./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.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_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/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_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/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_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/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 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 ...................................................................................................................................................................................................................................................................................................................... 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_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/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_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/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_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/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 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 09:04:06,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:04:06,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:04:06,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:04:06,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:04:06,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:04:06,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:04:06,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:04:06,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:04:06,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:04:06,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:04:06,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:04:06,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:04:06,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:04:06,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:04:06,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:04:06,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:04:06,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:04:06,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:04:06,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:04:06,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:04:06,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:04:06,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:04:06,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:04:06,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:04:06,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:04:06,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:04:06,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:04:06,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:04:06,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:04:06,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:04:06,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:04:06,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:04:06,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:04:06,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:04:06,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:04:06,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:04:06,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:04:06,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:04:06,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:04:06,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:04:06,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:04:06,929 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:04:06,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:04:06,930 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:04:06,930 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:04:06,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:04:06,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:04:06,941 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:04:06,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:04:06,942 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:04:06,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:04:06,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:04:06,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:04:06,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:04:06,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:04:06,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:04:06,945 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:04:06,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:04:06,946 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:04:06,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:04:06,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:04:06,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:04:06,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:04:06,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:04:06,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:04:06,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:04:06,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:04:06,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:04:06,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:04:06,949 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:04:06,952 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:04:06,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:04:06,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:04:06,953 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_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 [2021-10-28 09:04:07,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:04:07,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:04:07,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:04:07,364 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:04:07,365 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:04:07,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2021-10-28 09:04:07,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/data/7c9468fe1/51eb20b64a7d40bbbc2062b6c3f7f247/FLAG8879da0e7 [2021-10-28 09:04:08,064 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:04:08,065 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2021-10-28 09:04:08,090 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/data/7c9468fe1/51eb20b64a7d40bbbc2062b6c3f7f247/FLAG8879da0e7 [2021-10-28 09:04:08,393 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/data/7c9468fe1/51eb20b64a7d40bbbc2062b6c3f7f247 [2021-10-28 09:04:08,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:04:08,413 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:04:08,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:04:08,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:04:08,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:04:08,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:04:08" (1/1) ... [2021-10-28 09:04:08,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f3a2104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:08, skipping insertion in model container [2021-10-28 09:04:08,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:04:08" (1/1) ... [2021-10-28 09:04:08,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:04:08,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:04:08,738 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_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2021-10-28 09:04:08,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:04:08,755 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:04:08,809 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_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2021-10-28 09:04:08,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:04:08,836 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:04:08,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:08 WrapperNode [2021-10-28 09:04:08,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:04:08,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:04:08,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:04:08,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:04:08,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:08" (1/1) ... [2021-10-28 09:04:08,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:08" (1/1) ... [2021-10-28 09:04:08,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:04:08,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:04:08,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:04:08,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:04:08,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:08" (1/1) ... [2021-10-28 09:04:08,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:08" (1/1) ... [2021-10-28 09:04:08,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:08" (1/1) ... [2021-10-28 09:04:08,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:08" (1/1) ... [2021-10-28 09:04:08,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:08" (1/1) ... [2021-10-28 09:04:08,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:08" (1/1) ... [2021-10-28 09:04:08,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:08" (1/1) ... [2021-10-28 09:04:08,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:04:08,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:04:08,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:04:08,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:04:09,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:08" (1/1) ... [2021-10-28 09:04:09,013 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:04:09,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:09,041 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:09,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:04:09,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:04:09,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:04:09,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-28 09:04:09,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:04:09,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-28 09:04:09,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:04:09,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:04:09,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:04:09,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:04:09,436 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:04:09,436 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-28 09:04:09,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:04:09 BoogieIcfgContainer [2021-10-28 09:04:09,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:04:09,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:04:09,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:04:09,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:04:09,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:04:08" (1/3) ... [2021-10-28 09:04:09,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5826afff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:04:09, skipping insertion in model container [2021-10-28 09:04:09,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:08" (2/3) ... [2021-10-28 09:04:09,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5826afff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:04:09, skipping insertion in model container [2021-10-28 09:04:09,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:04:09" (3/3) ... [2021-10-28 09:04:09,451 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b.c [2021-10-28 09:04:09,457 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:04:09,458 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:04:09,541 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:04:09,552 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 09:04:09,552 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 09:04:09,580 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 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 09:04:09,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:04:09,590 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:04:09,591 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:04:09,605 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:04:09,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:09,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2021-10-28 09:04:09,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:09,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659359982] [2021-10-28 09:04:09,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:09,638 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:09,879 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 09:04:09,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:04:09,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659359982] [2021-10-28 09:04:09,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659359982] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:04:09,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:04:09,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:04:09,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797576340] [2021-10-28 09:04:09,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:04:09,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:04:09,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:04:09,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:04:09,932 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 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 09:04:09,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:04:09,971 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2021-10-28 09:04:09,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:04:09,973 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 09:04:09,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:04:09,984 INFO L225 Difference]: With dead ends: 56 [2021-10-28 09:04:09,986 INFO L226 Difference]: Without dead ends: 26 [2021-10-28 09:04:09,991 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 09:04:10,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-28 09:04:10,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-10-28 09:04:10,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 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 09:04:10,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2021-10-28 09:04:10,042 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2021-10-28 09:04:10,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:04:10,043 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-10-28 09:04:10,044 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 09:04:10,044 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-10-28 09:04:10,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 09:04:10,046 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:04:10,046 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:04:10,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:04:10,047 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:04:10,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:10,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2021-10-28 09:04:10,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:10,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80445913] [2021-10-28 09:04:10,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:10,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:10,183 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:04:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:10,326 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:10,327 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:04:10,330 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:04:10,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:04:10,340 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 09:04:10,344 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:04:10,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:04:10 BoogieIcfgContainer [2021-10-28 09:04:10,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:04:10,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:04:10,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:04:10,439 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:04:10,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:04:09" (3/4) ... [2021-10-28 09:04:10,444 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:04:10,447 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:04:10,450 INFO L168 Benchmark]: Toolchain (without parser) took 2036.01 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 59.3 MB in the beginning and 94.5 MB in the end (delta: -35.2 MB). Peak memory consumption was 488.2 kB. Max. memory is 16.1 GB. [2021-10-28 09:04:10,452 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 94.4 MB. Free memory was 63.8 MB in the beginning and 63.8 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:04:10,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 423.64 ms. Allocated memory is still 94.4 MB. Free memory was 59.2 MB in the beginning and 67.2 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:10,456 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.87 ms. Allocated memory is still 94.4 MB. Free memory was 67.2 MB in the beginning and 65.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:10,458 INFO L168 Benchmark]: Boogie Preprocessor took 74.89 ms. Allocated memory is still 94.4 MB. Free memory was 65.1 MB in the beginning and 63.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:04:10,460 INFO L168 Benchmark]: RCFGBuilder took 447.82 ms. Allocated memory is still 94.4 MB. Free memory was 63.5 MB in the beginning and 50.8 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:10,462 INFO L168 Benchmark]: TraceAbstraction took 996.25 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 50.1 MB in the beginning and 94.5 MB in the end (delta: -44.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:04:10,466 INFO L168 Benchmark]: Witness Printer took 9.16 ms. Allocated memory is still 130.0 MB. Free memory is still 94.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:04:10,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 94.4 MB. Free memory was 63.8 MB in the beginning and 63.8 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 423.64 ms. Allocated memory is still 94.4 MB. Free memory was 59.2 MB in the beginning and 67.2 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.87 ms. Allocated memory is still 94.4 MB. Free memory was 67.2 MB in the beginning and 65.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.89 ms. Allocated memory is still 94.4 MB. Free memory was 65.1 MB in the beginning and 63.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 447.82 ms. Allocated memory is still 94.4 MB. Free memory was 63.5 MB in the beginning and 50.8 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 996.25 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 50.1 MB in the beginning and 94.5 MB in the end (delta: -44.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 9.16 ms. Allocated memory is still 130.0 MB. Free memory is still 94.5 MB. 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: 153]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 139, overapproximation of bitwiseOr at line 61, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L148] double x = -1.0 / 0.0; [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L149] double res = __ieee754_log(x); [L139] return x != x; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L152] COND TRUE !isnan_double(res) [L153] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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: 39 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=29occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 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 09:04:10,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/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 09:04:13,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:04:13,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:04:13,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:04:13,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:04:13,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:04:13,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:04:13,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:04:13,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:04:13,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:04:13,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:04:13,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:04:13,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:04:13,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:04:13,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:04:13,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:04:13,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:04:13,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:04:13,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:04:13,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:04:13,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:04:13,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:04:13,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:04:13,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:04:13,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:04:13,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:04:13,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:04:13,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:04:13,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:04:13,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:04:13,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:04:13,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:04:13,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:04:13,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:04:13,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:04:13,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:04:13,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:04:13,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:04:13,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:04:13,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:04:13,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:04:13,668 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 09:04:13,720 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:04:13,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:04:13,721 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:04:13,721 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:04:13,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:04:13,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:04:13,725 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:04:13,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:04:13,725 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:04:13,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:04:13,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:04:13,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:04:13,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:04:13,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:04:13,728 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:04:13,729 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:04:13,729 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:04:13,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:04:13,729 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:04:13,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:04:13,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:04:13,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:04:13,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:04:13,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:04:13,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:04:13,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:04:13,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:04:13,732 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:04:13,732 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:04:13,733 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:04:13,733 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:04:13,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:04:13,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:04:13,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:04:13,734 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_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 [2021-10-28 09:04:14,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:04:14,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:04:14,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:04:14,270 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:04:14,271 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:04:14,273 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2021-10-28 09:04:14,351 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/data/43a551f95/c3cddd1616fe4375928316315913554e/FLAG4a2e68b28 [2021-10-28 09:04:15,021 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:04:15,022 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2021-10-28 09:04:15,035 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/data/43a551f95/c3cddd1616fe4375928316315913554e/FLAG4a2e68b28 [2021-10-28 09:04:15,313 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/data/43a551f95/c3cddd1616fe4375928316315913554e [2021-10-28 09:04:15,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:04:15,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:04:15,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:04:15,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:04:15,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:04:15,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:04:15" (1/1) ... [2021-10-28 09:04:15,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2758cbf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:15, skipping insertion in model container [2021-10-28 09:04:15,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:04:15" (1/1) ... [2021-10-28 09:04:15,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:04:15,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:04:15,632 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_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2021-10-28 09:04:15,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:04:15,654 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:04:15,790 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_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2021-10-28 09:04:15,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:04:15,818 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:04:15,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:15 WrapperNode [2021-10-28 09:04:15,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:04:15,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:04:15,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:04:15,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:04:15,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:15" (1/1) ... [2021-10-28 09:04:15,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:15" (1/1) ... [2021-10-28 09:04:15,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:04:15,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:04:15,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:04:15,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:04:15,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:15" (1/1) ... [2021-10-28 09:04:15,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:15" (1/1) ... [2021-10-28 09:04:15,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:15" (1/1) ... [2021-10-28 09:04:15,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:15" (1/1) ... [2021-10-28 09:04:15,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:15" (1/1) ... [2021-10-28 09:04:15,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:15" (1/1) ... [2021-10-28 09:04:15,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:15" (1/1) ... [2021-10-28 09:04:16,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:04:16,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:04:16,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:04:16,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:04:16,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:15" (1/1) ... [2021-10-28 09:04:16,024 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:04:16,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:16,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:16,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:04:16,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-28 09:04:16,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-28 09:04:16,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 09:04:16,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:04:16,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 09:04:16,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:04:16,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:04:16,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 09:04:16,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:04:40,267 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:04:40,268 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-28 09:04:40,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:04:40 BoogieIcfgContainer [2021-10-28 09:04:40,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:04:40,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:04:40,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:04:40,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:04:40,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:04:15" (1/3) ... [2021-10-28 09:04:40,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529106a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:04:40, skipping insertion in model container [2021-10-28 09:04:40,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:15" (2/3) ... [2021-10-28 09:04:40,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529106a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:04:40, skipping insertion in model container [2021-10-28 09:04:40,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:04:40" (3/3) ... [2021-10-28 09:04:40,279 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b.c [2021-10-28 09:04:40,286 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:04:40,286 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:04:40,351 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:04:40,363 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 09:04:40,363 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 09:04:40,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 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 09:04:40,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:04:40,385 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:04:40,386 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:04:40,387 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:04:40,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:40,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2021-10-28 09:04:40,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:04:40,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265417687] [2021-10-28 09:04:40,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:40,415 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:04:40,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:04:40,422 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:04:40,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:04:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:41,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 09:04:41,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:41,628 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 09:04:41,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:04:41,815 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 09:04:41,816 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:04:41,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265417687] [2021-10-28 09:04:41,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265417687] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:04:41,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:04:41,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 09:04:41,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646055545] [2021-10-28 09:04:41,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:04:41,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:04:41,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:04:41,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:04:41,843 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 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 09:04:41,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:04:41,861 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2021-10-28 09:04:41,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:04:41,863 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 09:04:41,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:04:41,872 INFO L225 Difference]: With dead ends: 56 [2021-10-28 09:04:41,873 INFO L226 Difference]: Without dead ends: 26 [2021-10-28 09:04:41,875 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 09:04:41,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-28 09:04:41,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-10-28 09:04:41,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 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 09:04:41,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2021-10-28 09:04:41,910 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2021-10-28 09:04:41,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:04:41,910 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-10-28 09:04:41,911 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 09:04:41,911 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-10-28 09:04:41,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 09:04:41,912 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:04:41,912 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:04:41,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:42,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:04:42,126 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:04:42,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:42,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2021-10-28 09:04:42,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:04:42,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535825381] [2021-10-28 09:04:42,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:42,129 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:04:42,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:04:42,131 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:04:42,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:04:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:43,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:04:43,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:44,209 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 09:04:44,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:04:45,190 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 09:04:45,190 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:04:45,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535825381] [2021-10-28 09:04:45,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535825381] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:04:45,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:04:45,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 09:04:45,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118876079] [2021-10-28 09:04:45,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:04:45,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:04:45,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:04:45,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:04:45,195 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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 09:04:48,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:04:48,406 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-10-28 09:04:48,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:04:48,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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 09:04:48,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:04:48,442 INFO L225 Difference]: With dead ends: 31 [2021-10-28 09:04:48,442 INFO L226 Difference]: Without dead ends: 13 [2021-10-28 09:04:48,443 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:04:48,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-28 09:04:48,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-28 09:04:48,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:48,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2021-10-28 09:04:48,446 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2021-10-28 09:04:48,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:04:48,447 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2021-10-28 09:04:48,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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 09:04:48,447 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-10-28 09:04:48,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 09:04:48,448 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:04:48,448 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:04:48,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:48,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:04:48,649 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:04:48,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:48,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1813045648, now seen corresponding path program 1 times [2021-10-28 09:04:48,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:04:48,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522582457] [2021-10-28 09:04:48,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:48,650 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:04:48,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:04:48,652 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:04:48,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:04:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:49,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 09:04:49,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:51,510 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 09:04:51,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:04:58,078 WARN L838 $PredicateComparison]: unable to prove that (= (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start___ieee754_log_~x c_ULTIMATE.start___ieee754_log_~x) c_~zero~0) (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) is different from false [2021-10-28 09:05:00,274 WARN L860 $PredicateComparison]: unable to prove that (= (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start___ieee754_log_~x c_ULTIMATE.start___ieee754_log_~x) c_~zero~0) (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) is different from true [2021-10-28 09:05:20,963 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 09:05:20,963 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:05:20,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522582457] [2021-10-28 09:05:20,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522582457] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:05:20,964 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:05:20,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-28 09:05:20,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289222121] [2021-10-28 09:05:20,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:05:20,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:05:20,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:05:20,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=54, Unknown=2, NotChecked=14, Total=90 [2021-10-28 09:05:20,967 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:23,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:05:23,344 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-28 09:05:23,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:05:23,344 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-28 09:05:23,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:05:23,345 INFO L225 Difference]: With dead ends: 13 [2021-10-28 09:05:23,345 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 09:05:23,346 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=44, Invalid=90, Unknown=2, NotChecked=20, Total=156 [2021-10-28 09:05:23,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 09:05:23,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 09:05:23,346 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 09:05:23,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:05:23,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-28 09:05:23,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:05:23,347 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:05:23,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:23,348 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:05:23,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 09:05:23,351 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:05:23,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-28 09:05:23,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:05:23,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 09:05:23,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:05:23,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:05:23,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:05:23,601 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:05:23,604 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:05:23,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:05:24,473 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 72) no Hoare annotation was computed. [2021-10-28 09:05:24,473 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2021-10-28 09:05:24,474 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2021-10-28 09:05:24,474 INFO L853 garLoopResultBuilder]: At program point L52-2(lines 52 57) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_log_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))) (= (_ +zero 11 53) ~zero~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-28 09:05:24,474 INFO L857 garLoopResultBuilder]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2021-10-28 09:05:24,474 INFO L853 garLoopResultBuilder]: At program point L139(line 139) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_log_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (= (_ +zero 11 53) ~zero~0) (= |ULTIMATE.start___ieee754_log_#res| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-28 09:05:24,475 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 09:05:24,475 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 09:05:24,475 INFO L857 garLoopResultBuilder]: For program point L61(lines 61 62) no Hoare annotation was computed. [2021-10-28 09:05:24,475 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 09:05:24,475 INFO L857 garLoopResultBuilder]: For program point L152(lines 152 155) no Hoare annotation was computed. [2021-10-28 09:05:24,475 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-10-28 09:05:24,476 INFO L857 garLoopResultBuilder]: For program point L86(lines 86 102) no Hoare annotation was computed. [2021-10-28 09:05:24,476 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 119) no Hoare annotation was computed. [2021-10-28 09:05:24,476 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2021-10-28 09:05:24,476 INFO L853 garLoopResultBuilder]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2021-10-28 09:05:24,476 INFO L857 garLoopResultBuilder]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2021-10-28 09:05:24,476 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 09:05:24,477 INFO L860 garLoopResultBuilder]: At program point L157(lines 141 158) the Hoare annotation is: true [2021-10-28 09:05:24,477 INFO L853 garLoopResultBuilder]: At program point L124(lines 47 126) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_log_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))) (= (_ +zero 11 53) ~zero~0) (= |ULTIMATE.start___ieee754_log_#res| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-28 09:05:24,477 INFO L857 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-10-28 09:05:24,477 INFO L857 garLoopResultBuilder]: For program point L87(lines 87 94) no Hoare annotation was computed. [2021-10-28 09:05:24,477 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2021-10-28 09:05:24,478 INFO L853 garLoopResultBuilder]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2021-10-28 09:05:24,478 INFO L857 garLoopResultBuilder]: For program point L96(lines 96 101) no Hoare annotation was computed. [2021-10-28 09:05:24,478 INFO L857 garLoopResultBuilder]: For program point L63(lines 63 64) no Hoare annotation was computed. [2021-10-28 09:05:24,478 INFO L857 garLoopResultBuilder]: For program point L121(lines 121 124) no Hoare annotation was computed. [2021-10-28 09:05:24,478 INFO L857 garLoopResultBuilder]: For program point L88(lines 88 93) no Hoare annotation was computed. [2021-10-28 09:05:24,478 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 125) no Hoare annotation was computed. [2021-10-28 09:05:24,483 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 09:05:24,484 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:05:24,498 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,505 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,508 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,509 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,509 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,509 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,509 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,510 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,510 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,511 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,511 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,511 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,511 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,512 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,512 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,512 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,515 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,515 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,516 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,517 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,517 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,520 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,521 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:05:24 BoogieIcfgContainer [2021-10-28 09:05:24,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:05:24,529 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:05:24,529 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:05:24,530 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:05:24,530 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:04:40" (3/4) ... [2021-10-28 09:05:24,534 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:05:24,561 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-28 09:05:24,562 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-28 09:05:24,562 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:05:24,563 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:05:24,609 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == zero) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-28 09:05:24,610 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && ~Pluszero~LONGDOUBLE() == zero) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-28 09:05:24,667 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:05:24,667 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:05:24,669 INFO L168 Benchmark]: Toolchain (without parser) took 69345.50 ms. Allocated memory is still 79.7 MB. Free memory was 43.9 MB in the beginning and 46.6 MB in the end (delta: -2.7 MB). Peak memory consumption was 381.4 kB. Max. memory is 16.1 GB. [2021-10-28 09:05:24,670 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 79.7 MB. Free memory was 60.7 MB in the beginning and 60.6 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:05:24,670 INFO L168 Benchmark]: CACSL2BoogieTranslator took 495.42 ms. Allocated memory is still 79.7 MB. Free memory was 43.6 MB in the beginning and 61.3 MB in the end (delta: -17.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:05:24,671 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.88 ms. Allocated memory is still 79.7 MB. Free memory was 61.3 MB in the beginning and 59.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:05:24,671 INFO L168 Benchmark]: Boogie Preprocessor took 94.43 ms. Allocated memory is still 79.7 MB. Free memory was 59.2 MB in the beginning and 57.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:05:24,672 INFO L168 Benchmark]: RCFGBuilder took 24263.49 ms. Allocated memory is still 79.7 MB. Free memory was 57.3 MB in the beginning and 42.7 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:05:24,672 INFO L168 Benchmark]: TraceAbstraction took 44255.84 ms. Allocated memory is still 79.7 MB. Free memory was 42.2 MB in the beginning and 51.3 MB in the end (delta: -9.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:05:24,672 INFO L168 Benchmark]: Witness Printer took 138.77 ms. Allocated memory is still 79.7 MB. Free memory was 51.3 MB in the beginning and 46.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:05:24,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 79.7 MB. Free memory was 60.7 MB in the beginning and 60.6 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 495.42 ms. Allocated memory is still 79.7 MB. Free memory was 43.6 MB in the beginning and 61.3 MB in the end (delta: -17.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.88 ms. Allocated memory is still 79.7 MB. Free memory was 61.3 MB in the beginning and 59.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 94.43 ms. Allocated memory is still 79.7 MB. Free memory was 59.2 MB in the beginning and 57.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 24263.49 ms. Allocated memory is still 79.7 MB. Free memory was 57.3 MB in the beginning and 42.7 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 44255.84 ms. Allocated memory is still 79.7 MB. Free memory was 42.2 MB in the beginning and 51.3 MB in the end (delta: -9.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 138.77 ms. Allocated memory is still 79.7 MB. Free memory was 51.3 MB in the beginning and 46.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 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: 153]: 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, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 23 SDslu, 35 SDs, 0 SdLazy, 23 SolverSat, 2 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 96 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 33.7s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 10 QuantifiedInterpolants, 503 SizeOfPredicates, 19 NumberOfNonLiveVariables, 163 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant [2021-10-28 09:05:24,689 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,689 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == zero) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 139]: Loop Invariant [2021-10-28 09:05:24,699 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,699 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,700 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,700 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,700 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,700 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,700 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,703 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,704 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,704 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,704 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,704 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,705 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,705 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && ~Pluszero~LONGDOUBLE() == zero) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 47]: Loop Invariant [2021-10-28 09:05:24,706 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,706 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,706 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,706 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,709 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,709 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,710 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,710 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,711 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,711 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,711 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,711 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,712 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:05:24,712 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == zero) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-28 09:05:24,937 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-28 09:05:24,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c4cac7-cd03-4e8d-aa5c-644ddf8de9a6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...