./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/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_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg --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 ............................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/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_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg --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 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:47:13,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:47:13,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:47:13,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:47:13,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:47:13,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:47:13,503 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:47:13,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:47:13,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:47:13,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:47:13,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:47:13,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:47:13,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:47:13,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:47:13,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:47:13,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:47:13,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:47:13,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:47:13,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:47:13,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:47:13,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:47:13,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:47:13,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:47:13,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:47:13,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:47:13,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:47:13,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:47:13,569 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:47:13,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:47:13,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:47:13,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:47:13,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:47:13,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:47:13,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:47:13,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:47:13,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:47:13,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:47:13,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:47:13,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:47:13,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:47:13,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:47:13,592 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:47:13,626 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:47:13,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:47:13,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:47:13,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:47:13,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:47:13,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:47:13,629 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:47:13,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:47:13,630 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:47:13,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:47:13,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:47:13,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:47:13,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:47:13,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:47:13,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:47:13,632 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:47:13,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:47:13,633 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:47:13,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:47:13,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:47:13,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:47:13,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:47:13,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:47:13,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:47:13,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:47:13,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:47:13,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:47:13,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:47:13,636 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:47:13,636 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:47:13,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:47:13,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:47:13,637 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_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72455efc81eec5ddd76b20b40b527abca0a7be39904d76400cfd4c88dae80563 [2021-10-28 08:47:13,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:47:14,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:47:14,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:47:14,012 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:47:14,013 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:47:14,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2021-10-28 08:47:14,090 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/data/15586d947/ab575585a2db463f9d09114787df756d/FLAG46ff8d27a [2021-10-28 08:47:14,679 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:47:14,680 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2021-10-28 08:47:14,688 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/data/15586d947/ab575585a2db463f9d09114787df756d/FLAG46ff8d27a [2021-10-28 08:47:14,997 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/data/15586d947/ab575585a2db463f9d09114787df756d [2021-10-28 08:47:15,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:47:15,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:47:15,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:47:15,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:47:15,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:47:15,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:47:14" (1/1) ... [2021-10-28 08:47:15,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de5fc0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:15, skipping insertion in model container [2021-10-28 08:47:15,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:47:14" (1/1) ... [2021-10-28 08:47:15,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:47:15,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:47:15,319 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_6a5dd460-6f32-4fe0-a26c-74e761b891de/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c[2110,2123] [2021-10-28 08:47:15,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:47:15,335 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:47:15,374 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_6a5dd460-6f32-4fe0-a26c-74e761b891de/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c[2110,2123] [2021-10-28 08:47:15,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:47:15,393 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:47:15,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:15 WrapperNode [2021-10-28 08:47:15,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:47:15,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:47:15,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:47:15,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:47:15,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:15" (1/1) ... [2021-10-28 08:47:15,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:15" (1/1) ... [2021-10-28 08:47:15,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:47:15,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:47:15,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:47:15,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:47:15,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:15" (1/1) ... [2021-10-28 08:47:15,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:15" (1/1) ... [2021-10-28 08:47:15,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:15" (1/1) ... [2021-10-28 08:47:15,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:15" (1/1) ... [2021-10-28 08:47:15,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:15" (1/1) ... [2021-10-28 08:47:15,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:15" (1/1) ... [2021-10-28 08:47:15,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:15" (1/1) ... [2021-10-28 08:47:15,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:47:15,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:47:15,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:47:15,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:47:15,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:15" (1/1) ... [2021-10-28 08:47:15,506 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:47:15,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:47:15,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:47:15,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:47:15,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:47:15,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:47:15,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-28 08:47:15,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 08:47:15,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-28 08:47:15,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:47:15,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:47:15,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 08:47:15,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:47:16,001 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:47:16,002 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-28 08:47:16,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:47:16 BoogieIcfgContainer [2021-10-28 08:47:16,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:47:16,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:47:16,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:47:16,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:47:16,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:47:14" (1/3) ... [2021-10-28 08:47:16,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d543901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:47:16, skipping insertion in model container [2021-10-28 08:47:16,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:15" (2/3) ... [2021-10-28 08:47:16,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d543901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:47:16, skipping insertion in model container [2021-10-28 08:47:16,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:47:16" (3/3) ... [2021-10-28 08:47:16,018 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a.c [2021-10-28 08:47:16,025 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:47:16,026 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 08:47:16,126 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:47:16,135 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 [2021-10-28 08:47:16,136 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 08:47:16,156 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) [2021-10-28 08:47:16,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 08:47:16,170 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:16,171 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:47:16,172 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:47:16,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:16,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2021-10-28 08:47:16,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:47:16,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732724382] [2021-10-28 08:47:16,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:16,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:47:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:47:16,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:16,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:47:16,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732724382] [2021-10-28 08:47:16,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732724382] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:47:16,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:47:16,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:47:16,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421391377] [2021-10-28 08:47:16,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 08:47:16,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:47:16,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 08:47:16,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:47:16,499 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) [2021-10-28 08:47:16,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:16,534 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2021-10-28 08:47:16,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 08:47:16,536 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 [2021-10-28 08:47:16,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:16,549 INFO L225 Difference]: With dead ends: 64 [2021-10-28 08:47:16,551 INFO L226 Difference]: Without dead ends: 30 [2021-10-28 08:47:16,556 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 [2021-10-28 08:47:16,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-28 08:47:16,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-28 08:47:16,603 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) [2021-10-28 08:47:16,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2021-10-28 08:47:16,607 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2021-10-28 08:47:16,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:16,609 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2021-10-28 08:47:16,610 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) [2021-10-28 08:47:16,610 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2021-10-28 08:47:16,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 08:47:16,612 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:16,612 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:47:16,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:47:16,614 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:47:16,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:16,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2021-10-28 08:47:16,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:47:16,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985506024] [2021-10-28 08:47:16,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:16,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:47:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:47:16,739 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:47:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:47:16,837 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:47:16,838 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:47:16,840 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:47:16,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:47:16,847 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 08:47:16,850 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:47:16,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:47:16 BoogieIcfgContainer [2021-10-28 08:47:16,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:47:16,908 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:47:16,909 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:47:16,909 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:47:16,910 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:47:16" (3/4) ... [2021-10-28 08:47:16,914 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:47:16,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:47:16,917 INFO L168 Benchmark]: Toolchain (without parser) took 1913.38 ms. Allocated memory is still 100.7 MB. Free memory was 59.6 MB in the beginning and 75.7 MB in the end (delta: -16.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:47:16,917 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 100.7 MB. Free memory is still 75.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:47:16,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.37 ms. Allocated memory is still 100.7 MB. Free memory was 59.4 MB in the beginning and 74.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:16,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.71 ms. Allocated memory is still 100.7 MB. Free memory was 74.6 MB in the beginning and 72.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:47:16,920 INFO L168 Benchmark]: Boogie Preprocessor took 38.43 ms. Allocated memory is still 100.7 MB. Free memory was 72.8 MB in the beginning and 71.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:47:16,921 INFO L168 Benchmark]: RCFGBuilder took 518.66 ms. Allocated memory is still 100.7 MB. Free memory was 71.5 MB in the beginning and 59.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:16,922 INFO L168 Benchmark]: TraceAbstraction took 900.36 ms. Allocated memory is still 100.7 MB. Free memory was 58.6 MB in the beginning and 76.1 MB in the end (delta: -17.5 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:16,923 INFO L168 Benchmark]: Witness Printer took 6.06 ms. Allocated memory is still 100.7 MB. Free memory was 76.1 MB in the beginning and 75.8 MB in the end (delta: 301.