [2021-11-20 07:09:36,837 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:09:36,837 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:09:36,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:09:36 BoogieIcfgContainer [2021-11-20 07:09:36,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:09:36,838 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:09:36,839 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:09:36,839 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:09:36,839 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:08:09" (3/4) ... [2021-11-20 07:09:36,842 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 07:09:36,855 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-20 07:09:36,855 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-20 07:09:36,855 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 07:09:36,855 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 07:09:36,903 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:09:36,903 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:09:36,904 INFO L158 Benchmark]: Toolchain (without parser) took 91420.15ms. Allocated memory was 50.3MB in the beginning and 71.3MB in the end (delta: 21.0MB). Free memory was 26.5MB in the beginning and 43.2MB in the end (delta: -16.6MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2021-11-20 07:09:36,904 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 50.3MB. Free memory is still 30.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:09:36,905 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.93ms. Allocated memory was 50.3MB in the beginning and 71.3MB in the end (delta: 21.0MB). Free memory was 26.3MB in the beginning and 51.0MB in the end (delta: -24.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-11-20 07:09:36,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.68ms. Allocated memory is still 71.3MB. Free memory was 51.0MB in the beginning and 48.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:09:36,906 INFO L158 Benchmark]: Boogie Preprocessor took 93.22ms. Allocated memory is still 71.3MB. Free memory was 48.8MB in the beginning and 46.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:09:36,906 INFO L158 Benchmark]: RCFGBuilder took 3590.67ms. Allocated memory is still 71.3MB. Free memory was 46.7MB in the beginning and 43.2MB in the end (delta: 3.5MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2021-11-20 07:09:36,906 INFO L158 Benchmark]: TraceAbstraction took 87201.37ms. Allocated memory is still 71.3MB. Free memory was 42.6MB in the beginning and 46.1MB in the end (delta: -3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:09:36,907 INFO L158 Benchmark]: Witness Printer took 65.08ms. Allocated memory is still 71.3MB. Free memory was 46.1MB in the beginning and 43.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:09:36,910 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 50.3MB. Free memory is still 30.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.93ms. Allocated memory was 50.3MB in the beginning and 71.3MB in the end (delta: 21.0MB). Free memory was 26.3MB in the beginning and 51.0MB in the end (delta: -24.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.68ms. Allocated memory is still 71.3MB. Free memory was 51.0MB in the beginning and 48.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 93.22ms. Allocated memory is still 71.3MB. Free memory was 48.8MB in the beginning and 46.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 3590.67ms. Allocated memory is still 71.3MB. Free memory was 46.7MB in the beginning and 43.2MB in the end (delta: 3.5MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * TraceAbstraction took 87201.37ms. Allocated memory is still 71.3MB. Free memory was 42.6MB in the beginning and 46.1MB in the end (delta: -3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 65.08ms. Allocated memory is still 71.3MB. Free memory was 46.1MB in the beginning and 43.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 177]: 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, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 87.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 632 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 115 IncrementalHoareTripleChecker+Unchecked, 472 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 160 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 32.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 34 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 6.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 68.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 13 QuantifiedInterpolants, 413 SizeOfPredicates, 18 NumberOfNonLiveVariables, 175 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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: 18]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant [2021-11-20 07:09:36,938 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:09:36,938 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:09:36,939 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] [2021-11-20 07:09:36,939 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:09:36,939 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] [2021-11-20 07:09:36,939 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:09:36,939 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:09:36,940 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] [2021-11-20 07:09:36,940 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:09:36,940 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_fmod_double_~x#1 : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x#1, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())), ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x#1, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()))) == \result) - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant [2021-11-20 07:09:36,940 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:09:36,941 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2021-11-20 07:09:37,167 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-20 07:09:37,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e0b0e7e-9408-4b94-934e-5d77e3f7ff2e/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE