./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY --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 72455efc81eec5ddd76b20b40b527abca0a7be39904d76400cfd4c88dae80563 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:12:43,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:12:43,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:12:43,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:12:43,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:12:43,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:12:43,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:12:43,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:12:43,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:12:43,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:12:43,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:12:43,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:12:43,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:12:43,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:12:43,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:12:43,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:12:43,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:12:43,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:12:43,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:12:43,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:12:43,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:12:43,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:12:43,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:12:43,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:12:43,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:12:43,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:12:43,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:12:43,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:12:43,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:12:43,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:12:43,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:12:43,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:12:43,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:12:43,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:12:43,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:12:43,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:12:43,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:12:43,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:12:43,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:12:43,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:12:43,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:12:43,463 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 08:12:43,496 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:12:43,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:12:43,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:12:43,497 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:12:43,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:12:43,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:12:43,499 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:12:43,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:12:43,499 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:12:43,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:12:43,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:12:43,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:12:43,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:12:43,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:12:43,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:12:43,501 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:12:43,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:12:43,502 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:12:43,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:12:43,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:12:43,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:12:43,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:12:43,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:12:43,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:12:43,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:12:43,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:12:43,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:12:43,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:12:43,504 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:12:43,505 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:12:43,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:12:43,505 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:12:43,505 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_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72455efc81eec5ddd76b20b40b527abca0a7be39904d76400cfd4c88dae80563 [2021-11-07 08:12:43,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:12:43,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:12:43,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:12:43,852 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:12:43,853 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:12:43,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2021-11-07 08:12:43,927 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/data/fc3c6139e/010661da53bc42a48920cf5c32883979/FLAG6ac6d54eb [2021-11-07 08:12:44,427 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:12:44,428 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2021-11-07 08:12:44,439 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/data/fc3c6139e/010661da53bc42a48920cf5c32883979/FLAG6ac6d54eb [2021-11-07 08:12:44,790 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/data/fc3c6139e/010661da53bc42a48920cf5c32883979 [2021-11-07 08:12:44,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:12:44,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:12:44,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:12:44,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:12:44,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:12:44,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:12:44" (1/1) ... [2021-11-07 08:12:44,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@329a352d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:44, skipping insertion in model container [2021-11-07 08:12:44,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:12:44" (1/1) ... [2021-11-07 08:12:44,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:12:44,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:12:45,045 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c[2110,2123] [2021-11-07 08:12:45,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:12:45,059 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:12:45,092 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c[2110,2123] [2021-11-07 08:12:45,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:12:45,110 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:12:45,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:45 WrapperNode [2021-11-07 08:12:45,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:12:45,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:12:45,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:12:45,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:12:45,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:45" (1/1) ... [2021-11-07 08:12:45,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:45" (1/1) ... [2021-11-07 08:12:45,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:12:45,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:12:45,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:12:45,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:12:45,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:45" (1/1) ... [2021-11-07 08:12:45,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:45" (1/1) ... [2021-11-07 08:12:45,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:45" (1/1) ... [2021-11-07 08:12:45,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:45" (1/1) ... [2021-11-07 08:12:45,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:45" (1/1) ... [2021-11-07 08:12:45,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:45" (1/1) ... [2021-11-07 08:12:45,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:45" (1/1) ... [2021-11-07 08:12:45,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:12:45,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:12:45,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:12:45,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:12:45,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:45" (1/1) ... [2021-11-07 08:12:45,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:12:45,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:12:45,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:12:45,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:12:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:12:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:12:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-07 08:12:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 08:12:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-07 08:12:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:12:45,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:12:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 08:12:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:12:45,640 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:12:45,641 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-07 08:12:45,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:12:45 BoogieIcfgContainer [2021-11-07 08:12:45,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:12:45,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:12:45,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:12:45,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:12:45,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:12:44" (1/3) ... [2021-11-07 08:12:45,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a79819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:12:45, skipping insertion in model container [2021-11-07 08:12:45,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:45" (2/3) ... [2021-11-07 08:12:45,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a79819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:12:45, skipping insertion in model container [2021-11-07 08:12:45,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:12:45" (3/3) ... [2021-11-07 08:12:45,666 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a.c [2021-11-07 08:12:45,671 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:12:45,672 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 08:12:45,728 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:12:45,736 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 [2021-11-07 08:12:45,737 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 08:12:45,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 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) [2021-11-07 08:12:45,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 08:12:45,760 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:12:45,761 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:12:45,762 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:12:45,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:12:45,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2021-11-07 08:12:45,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:12:45,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761970517] [2021-11-07 08:12:45,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:12:45,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:12:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:12:45,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:12:45,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:12:45,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761970517] [2021-11-07 08:12:45,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761970517] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:12:45,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:12:45,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:12:45,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380106908] [2021-11-07 08:12:45,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 08:12:45,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:12:46,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 08:12:46,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:12:46,007 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 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) [2021-11-07 08:12:46,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:12:46,024 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2021-11-07 08:12:46,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 08:12:46,026 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 [2021-11-07 08:12:46,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:12:46,034 INFO L225 Difference]: With dead ends: 64 [2021-11-07 08:12:46,035 INFO L226 Difference]: Without dead ends: 30 [2021-11-07 08:12:46,038 INFO L786 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 [2021-11-07 08:12:46,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-07 08:12:46,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-11-07 08:12:46,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 29 states have internal predecessors, (44), 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) [2021-11-07 08:12:46,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2021-11-07 08:12:46,077 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2021-11-07 08:12:46,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:12:46,078 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2021-11-07 08:12:46,078 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) [2021-11-07 08:12:46,078 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2021-11-07 08:12:46,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 08:12:46,079 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:12:46,080 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:12:46,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:12:46,081 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:12:46,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:12:46,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2021-11-07 08:12:46,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:12:46,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432086682] [2021-11-07 08:12:46,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:12:46,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:12:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:12:46,145 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:12:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:12:46,210 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:12:46,210 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 08:12:46,212 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 08:12:46,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:12:46,219 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-07 08:12:46,222 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 08:12:46,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:12:46 BoogieIcfgContainer [2021-11-07 08:12:46,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 08:12:46,256 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:12:46,256 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:12:46,256 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:12:46,257 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:12:45" (3/4) ... [2021-11-07 08:12:46,261 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 08:12:46,261 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:12:46,264 INFO L168 Benchmark]: Toolchain (without parser) took 1467.39 ms. Allocated memory was 83.9 MB in the beginning and 109.1 MB in the end (delta: 25.2 MB). Free memory was 48.1 MB in the beginning and 72.8 MB in the end (delta: -24.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:12:46,264 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 65.0 MB in the beginning and 64.9 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:12:46,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.86 ms. Allocated memory was 83.9 MB in the beginning and 109.1 MB in the end (delta: 25.2 MB). Free memory was 47.8 MB in the beginning and 84.5 MB in the end (delta: -36.7 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-11-07 08:12:46,266 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.26 ms. Allocated memory is still 109.1 MB. Free memory was 84.5 MB in the beginning and 82.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:12:46,267 INFO L168 Benchmark]: Boogie Preprocessor took 36.30 ms. Allocated memory is still 109.1 MB. Free memory was 82.8 MB in the beginning and 81.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:12:46,268 INFO L168 Benchmark]: RCFGBuilder took 443.81 ms. Allocated memory is still 109.1 MB. Free memory was 81.4 MB in the beginning and 69.1 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 08:12:46,269 INFO L168 Benchmark]: TraceAbstraction took 610.98 ms. Allocated memory is still 109.1 MB. Free memory was 68.4 MB in the beginning and 73.2 MB in the end (delta: -4.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:12:46,269 INFO L168 Benchmark]: Witness Printer took 5.38 ms. Allocated memory is still 109.1 MB. Free memory was 73.2 MB in the beginning and 72.8 MB in the end (delta: 457.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:12:46,274 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 65.0 MB in the beginning and 64.9 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 313.86 ms. Allocated memory was 83.9 MB in the beginning and 109.1 MB in the end (delta: 25.2 MB). Free memory was 47.8 MB in the beginning and 84.5 MB in the end (delta: -36.7 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.26 ms. Allocated memory is still 109.1 MB. Free memory was 84.5 MB in the beginning and 82.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.30 ms. Allocated memory is still 109.1 MB. Free memory was 82.8 MB in the beginning and 81.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 443.81 ms. Allocated memory is still 109.1 MB. Free memory was 81.4 MB in the beginning and 69.1 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 610.98 ms. Allocated memory is still 109.1 MB. Free memory was 68.4 MB in the beginning and 73.2 MB in the end (delta: -4.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.38 ms. Allocated memory is still 109.1 MB. Free memory was 73.2 MB in the beginning and 72.8 MB in the end (delta: 457.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 98]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftRight at line 43, overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 93, overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryDOUBLEComparisonOperation at line 97. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double x = -0.0; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L32] COND FALSE !(j0 < 0) [L43] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L44] COND TRUE ((i0 & i) | i1) == 0 [L45] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] double res = ceil_double(x); [L97] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L98] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, 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=33occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 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 [2021-11-07 08:12:46,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/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_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY --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 72455efc81eec5ddd76b20b40b527abca0a7be39904d76400cfd4c88dae80563 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:12:49,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:12:49,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:12:49,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:12:49,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:12:49,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:12:49,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:12:49,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:12:49,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:12:49,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:12:49,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:12:49,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:12:49,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:12:49,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:12:49,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:12:49,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:12:49,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:12:49,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:12:49,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:12:49,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:12:49,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:12:49,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:12:49,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:12:49,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:12:49,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:12:49,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:12:49,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:12:49,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:12:49,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:12:49,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:12:49,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:12:49,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:12:49,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:12:49,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:12:49,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:12:49,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:12:49,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:12:49,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:12:49,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:12:49,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:12:49,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:12:49,424 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-07 08:12:49,489 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:12:49,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:12:49,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:12:49,490 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:12:49,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:12:49,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:12:49,493 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:12:49,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:12:49,494 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:12:49,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:12:49,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:12:49,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:12:49,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:12:49,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:12:49,497 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 08:12:49,497 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 08:12:49,497 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:12:49,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:12:49,497 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:12:49,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:12:49,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:12:49,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:12:49,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:12:49,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:12:49,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:12:49,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:12:49,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:12:49,500 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-07 08:12:49,500 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 08:12:49,501 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:12:49,501 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:12:49,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:12:49,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:12:49,502 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 08:12:49,502 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_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72455efc81eec5ddd76b20b40b527abca0a7be39904d76400cfd4c88dae80563 [2021-11-07 08:12:50,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:12:50,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:12:50,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:12:50,057 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:12:50,058 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:12:50,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2021-11-07 08:12:50,141 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/data/4c57b3b64/e4d0c3d7b3244f1889c45eb9bcbe04c8/FLAG1aa8c9b1c [2021-11-07 08:12:50,738 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:12:50,739 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2021-11-07 08:12:50,748 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/data/4c57b3b64/e4d0c3d7b3244f1889c45eb9bcbe04c8/FLAG1aa8c9b1c [2021-11-07 08:12:51,031 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/data/4c57b3b64/e4d0c3d7b3244f1889c45eb9bcbe04c8 [2021-11-07 08:12:51,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:12:51,035 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:12:51,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:12:51,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:12:51,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:12:51,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:12:51" (1/1) ... [2021-11-07 08:12:51,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e018d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:51, skipping insertion in model container [2021-11-07 08:12:51,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:12:51" (1/1) ... [2021-11-07 08:12:51,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:12:51,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:12:51,232 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c[2110,2123] [2021-11-07 08:12:51,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:12:51,250 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:12:51,281 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c[2110,2123] [2021-11-07 08:12:51,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:12:51,349 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:12:51,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:51 WrapperNode [2021-11-07 08:12:51,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:12:51,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:12:51,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:12:51,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:12:51,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:51" (1/1) ... [2021-11-07 08:12:51,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:51" (1/1) ... [2021-11-07 08:12:51,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:12:51,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:12:51,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:12:51,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:12:51,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:51" (1/1) ... [2021-11-07 08:12:51,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:51" (1/1) ... [2021-11-07 08:12:51,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:51" (1/1) ... [2021-11-07 08:12:51,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:51" (1/1) ... [2021-11-07 08:12:51,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:51" (1/1) ... [2021-11-07 08:12:51,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:51" (1/1) ... [2021-11-07 08:12:51,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:51" (1/1) ... [2021-11-07 08:12:51,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:12:51,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:12:51,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:12:51,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:12:51,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:51" (1/1) ... [2021-11-07 08:12:51,446 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:12:51,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:12:51,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:12:51,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:12:51,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-07 08:12:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-07 08:12:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 08:12:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:12:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 08:12:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:12:51,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:12:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 08:12:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:12:53,140 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:12:53,141 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-07 08:12:53,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:12:53 BoogieIcfgContainer [2021-11-07 08:12:53,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:12:53,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:12:53,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:12:53,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:12:53,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:12:51" (1/3) ... [2021-11-07 08:12:53,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e434691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:12:53, skipping insertion in model container [2021-11-07 08:12:53,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:51" (2/3) ... [2021-11-07 08:12:53,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e434691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:12:53, skipping insertion in model container [2021-11-07 08:12:53,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:12:53" (3/3) ... [2021-11-07 08:12:53,153 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a.c [2021-11-07 08:12:53,158 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:12:53,159 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 08:12:53,207 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:12:53,215 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 [2021-11-07 08:12:53,229 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 08:12:53,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 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) [2021-11-07 08:12:53,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 08:12:53,251 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:12:53,252 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:12:53,253 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:12:53,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:12:53,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2021-11-07 08:12:53,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 08:12:53,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455208144] [2021-11-07 08:12:53,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:12:53,301 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 08:12:53,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 08:12:53,307 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 08:12:53,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 08:12:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:12:53,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 08:12:53,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:12:53,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:12:53,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 08:12:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:12:53,526 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 08:12:53,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455208144] [2021-11-07 08:12:53,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455208144] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 08:12:53,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:12:53,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 08:12:53,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625733602] [2021-11-07 08:12:53,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 08:12:53,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 08:12:53,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 08:12:53,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:12:53,557 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 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) [2021-11-07 08:12:53,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:12:53,602 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2021-11-07 08:12:53,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 08:12:53,617 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 [2021-11-07 08:12:53,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:12:53,629 INFO L225 Difference]: With dead ends: 64 [2021-11-07 08:12:53,644 INFO L226 Difference]: Without dead ends: 30 [2021-11-07 08:12:53,647 INFO L786 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 [2021-11-07 08:12:53,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-07 08:12:53,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-11-07 08:12:53,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 29 states have internal predecessors, (44), 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) [2021-11-07 08:12:53,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2021-11-07 08:12:53,721 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2021-11-07 08:12:53,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:12:53,722 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2021-11-07 08:12:53,722 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) [2021-11-07 08:12:53,722 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2021-11-07 08:12:53,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 08:12:53,723 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:12:53,724 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:12:53,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 08:12:53,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 08:12:53,925 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:12:53,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:12:53,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2021-11-07 08:12:53,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 08:12:53,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111391735] [2021-11-07 08:12:53,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:12:53,928 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 08:12:53,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 08:12:53,929 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 08:12:53,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 08:12:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:12:54,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 08:12:54,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:12:54,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:12:54,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 08:12:54,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:12:54,610 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 08:12:54,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111391735] [2021-11-07 08:12:54,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111391735] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 08:12:54,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:12:54,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 08:12:54,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477177438] [2021-11-07 08:12:54,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 08:12:54,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 08:12:54,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 08:12:54,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 08:12:54,616 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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) [2021-11-07 08:12:54,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:12:54,972 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2021-11-07 08:12:54,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 08:12:54,973 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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 11 [2021-11-07 08:12:54,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:12:54,974 INFO L225 Difference]: With dead ends: 37 [2021-11-07 08:12:54,974 INFO L226 Difference]: Without dead ends: 16 [2021-11-07 08:12:54,975 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-07 08:12:54,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-07 08:12:54,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-07 08:12:54,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:12:54,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-11-07 08:12:54,980 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 11 [2021-11-07 08:12:54,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:12:54,980 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-11-07 08:12:54,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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) [2021-11-07 08:12:54,981 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-11-07 08:12:54,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 08:12:54,982 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:12:54,982 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:12:55,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 08:12:55,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 08:12:55,183 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:12:55,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:12:55,184 INFO L85 PathProgramCache]: Analyzing trace with hash -713684991, now seen corresponding path program 1 times [2021-11-07 08:12:55,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 08:12:55,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037639555] [2021-11-07 08:12:55,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:12:55,185 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 08:12:55,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 08:12:55,188 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 08:12:55,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 08:12:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:12:55,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 08:12:55,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:12:55,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:12:55,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 08:13:00,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:00,304 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 08:13:00,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037639555] [2021-11-07 08:13:00,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037639555] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 08:13:00,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:13:00,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-07 08:13:00,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212231204] [2021-11-07 08:13:00,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:13:00,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 08:13:00,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:13:00,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:13:00,308 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-11-07 08:13:01,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:01,162 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-11-07 08:13:01,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:13:01,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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 [2021-11-07 08:13:01,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:01,173 INFO L225 Difference]: With dead ends: 23 [2021-11-07 08:13:01,173 INFO L226 Difference]: Without dead ends: 16 [2021-11-07 08:13:01,174 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:13:01,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-07 08:13:01,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-07 08:13:01,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 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) [2021-11-07 08:13:01,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-11-07 08:13:01,178 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 14 [2021-11-07 08:13:01,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:13:01,179 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-11-07 08:13:01,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-11-07 08:13:01,179 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-11-07 08:13:01,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 08:13:01,180 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:13:01,181 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:13:01,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 08:13:01,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 08:13:01,393 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:13:01,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:13:01,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1568599403, now seen corresponding path program 1 times [2021-11-07 08:13:01,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 08:13:01,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053427836] [2021-11-07 08:13:01,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:01,396 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 08:13:01,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 08:13:01,397 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 08:13:01,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 08:13:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:13:01,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 08:13:01,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:13:01,759 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 45 treesize of output 39 [2021-11-07 08:13:01,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:01,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 08:13:02,040 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 45 treesize of output 39 [2021-11-07 08:13:02,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:02,158 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 08:13:02,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053427836] [2021-11-07 08:13:02,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053427836] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 08:13:02,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:13:02,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-07 08:13:02,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340178517] [2021-11-07 08:13:02,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:13:02,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 08:13:02,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:13:02,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:13:02,163 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 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) [2021-11-07 08:13:02,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:02,426 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-11-07 08:13:02,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 08:13:02,426 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 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 15 [2021-11-07 08:13:02,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:02,427 INFO L225 Difference]: With dead ends: 16 [2021-11-07 08:13:02,427 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 08:13:02,428 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-11-07 08:13:02,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 08:13:02,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 08:13:02,428 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) [2021-11-07 08:13:02,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 08:13:02,429 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-11-07 08:13:02,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:13:02,429 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:13:02,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 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) [2021-11-07 08:13:02,430 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 08:13:02,430 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 08:13:02,435 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 08:13:02,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 08:13:02,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 08:13:02,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 08:13:02,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:13:02,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:13:02,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:13:02,970 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 61) no Hoare annotation was computed. [2021-11-07 08:13:02,971 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-11-07 08:13:02,971 INFO L860 garLoopResultBuilder]: At program point L102(lines 85 103) the Hoare annotation is: true [2021-11-07 08:13:02,971 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 08:13:02,971 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 08:13:02,971 INFO L857 garLoopResultBuilder]: For program point L53(lines 53 75) no Hoare annotation was computed. [2021-11-07 08:13:02,972 INFO L857 garLoopResultBuilder]: For program point L37(lines 37 40) no Hoare annotation was computed. [2021-11-07 08:13:02,972 INFO L857 garLoopResultBuilder]: For program point L62(lines 62 74) no Hoare annotation was computed. [2021-11-07 08:13:02,972 INFO L857 garLoopResultBuilder]: For program point L54(lines 54 57) no Hoare annotation was computed. [2021-11-07 08:13:02,972 INFO L857 garLoopResultBuilder]: For program point L46(lines 46 51) no Hoare annotation was computed. [2021-11-07 08:13:02,972 INFO L857 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2021-11-07 08:13:02,973 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2021-11-07 08:13:02,973 INFO L857 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2021-11-07 08:13:02,973 INFO L857 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2021-11-07 08:13:02,973 INFO L857 garLoopResultBuilder]: For program point L97(lines 97 100) no Hoare annotation was computed. [2021-11-07 08:13:02,973 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 71) no Hoare annotation was computed. [2021-11-07 08:13:02,973 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 75) no Hoare annotation was computed. [2021-11-07 08:13:02,974 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-11-07 08:13:02,974 INFO L857 garLoopResultBuilder]: For program point L32(lines 32 52) no Hoare annotation was computed. [2021-11-07 08:13:02,974 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 08:13:02,974 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2021-11-07 08:13:02,974 INFO L857 garLoopResultBuilder]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2021-11-07 08:13:02,975 INFO L853 garLoopResultBuilder]: At program point L24-2(lines 24 29) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0) (= ULTIMATE.start_main_~x~0 (fp.neg (_ +zero 11 53))) (= (let ((.cse0 (concat (_ bv2147483648 32) (_ bv0 32)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) ULTIMATE.start_ceil_double_~x) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-07 08:13:02,975 INFO L857 garLoopResultBuilder]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2021-11-07 08:13:02,975 INFO L853 garLoopResultBuilder]: At program point L82(lines 21 83) the Hoare annotation is: (let ((.cse0 (let ((.cse1 (concat (_ bv2147483648 32) (_ bv0 32)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (and (= ULTIMATE.start_ceil_double_~i1~0 (_ bv0 32)) (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0) (= ULTIMATE.start_main_~x~0 (fp.neg (_ +zero 11 53))) (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 64))) (and (= (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_3|) (_ bv20 32))) (bvadd (_ bv1023 32) ULTIMATE.start_ceil_double_~j0~0)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_3|)) (fp.neg (_ +zero 11 53))))) (= .cse0 ULTIMATE.start_ceil_double_~x) (= currentRoundingMode roundNearestTiesToEven) (= .cse0 |ULTIMATE.start_ceil_double_#res|) (= ULTIMATE.start_ceil_double_~i0~0 (_ bv2147483648 32)))) [2021-11-07 08:13:02,976 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 41) no Hoare annotation was computed. [2021-11-07 08:13:02,977 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 08:13:02,977 INFO L857 garLoopResultBuilder]: For program point L34(lines 34 40) no Hoare annotation was computed. [2021-11-07 08:13:02,977 INFO L857 garLoopResultBuilder]: For program point L76(lines 76 81) no Hoare annotation was computed. [2021-11-07 08:13:02,977 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 21 83) no Hoare annotation was computed. [2021-11-07 08:13:02,978 INFO L857 garLoopResultBuilder]: For program point L76-2(lines 76 81) no Hoare annotation was computed. [2021-11-07 08:13:02,978 INFO L857 garLoopResultBuilder]: For program point L68(lines 68 69) no Hoare annotation was computed. [2021-11-07 08:13:02,978 INFO L857 garLoopResultBuilder]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2021-11-07 