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:47:16,927 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 100.7 MB. Free memory is still 75.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 381.37 ms. Allocated memory is still 100.7 MB. Free memory was 59.4 MB in the beginning and 74.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.71 ms. Allocated memory is still 100.7 MB. Free memory was 74.6 MB in the beginning and 72.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.43 ms. Allocated memory is still 100.7 MB. Free memory was 72.8 MB in the beginning and 71.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 518.66 ms. Allocated memory is still 100.7 MB. Free memory was 71.5 MB in the beginning and 59.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 900.36 ms. Allocated memory is still 100.7 MB. Free memory was 58.6 MB in the beginning and 76.1 MB in the end (delta: -17.5 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.1 GB. * Witness Printer took 6.06 ms. Allocated memory is still 100.7 MB. Free memory was 76.1 MB in the beginning and 75.8 MB in the end (delta: 301.5 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: 0.7s, 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, 0.1s SatisfiabilityAnalysisTime, 0.0s 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 [2021-10-28 08:47:17,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:47:19,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:47:19,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:47:20,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:47:20,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:47:20,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:47:20,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:47:20,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:47:20,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:47:20,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:47:20,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:47:20,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:47:20,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:47:20,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:47:20,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:47:20,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:47:20,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:47:20,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:47:20,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:47:20,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:47:20,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:47:20,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:47:20,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:47:20,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:47:20,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:47:20,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:47:20,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:47:20,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:47:20,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:47:20,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:47:20,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:47:20,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:47:20,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:47:20,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:47:20,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:47:20,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:47:20,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:47:20,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:47:20,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:47:20,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:47:20,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:47:20,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 08:47:20,264 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:47:20,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:47:20,266 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:47:20,266 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:47:20,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:47:20,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:47:20,270 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:47:20,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:47:20,270 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:47:20,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:47:20,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:47:20,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:47:20,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:47:20,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:47:20,274 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 08:47:20,274 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 08:47:20,274 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:47:20,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:47:20,275 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:47:20,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:47:20,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:47:20,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:47:20,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:47:20,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:47:20,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:47:20,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:47:20,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:47:20,278 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 08:47:20,278 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 08:47:20,278 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:47:20,279 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:47:20,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:47:20,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:47:20,280 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 08:47:20,280 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_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72455efc81eec5ddd76b20b40b527abca0a7be39904d76400cfd4c88dae80563 [2021-10-28 08:47:20,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:47:20,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:47:20,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:47:20,785 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:47:20,786 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:47:20,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2021-10-28 08:47:20,878 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/data/7059c35e1/48bd0954a507418e9ffea2c04069e49b/FLAG7d614634a [2021-10-28 08:47:21,652 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:47:21,653 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2021-10-28 08:47:21,662 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/data/7059c35e1/48bd0954a507418e9ffea2c04069e49b/FLAG7d614634a [2021-10-28 08:47:21,965 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/data/7059c35e1/48bd0954a507418e9ffea2c04069e49b [2021-10-28 08:47:21,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:47:21,977 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:47:21,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:47:21,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:47:21,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:47:21,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:47:21" (1/1) ... [2021-10-28 08:47:21,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d33b76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:21, skipping insertion in model container [2021-10-28 08:47:21,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:47:21" (1/1) ... [2021-10-28 08:47:22,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:47:22,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:47:22,261 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_6a5dd460-6f32-4fe0-a26c-74e761b891de/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c[2110,2123] [2021-10-28 08:47:22,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:47:22,295 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:47:22,401 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_6a5dd460-6f32-4fe0-a26c-74e761b891de/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c[2110,2123] [2021-10-28 08:47:22,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:47:22,476 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:47:22,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:22 WrapperNode [2021-10-28 08:47:22,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:47:22,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:47:22,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:47:22,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:47:22,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:22" (1/1) ... [2021-10-28 08:47:22,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:22" (1/1) ... [2021-10-28 08:47:22,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:47:22,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:47:22,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:47:22,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:47:22,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:22" (1/1) ... [2021-10-28 08:47:22,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:22" (1/1) ... [2021-10-28 08:47:22,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:22" (1/1) ... [2021-10-28 08:47:22,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:22" (1/1) ... [2021-10-28 08:47:22,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:22" (1/1) ... [2021-10-28 08:47:22,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:22" (1/1) ... [2021-10-28 08:47:22,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:22" (1/1) ... [2021-10-28 08:47:22,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:47:22,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:47:22,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:47:22,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:47:22,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:22" (1/1) ... [2021-10-28 08:47:22,640 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:47:22,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:47:22,667 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:47:22,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:47:22,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-28 08:47:22,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-28 08:47:22,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 08:47:22,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:47:22,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 08:47:22,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:47:22,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:47:22,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 08:47:22,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:47:24,642 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:47:24,643 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-28 08:47:24,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:47:24 BoogieIcfgContainer [2021-10-28 08:47:24,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:47:24,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:47:24,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:47:24,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:47:24,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:47:21" (1/3) ... [2021-10-28 08:47:24,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413c3e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:47:24, skipping insertion in model container [2021-10-28 08:47:24,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:22" (2/3) ... [2021-10-28 08:47:24,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413c3e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:47:24, skipping insertion in model container [2021-10-28 08:47:24,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:47:24" (3/3) ... [2021-10-28 08:47:24,664 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a.c [2021-10-28 08:47:24,671 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:47:24,672 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 08:47:24,753 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:47:24,760 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 [2021-10-28 08:47:24,760 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 08:47:24,778 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) [2021-10-28 08:47:24,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 08:47:24,786 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:24,786 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:47:24,787 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:47:24,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:24,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2021-10-28 08:47:24,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:47:24,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671344766] [2021-10-28 08:47:24,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:24,812 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:47:24,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:47:24,818 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:47:24,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 08:47:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:47:24,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 08:47:24,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:47:25,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:25,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:47:25,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:25,125 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:47:25,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671344766] [2021-10-28 08:47:25,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671344766] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:47:25,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:47:25,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 08:47:25,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278993543] [2021-10-28 08:47:25,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 08:47:25,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:47:25,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 08:47:25,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:47:25,157 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) [2021-10-28 08:47:25,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:25,178 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2021-10-28 08:47:25,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 08:47:25,180 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 [2021-10-28 08:47:25,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:25,191 INFO L225 Difference]: With dead ends: 64 [2021-10-28 08:47:25,191 INFO L226 Difference]: Without dead ends: 30 [2021-10-28 08:47:25,195 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 [2021-10-28 08:47:25,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-28 08:47:25,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-28 08:47:25,234 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) [2021-10-28 08:47:25,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2021-10-28 08:47:25,237 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2021-10-28 08:47:25,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:25,238 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2021-10-28 08:47:25,239 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) [2021-10-28 08:47:25,239 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2021-10-28 08:47:25,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 08:47:25,240 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:25,240 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:47:25,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:47:25,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:47:25,455 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:47:25,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:25,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2021-10-28 08:47:25,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:47:25,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977521719] [2021-10-28 08:47:25,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:25,459 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:47:25,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:47:25,462 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:47:25,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 08:47:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:47:25,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:47:25,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:47:25,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:25,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:47:26,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:26,166 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:47:26,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977521719] [2021-10-28 08:47:26,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977521719] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:47:26,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:47:26,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 08:47:26,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008567233] [2021-10-28 08:47:26,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:47:26,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:47:26,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:47:26,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:47:26,177 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) [2021-10-28 08:47:26,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:26,550 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2021-10-28 08:47:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:47:26,551 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 [2021-10-28 08:47:26,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:26,552 INFO L225 Difference]: With dead ends: 37 [2021-10-28 08:47:26,552 INFO L226 Difference]: Without dead ends: 16 [2021-10-28 08:47:26,553 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 [2021-10-28 08:47:26,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-28 08:47:26,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-28 08:47:26,557 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) [2021-10-28 08:47:26,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-28 08:47:26,558 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 11 [2021-10-28 08:47:26,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:26,558 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-28 08:47:26,558 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) [2021-10-28 08:47:26,558 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-28 08:47:26,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 08:47:26,559 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:26,559 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:47:26,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:47:26,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:47:26,760 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:47:26,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:26,761 INFO L85 PathProgramCache]: Analyzing trace with hash -713684991, now seen corresponding path program 1 times [2021-10-28 08:47:26,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:47:26,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230338894] [2021-10-28 08:47:26,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:26,763 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:47:26,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:47:26,764 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:47:26,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 08:47:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:47:26,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:47:26,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:47:27,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:27,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:47:32,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:32,283 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:47:32,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [230338894] [2021-10-28 08:47:32,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [230338894] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:47:32,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:47:32,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-28 08:47:32,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091423792] [2021-10-28 08:47:32,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:47:32,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:47:32,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:47:32,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:47:32,290 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) [2021-10-28 08:47:33,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:33,271 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-10-28 08:47:33,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:47:33,282 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 [2021-10-28 08:47:33,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:33,283 INFO L225 Difference]: With dead ends: 23 [2021-10-28 08:47:33,283 INFO L226 Difference]: Without dead ends: 16 [2021-10-28 08:47:33,284 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:47:33,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-28 08:47:33,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-28 08:47:33,288 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) [2021-10-28 08:47:33,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-10-28 08:47:33,289 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 14 [2021-10-28 08:47:33,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:33,289 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-10-28 08:47:33,289 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) [2021-10-28 08:47:33,289 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-10-28 08:47:33,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 08:47:33,291 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:33,291 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:47:33,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-28 08:47:33,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:47:33,493 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:47:33,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:33,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1568599403, now seen corresponding path program 1 times [2021-10-28 08:47:33,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:47:33,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869591828] [2021-10-28 08:47:33,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:33,495 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:47:33,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:47:33,496 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:47:33,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 08:47:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:47:33,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:47:33,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:47:34,018 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 [2021-10-28 08:47:34,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:34,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:47:34,301 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 [2021-10-28 08:47:34,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:34,431 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:47:34,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869591828] [2021-10-28 08:47:34,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869591828] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:47:34,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:47:34,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-28 08:47:34,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857573030] [2021-10-28 08:47:34,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 08:47:34,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:47:34,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 08:47:34,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:47:34,437 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) [2021-10-28 08:47:34,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:34,733 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-10-28 08:47:34,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:47:34,733 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 [2021-10-28 08:47:34,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:34,734 INFO L225 Difference]: With dead ends: 16 [2021-10-28 08:47:34,734 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 08:47:34,735 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 [2021-10-28 08:47:34,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 08:47:34,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 08:47:34,735 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) [2021-10-28 08:47:34,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 08:47:34,736 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-28 08:47:34,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:34,736 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:47:34,736 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) [2021-10-28 08:47:34,736 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:47:34,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 08:47:34,740 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:47:34,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:47:34,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:47:34,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 08:47:34,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:47:35,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:47:35,016 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:47:35,303 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 61) no Hoare annotation was computed. [2021-10-28 08:47:35,303 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-10-28 08:47:35,304 INFO L860 garLoopResultBuilder]: At program point L102(lines 85 103) the Hoare annotation is: true [2021-10-28 08:47:35,304 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 08:47:35,304 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 08:47:35,304 INFO L857 garLoopResultBuilder]: For program point L53(lines 53 75) no Hoare annotation was computed. [2021-10-28 08:47:35,304 INFO L857 garLoopResultBuilder]: For program point L37(lines 37 40) no Hoare annotation was computed. [2021-10-28 08:47:35,305 INFO L857 garLoopResultBuilder]: For program point L62(lines 62 74) no Hoare annotation was computed. [2021-10-28 08:47:35,305 INFO L857 garLoopResultBuilder]: For program point L54(lines 54 57) no Hoare annotation was computed. [2021-10-28 08:47:35,305 INFO L857 garLoopResultBuilder]: For program point L46(lines 46 51) no Hoare annotation was computed. [2021-10-28 08:47:35,305 INFO L857 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2021-10-28 08:47:35,305 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2021-10-28 08:47:35,306 INFO L857 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2021-10-28 08:47:35,306 INFO L857 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2021-10-28 08:47:35,306 INFO L857 garLoopResultBuilder]: For program point L97(lines 97 100) no Hoare annotation was computed. [2021-10-28 08:47:35,306 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 71) no Hoare annotation was computed. [2021-10-28 08:47:35,306 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 75) no Hoare annotation was computed. [2021-10-28 08:47:35,306 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-28 08:47:35,307 INFO L857 garLoopResultBuilder]: For program point L32(lines 32 52) no Hoare annotation was computed. [2021-10-28 08:47:35,307 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 08:47:35,307 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2021-10-28 08:47:35,307 INFO L857 garLoopResultBuilder]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2021-10-28 08:47:35,308 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)) [2021-10-28 08:47:35,308 INFO L857 garLoopResultBuilder]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2021-10-28 08:47:35,308 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)))) [2021-10-28 08:47:35,308 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 41) no Hoare annotation was computed. [2021-10-28 08:47:35,308 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 08:47:35,309 INFO L857 garLoopResultBuilder]: For program point L34(lines 34 40) no Hoare annotation was computed. [2021-10-28 08:47:35,309 INFO L857 garLoopResultBuilder]: For program point L76(lines 76 81) no Hoare annotation was computed. [2021-10-28 08:47:35,309 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 21 83) no Hoare annotation was computed. [2021-10-28 08:47:35,313 INFO L857 garLoopResultBuilder]: For program point L76-2(lines 76 81) no Hoare annotation was computed. [2021-10-28 08:47:35,313 INFO L857 garLoopResultBuilder]: For program point L68(lines 68 69) no Hoare annotation was computed. [2021-10-28 08:47:35,313 INFO L857 garLoopResultBuilder]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2021-10-28 08:47:35,318 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-10-28 08:47:35,319 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:47:35,332 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 08:47:35,339 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 08:47:35,344 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-28 08:47:35,344 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-28 08:47:35,344 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-28 08:47:35,345 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-28 08:47:35,345 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 08:47:35,346 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-28 08:47:35,346 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-28 08:47:35,346 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-28 08:47:35,347 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-28 08:47:35,347 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 08:47:35,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:47:35 BoogieIcfgContainer [2021-10-28 08:47:35,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:47:35,350 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:47:35,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:47:35,351 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:47:35,352 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:47:24" (3/4) ... [2021-10-28 08:47:35,355 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 08:47:35,373 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-28 08:47:35,374 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-28 08:47:35,374 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:47:35,375 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:47:35,426 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 [2021-10-28 08:47:35,472 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:47:35,472 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:47:35,474 INFO L168 Benchmark]: Toolchain (without parser) took 13496.14 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 42.9 MB in the beginning and 32.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:35,475 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 62.9 MB. Free memory is still 43.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:47:35,475 INFO L168 Benchmark]: CACSL2BoogieTranslator took 500.15 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 46.2 MB in the end (delta: -3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:35,476 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.58 ms. Allocated memory is still 62.9 MB. Free memory was 46.2 MB in the beginning and 44.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:47:35,488 INFO L168 Benchmark]: Boogie Preprocessor took 62.48 ms. Allocated memory is still 62.9 MB. Free memory was 44.5 MB in the beginning and 42.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:35,488 INFO L168 Benchmark]: RCFGBuilder took 2015.82 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 29.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:35,489 INFO L168 Benchmark]: TraceAbstraction took 10701.07 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 29.3 MB in the beginning and 35.4 MB in the end (delta: -6.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:35,489 INFO L168 Benchmark]: Witness Printer took 121.77 ms. Allocated memory is still 81.8 MB. Free memory was 35.4 MB in the beginning and 32.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:35,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 62.9 MB. Free memory is still 43.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 500.15 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 46.2 MB in the end (delta: -3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.58 ms. Allocated memory is still 62.9 MB. Free memory was 46.2 MB in the beginning and 44.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.48 ms. Allocated memory is still 62.9 MB. Free memory was 44.5 MB in the beginning and 42.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2015.82 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 29.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10701.07 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 29.3 MB in the beginning and 35.4 MB in the end (delta: -6.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. * Witness Printer took 121.77 ms. Allocated memory is still 81.8 MB. Free memory was 35.4 MB in the beginning and 32.2 MB in the end (delta: 3.1 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: 10.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, 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, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.5s 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, 0.4s SatisfiabilityAnalysisTime, 6.6s 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 [2021-10-28 08:47:35,503 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 08:47:35,507 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 [2021-10-28 08:47:35,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-28 08:47:35,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-28 08:47:35,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-28 08:47:35,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-28 08:47:35,519 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 08:47:35,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-28 08:47:35,521 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-28 08:47:35,521 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-28 08:47:35,521 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-28 08:47:35,521 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! [2021-10-28 08:47:35,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5dd460-6f32-4fe0-a26c-74e761b891de/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...