08:13:02,982 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-07 08:13:02,984 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 08:13:02,993 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-07 08:13:03,012 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-07 08:13:03,015 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-11-07 08:13:03,015 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-11-07 08:13:03,016 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-11-07 08:13:03,016 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-11-07 08:13:03,016 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-07 08:13:03,019 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-11-07 08:13:03,032 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-11-07 08:13:03,032 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-11-07 08:13:03,032 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-11-07 08:13:03,033 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-07 08:13:03,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:13:03 BoogieIcfgContainer [2021-11-07 08:13:03,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 08:13:03,036 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:13:03,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:13:03,037 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:13:03,037 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:12:53" (3/4) ... [2021-11-07 08:13:03,040 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 08:13:03,061 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-07 08:13:03,061 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-07 08:13:03,062 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 08:13:03,062 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 08:13:03,105 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((i1 == 0bv32 && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_ceil) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_3 : bv64 :: ~bvand32(2047bv32, ~bvashr32(v_skolemized_q#valueAsBitvector_3[63:32], 20bv32)) == ~bvadd64(1023bv32, j0) && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_3[63:63], v_skolemized_q#valueAsBitvector_3[62:52], v_skolemized_q#valueAsBitvector_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()))) && ~fp~LONGDOUBLE((2147483648bv32 ++ 0bv32)[63:63], (2147483648bv32 ++ 0bv32)[62:52], (2147483648bv32 ++ 0bv32)[51:0]) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE((2147483648bv32 ++ 0bv32)[63:63], (2147483648bv32 ++ 0bv32)[62:52], (2147483648bv32 ++ 0bv32)[51:0]) == \result) && i0 == 2147483648bv32 [2021-11-07 08:13:03,148 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 08:13:03,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:13:03,150 INFO L168 Benchmark]: Toolchain (without parser) took 12114.04 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 38.5 MB in the beginning and 29.7 MB in the end (delta: 8.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-11-07 08:13:03,151 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 58.7 MB. Free memory is still 39.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:13:03,152 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.79 ms. Allocated memory is still 58.7 MB. Free memory was 38.4 MB in the beginning and 42.0 MB in the end (delta: -3.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 08:13:03,152 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.89 ms. Allocated memory is still 58.7 MB. Free memory was 42.0 MB in the beginning and 40.3 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:13:03,153 INFO L168 Benchmark]: Boogie Preprocessor took 40.65 ms. Allocated memory is still 58.7 MB. Free memory was 40.3 MB in the beginning and 38.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:13:03,153 INFO L168 Benchmark]: RCFGBuilder took 1707.10 ms. Allocated memory is still 58.7 MB. Free memory was 38.7 MB in the beginning and 25.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 08:13:03,154 INFO L168 Benchmark]: TraceAbstraction took 9890.38 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 25.6 MB in the beginning and 33.0 MB in the end (delta: -7.5 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. [2021-11-07 08:13:03,154 INFO L168 Benchmark]: Witness Printer took 112.17 ms. Allocated memory is still 81.8 MB. Free memory was 33.0 MB in the beginning and 29.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:13:03,157 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 58.7 MB. Free memory is still 39.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 313.79 ms. Allocated memory is still 58.7 MB. Free memory was 38.4 MB in the beginning and 42.0 MB in the end (delta: -3.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.89 ms. Allocated memory is still 58.7 MB. Free memory was 42.0 MB in the beginning and 40.3 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.65 ms. Allocated memory is still 58.7 MB. Free memory was 40.3 MB in the beginning and 38.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1707.10 ms. Allocated memory is still 58.7 MB. Free memory was 38.7 MB in the beginning and 25.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9890.38 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 25.6 MB in the beginning and 33.0 MB in the end (delta: -7.5 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. * Witness Printer took 112.17 ms. Allocated memory is still 81.8 MB. Free memory was 33.0 MB in the beginning and 29.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,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[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] - 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: 98]: 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, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 73 SDtfs, 75 SDslu, 30 SDs, 0 SdLazy, 43 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 100 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 42 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 92 ConstructedInterpolants, 5 QuantifiedInterpolants, 551 SizeOfPredicates, 19 NumberOfNonLiveVariables, 188 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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: 24]: Loop Invariant [2021-11-07 08:13:03,169 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-07 08:13:03,173 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_ceil && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE((2147483648bv32 ++ 0bv32)[63:63], (2147483648bv32 ++ 0bv32)[62:52], (2147483648bv32 ++ 0bv32)[51:0]) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant [2021-11-07 08:13:03,174 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-11-07 08:13:03,174 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-11-07 08:13:03,175 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-11-07 08:13:03,175 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-11-07 08:13:03,175 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-07 08:13:03,176 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-11-07 08:13:03,176 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-11-07 08:13:03,176 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-11-07 08:13:03,177 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-11-07 08:13:03,177 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((i1 == 0bv32 && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_ceil) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_3 : bv64 :: ~bvand32(2047bv32, ~bvashr32(v_skolemized_q#valueAsBitvector_3[63:32], 20bv32)) == ~bvadd64(1023bv32, j0) && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_3[63:63], v_skolemized_q#valueAsBitvector_3[62:52], v_skolemized_q#valueAsBitvector_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()))) && ~fp~LONGDOUBLE((2147483648bv32 ++ 0bv32)[63:63], (2147483648bv32 ++ 0bv32)[62:52], (2147483648bv32 ++ 0bv32)[51:0]) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE((2147483648bv32 ++ 0bv32)[63:63], (2147483648bv32 ++ 0bv32)[62:52], (2147483648bv32 ++ 0bv32)[51:0]) == \result) && i0 == 2147483648bv32 RESULT: Ultimate proved your program to be correct! [2021-11-07 08:13:03,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc0ed62-e84f-485e-868a-f81c21e7af73/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE