./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC --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 712005727f62c46a009e5aa995b5d1c386dc6cd1 .................................................................................................................................................................................................................................................................................................................... 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_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC --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 712005727f62c46a009e5aa995b5d1c386dc6cd1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:29:46,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:29:46,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:29:46,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:29:46,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:29:46,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:29:46,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:29:46,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:29:47,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:29:47,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:29:47,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:29:47,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:29:47,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:29:47,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:29:47,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:29:47,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:29:47,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:29:47,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:29:47,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:29:47,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:29:47,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:29:47,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:29:47,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:29:47,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:29:47,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:29:47,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:29:47,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:29:47,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:29:47,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:29:47,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:29:47,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:29:47,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:29:47,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:29:47,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:29:47,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:29:47,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:29:47,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:29:47,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:29:47,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:29:47,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:29:47,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:29:47,050 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:29:47,080 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:29:47,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:29:47,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:29:47,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:29:47,083 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:29:47,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:29:47,084 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:29:47,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:29:47,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:29:47,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:29:47,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:29:47,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:29:47,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:29:47,087 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:29:47,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:29:47,088 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:29:47,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:29:47,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:29:47,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:29:47,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:29:47,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:29:47,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:29:47,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:29:47,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:29:47,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:29:47,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:29:47,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:29:47,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:29:47,094 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_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 712005727f62c46a009e5aa995b5d1c386dc6cd1 [2021-10-11 00:29:47,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:29:47,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:29:47,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:29:47,392 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:29:47,393 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:29:47,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2021-10-11 00:29:47,471 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/data/30c7668fe/a8f40633dcfc4d6c9273a17a39191396/FLAG12af084b5 [2021-10-11 00:29:48,037 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:29:48,042 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2021-10-11 00:29:48,057 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/data/30c7668fe/a8f40633dcfc4d6c9273a17a39191396/FLAG12af084b5 [2021-10-11 00:29:48,388 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/data/30c7668fe/a8f40633dcfc4d6c9273a17a39191396 [2021-10-11 00:29:48,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:29:48,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:29:48,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:29:48,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:29:48,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:29:48,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:29:48" (1/1) ... [2021-10-11 00:29:48,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2359a323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:48, skipping insertion in model container [2021-10-11 00:29:48,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:29:48" (1/1) ... [2021-10-11 00:29:48,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:29:48,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:29:48,666 WARN L226 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_cc178277-8908-4b9a-977a-776537400b79/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c[3181,3194] [2021-10-11 00:29:48,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:29:48,681 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:29:48,724 WARN L226 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_cc178277-8908-4b9a-977a-776537400b79/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c[3181,3194] [2021-10-11 00:29:48,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:29:48,754 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:29:48,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:48 WrapperNode [2021-10-11 00:29:48,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:29:48,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:29:48,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:29:48,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:29:48,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:48" (1/1) ... [2021-10-11 00:29:48,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:48" (1/1) ... [2021-10-11 00:29:48,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:29:48,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:29:48,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:29:48,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:29:48,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:48" (1/1) ... [2021-10-11 00:29:48,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:48" (1/1) ... [2021-10-11 00:29:48,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:48" (1/1) ... [2021-10-11 00:29:48,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:48" (1/1) ... [2021-10-11 00:29:48,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:48" (1/1) ... [2021-10-11 00:29:48,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:48" (1/1) ... [2021-10-11 00:29:48,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:48" (1/1) ... [2021-10-11 00:29:48,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:29:48,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:29:48,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:29:48,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:29:48,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:48" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:29:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:29:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:29:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:29:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-11 00:29:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 00:29:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:29:48,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:29:48,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:29:48,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-11 00:29:48,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:29:49,374 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:29:49,374 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-11 00:29:49,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:29:49 BoogieIcfgContainer [2021-10-11 00:29:49,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:29:49,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:29:49,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:29:49,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:29:49,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:29:48" (1/3) ... [2021-10-11 00:29:49,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0d22bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:29:49, skipping insertion in model container [2021-10-11 00:29:49,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:48" (2/3) ... [2021-10-11 00:29:49,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0d22bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:29:49, skipping insertion in model container [2021-10-11 00:29:49,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:29:49" (3/3) ... [2021-10-11 00:29:49,387 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2021-10-11 00:29:49,420 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:29:49,424 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:29:49,438 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:29:49,472 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:29:49,472 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:29:49,472 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:29:49,473 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:29:49,486 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:29:49,486 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:29:49,486 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:29:49,487 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:29:49,504 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2021-10-11 00:29:49,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 00:29:49,510 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:29:49,511 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:29:49,511 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:29:49,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:29:49,518 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2021-10-11 00:29:49,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:29:49,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019550174] [2021-10-11 00:29:49,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:29:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:29:49,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:29:49,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019550174] [2021-10-11 00:29:49,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:29:49,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:29:49,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275426499] [2021-10-11 00:29:49,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:29:49,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:29:49,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:29:49,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:29:49,780 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2021-10-11 00:29:49,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:29:49,809 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2021-10-11 00:29:49,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:29:49,811 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-10-11 00:29:49,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:29:49,837 INFO L225 Difference]: With dead ends: 70 [2021-10-11 00:29:49,838 INFO L226 Difference]: Without dead ends: 33 [2021-10-11 00:29:49,849 INFO L677 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 [2021-10-11 00:29:49,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-11 00:29:49,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-11 00:29:49,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 00:29:49,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2021-10-11 00:29:49,888 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2021-10-11 00:29:49,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:29:49,888 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-10-11 00:29:49,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:29:49,889 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2021-10-11 00:29:49,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:29:49,890 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:29:49,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:29:49,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:29:49,891 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:29:49,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:29:49,892 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2021-10-11 00:29:49,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:29:49,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52230882] [2021-10-11 00:29:49,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:29:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:29:50,008 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:29:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:29:50,088 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:29:50,141 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:29:50,141 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:29:50,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:29:50,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:29:50 BoogieIcfgContainer [2021-10-11 00:29:50,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:29:50,212 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:29:50,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:29:50,212 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:29:50,213 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:29:49" (3/4) ... [2021-10-11 00:29:50,222 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:29:50,222 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:29:50,227 INFO L168 Benchmark]: Toolchain (without parser) took 1831.98 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 69.4 MB in the beginning and 80.0 MB in the end (delta: -10.6 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:50,228 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 100.7 MB. Free memory is still 54.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:29:50,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.36 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 69.1 MB in the beginning and 94.6 MB in the end (delta: -25.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:50,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.25 ms. Allocated memory is still 121.6 MB. Free memory was 94.1 MB in the beginning and 92.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:50,232 INFO L168 Benchmark]: Boogie Preprocessor took 41.48 ms. Allocated memory is still 121.6 MB. Free memory was 92.5 MB in the beginning and 90.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:50,234 INFO L168 Benchmark]: RCFGBuilder took 509.06 ms. Allocated memory is still 121.6 MB. Free memory was 90.8 MB in the beginning and 67.7 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:50,235 INFO L168 Benchmark]: TraceAbstraction took 832.42 ms. Allocated memory is still 121.6 MB. Free memory was 67.3 MB in the beginning and 80.6 MB in the end (delta: -13.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:29:50,237 INFO L168 Benchmark]: Witness Printer took 10.70 ms. Allocated memory is still 121.6 MB. Free memory was 80.6 MB in the beginning and 80.0 MB in the end (delta: 663.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:29:50,250 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 100.7 MB. Free memory is still 54.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 373.36 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 69.1 MB in the beginning and 94.6 MB in the end (delta: -25.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.25 ms. Allocated memory is still 121.6 MB. Free memory was 94.1 MB in the beginning and 92.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.48 ms. Allocated memory is still 121.6 MB. Free memory was 92.5 MB in the beginning and 90.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 509.06 ms. Allocated memory is still 121.6 MB. Free memory was 90.8 MB in the beginning and 67.7 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 832.42 ms. Allocated memory is still 121.6 MB. Free memory was 67.3 MB in the beginning and 80.6 MB in the end (delta: -13.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 10.70 ms. Allocated memory is still 121.6 MB. Free memory was 80.6 MB in the beginning and 80.0 MB in the end (delta: 663.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 124]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 123, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of bitwiseAnd at line 48, overapproximation of someUnaryFLOAToperation at line 119, overapproximation of someBinaryArithmeticFLOAToperation at line 52. Possible FailurePath: [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L119] float x = -0.0f; [L39] float y, hi, lo, c, t; [L40] __int32_t k = 0, xsb, sx; [L41] __uint32_t hx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L44] ieee_float_shape_type gf_u; [L45] gf_u.value = (x) [L46] EXPR gf_u.word [L46] (sx) = gf_u.word [L48] xsb = (sx >> 31) & 1 [L49] hx = sx & 0x7fffffff VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L51] COND TRUE ((hx) > 0x7f800000L) [L52] return x + x; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L120] float res = __ieee754_expf(x); [L123] COND TRUE res != 1.0f VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L124] reach_error() VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 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=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:29:53,229 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-10-11 00:29:53,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:29:53,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:29:53,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:29:53,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:29:53,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:29:53,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:29:53,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:29:53,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:29:53,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:29:53,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:29:53,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:29:53,346 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-11 00:29:53,394 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:29:53,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:29:53,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:29:53,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:29:53,398 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:29:53,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:29:53,414 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:29:53,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:29:53,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:29:53,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:29:53,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:29:53,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:29:53,416 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 00:29:53,417 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 00:29:53,417 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:29:53,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:29:53,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:29:53,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:29:53,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:29:53,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:29:53,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:29:53,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:29:53,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:29:53,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:29:53,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:29:53,420 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-11 00:29:53,420 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 00:29:53,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:29:53,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:29:53,421 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 00:29:53,421 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_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 712005727f62c46a009e5aa995b5d1c386dc6cd1 [2021-10-11 00:29:53,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:29:53,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:29:53,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:29:53,940 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:29:53,942 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:29:53,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2021-10-11 00:29:54,034 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/data/e01779e6f/291fc0a9ba80483c8d7e69799060ea4e/FLAG6e0f521ce [2021-10-11 00:29:54,735 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:29:54,736 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2021-10-11 00:29:54,745 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/data/e01779e6f/291fc0a9ba80483c8d7e69799060ea4e/FLAG6e0f521ce [2021-10-11 00:29:55,083 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/data/e01779e6f/291fc0a9ba80483c8d7e69799060ea4e [2021-10-11 00:29:55,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:29:55,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:29:55,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:29:55,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:29:55,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:29:55,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:29:55" (1/1) ... [2021-10-11 00:29:55,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1647bf6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:55, skipping insertion in model container [2021-10-11 00:29:55,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:29:55" (1/1) ... [2021-10-11 00:29:55,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:29:55,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:29:55,358 WARN L226 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_cc178277-8908-4b9a-977a-776537400b79/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c[3181,3194] [2021-10-11 00:29:55,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:29:55,424 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:29:55,477 WARN L226 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_cc178277-8908-4b9a-977a-776537400b79/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c[3181,3194] [2021-10-11 00:29:55,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:29:55,501 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:29:55,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:55 WrapperNode [2021-10-11 00:29:55,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:29:55,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:29:55,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:29:55,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:29:55,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:55" (1/1) ... [2021-10-11 00:29:55,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:55" (1/1) ... [2021-10-11 00:29:55,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:29:55,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:29:55,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:29:55,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:29:55,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:55" (1/1) ... [2021-10-11 00:29:55,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:55" (1/1) ... [2021-10-11 00:29:55,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:55" (1/1) ... [2021-10-11 00:29:55,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:55" (1/1) ... [2021-10-11 00:29:55,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:55" (1/1) ... [2021-10-11 00:29:55,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:55" (1/1) ... [2021-10-11 00:29:55,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:55" (1/1) ... [2021-10-11 00:29:55,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:29:55,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:29:55,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:29:55,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:29:55,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:55" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:29:55,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-11 00:29:55,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 00:29:55,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:29:55,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-11 00:29:55,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 00:29:55,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:29:55,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:29:55,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-11 00:29:55,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 00:29:55,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:30:06,669 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:30:06,670 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-11 00:30:06,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:06 BoogieIcfgContainer [2021-10-11 00:30:06,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:30:06,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:30:06,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:30:06,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:30:06,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:29:55" (1/3) ... [2021-10-11 00:30:06,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a98d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:30:06, skipping insertion in model container [2021-10-11 00:30:06,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:55" (2/3) ... [2021-10-11 00:30:06,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a98d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:30:06, skipping insertion in model container [2021-10-11 00:30:06,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:06" (3/3) ... [2021-10-11 00:30:06,683 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2021-10-11 00:30:06,716 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:30:06,720 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:30:06,734 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:30:06,764 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:30:06,764 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:30:06,764 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:30:06,765 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:30:06,765 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:30:06,765 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:30:06,765 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:30:06,765 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:30:06,781 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2021-10-11 00:30:06,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 00:30:06,790 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:06,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:06,791 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:06,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:06,798 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2021-10-11 00:30:06,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:30:06,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [616238617] [2021-10-11 00:30:06,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 00:30:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:07,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 00:30:07,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:30:07,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:07,595 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:30:07,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [616238617] [2021-10-11 00:30:07,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:07,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:30:07,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601797546] [2021-10-11 00:30:07,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:30:07,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:30:07,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:30:07,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:30:07,631 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2021-10-11 00:30:07,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:07,660 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2021-10-11 00:30:07,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:30:07,662 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-10-11 00:30:07,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:07,678 INFO L225 Difference]: With dead ends: 70 [2021-10-11 00:30:07,679 INFO L226 Difference]: Without dead ends: 33 [2021-10-11 00:30:07,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:30:07,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-11 00:30:07,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-11 00:30:07,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 00:30:07,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2021-10-11 00:30:07,731 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2021-10-11 00:30:07,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:07,732 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-10-11 00:30:07,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:30:07,732 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2021-10-11 00:30:07,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:30:07,733 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:07,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:07,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 00:30:07,950 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:07,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:07,951 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2021-10-11 00:30:07,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:30:07,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966260922] [2021-10-11 00:30:07,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 00:30:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:08,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 00:30:08,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:30:08,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:08,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:30:08,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966260922] [2021-10-11 00:30:08,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:08,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:30:08,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261024387] [2021-10-11 00:30:08,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:30:08,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:30:08,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:30:08,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:30:08,750 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 5 states. [2021-10-11 00:30:16,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:16,570 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2021-10-11 00:30:16,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:30:16,651 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2021-10-11 00:30:16,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:16,652 INFO L225 Difference]: With dead ends: 54 [2021-10-11 00:30:16,652 INFO L226 Difference]: Without dead ends: 33 [2021-10-11 00:30:16,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:30:16,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-11 00:30:16,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2021-10-11 00:30:16,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2021-10-11 00:30:16,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2021-10-11 00:30:16,659 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2021-10-11 00:30:16,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:16,659 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2021-10-11 00:30:16,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:30:16,659 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2021-10-11 00:30:16,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 00:30:16,660 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:16,660 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:16,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 00:30:16,861 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:16,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:16,861 INFO L82 PathProgramCache]: Analyzing trace with hash -239562945, now seen corresponding path program 1 times [2021-10-11 00:30:16,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:30:16,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238764533] [2021-10-11 00:30:16,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 00:30:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:17,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 00:30:17,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:30:17,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:17,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:30:17,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238764533] [2021-10-11 00:30:17,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:17,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:30:17,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532973431] [2021-10-11 00:30:17,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:30:17,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:30:17,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:30:17,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:30:17,810 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 6 states. [2021-10-11 00:30:33,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:33,575 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2021-10-11 00:30:33,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:30:33,576 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-10-11 00:30:33,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:33,576 INFO L225 Difference]: With dead ends: 33 [2021-10-11 00:30:33,577 INFO L226 Difference]: Without dead ends: 29 [2021-10-11 00:30:33,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:30:33,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-11 00:30:33,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-11 00:30:33,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2021-10-11 00:30:33,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2021-10-11 00:30:33,583 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 15 [2021-10-11 00:30:33,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:33,583 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2021-10-11 00:30:33,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:30:33,584 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2021-10-11 00:30:33,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:30:33,585 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:33,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:33,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 00:30:33,791 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:33,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:33,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1708303706, now seen corresponding path program 1 times [2021-10-11 00:30:33,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:30:33,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747458756] [2021-10-11 00:30:33,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 00:30:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:35,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 00:30:35,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:30:35,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:35,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:30:35,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747458756] [2021-10-11 00:30:35,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:35,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:30:35,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433362346] [2021-10-11 00:30:35,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:30:35,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:30:35,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:30:35,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:30:35,273 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 4 states. [2021-10-11 00:30:35,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:35,318 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2021-10-11 00:30:35,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:30:35,322 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2021-10-11 00:30:35,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:35,322 INFO L225 Difference]: With dead ends: 29 [2021-10-11 00:30:35,322 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:30:35,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:30:35,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:30:35,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:30:35,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:30:35,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:30:35,323 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-10-11 00:30:35,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:35,323 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:30:35,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:30:35,324 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:30:35,324 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:30:35,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 00:30:35,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:30:35,689 INFO L262 CegarLoopResult]: For program point L60(lines 60 75) no Hoare annotation was computed. [2021-10-11 00:30:35,689 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:30:35,689 INFO L262 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2021-10-11 00:30:35,689 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:30:35,689 INFO L262 CegarLoopResult]: For program point L61-2(lines 61 70) no Hoare annotation was computed. [2021-10-11 00:30:35,689 INFO L262 CegarLoopResult]: For program point L53(lines 53 54) no Hoare annotation was computed. [2021-10-11 00:30:35,689 INFO L262 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2021-10-11 00:30:35,690 INFO L258 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: false [2021-10-11 00:30:35,690 INFO L265 CegarLoopResult]: At program point L128(lines 113 129) the Hoare annotation is: true [2021-10-11 00:30:35,690 INFO L262 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2021-10-11 00:30:35,690 INFO L262 CegarLoopResult]: For program point L54-2(line 54) no Hoare annotation was computed. [2021-10-11 00:30:35,690 INFO L262 CegarLoopResult]: For program point L104(lines 104 108) no Hoare annotation was computed. [2021-10-11 00:30:35,690 INFO L262 CegarLoopResult]: For program point L104-1(lines 97 110) no Hoare annotation was computed. [2021-10-11 00:30:35,690 INFO L262 CegarLoopResult]: For program point L104-2(lines 104 108) no Hoare annotation was computed. [2021-10-11 00:30:35,690 INFO L262 CegarLoopResult]: For program point L55(lines 55 56) no Hoare annotation was computed. [2021-10-11 00:30:35,691 INFO L262 CegarLoopResult]: For program point L80(lines 80 83) no Hoare annotation was computed. [2021-10-11 00:30:35,691 INFO L262 CegarLoopResult]: For program point L72(lines 72 75) no Hoare annotation was computed. [2021-10-11 00:30:35,691 INFO L262 CegarLoopResult]: For program point L72-2(lines 60 75) no Hoare annotation was computed. [2021-10-11 00:30:35,691 INFO L262 CegarLoopResult]: For program point L73(lines 73 74) no Hoare annotation was computed. [2021-10-11 00:30:35,691 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:30:35,691 INFO L262 CegarLoopResult]: For program point L123(lines 123 126) no Hoare annotation was computed. [2021-10-11 00:30:35,691 INFO L262 CegarLoopResult]: For program point L57(lines 57 58) no Hoare annotation was computed. [2021-10-11 00:30:35,691 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2021-10-11 00:30:35,691 INFO L262 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2021-10-11 00:30:35,692 INFO L258 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2021-10-11 00:30:35,692 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:30:35,692 INFO L262 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2021-10-11 00:30:35,692 INFO L262 CegarLoopResult]: For program point L91(lines 91 95) no Hoare annotation was computed. [2021-10-11 00:30:35,692 INFO L262 CegarLoopResult]: For program point L91-1(lines 84 97) no Hoare annotation was computed. [2021-10-11 00:30:35,692 INFO L262 CegarLoopResult]: For program point L91-2(lines 91 95) no Hoare annotation was computed. [2021-10-11 00:30:35,692 INFO L262 CegarLoopResult]: For program point L84(lines 84 110) no Hoare annotation was computed. [2021-10-11 00:30:35,692 INFO L262 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2021-10-11 00:30:35,693 INFO L258 CegarLoopResult]: At program point L109(lines 38 111) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start___ieee754_expf_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 .cse1) (= (fp.add currentRoundingMode .cse1 .cse0) |ULTIMATE.start___ieee754_expf_#res|))) [2021-10-11 00:30:35,693 INFO L262 CegarLoopResult]: For program point L43-1(lines 43 47) no Hoare annotation was computed. [2021-10-11 00:30:35,693 INFO L258 CegarLoopResult]: At program point L43-2(lines 43 47) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_expf_~x (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (= ~huge_exp~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2021-10-11 00:30:35,693 INFO L262 CegarLoopResult]: For program point L43-3(lines 43 47) no Hoare annotation was computed. [2021-10-11 00:30:35,705 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:30:35,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:30:35,709 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:30:35,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:30:35,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:30:35 BoogieIcfgContainer [2021-10-11 00:30:35,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:30:35,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:30:35,713 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:30:35,713 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:30:35,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:06" (3/4) ... [2021-10-11 00:30:35,716 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:30:35,727 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-11 00:30:35,728 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 00:30:35,728 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:30:35,729 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:30:35,752 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) == \result [2021-10-11 00:30:35,790 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc178277-8908-4b9a-977a-776537400b79/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:30:35,790 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:30:35,792 INFO L168 Benchmark]: Toolchain (without parser) took 40702.59 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 36.9 MB in the beginning and 31.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:35,792 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 58.7 MB. Free memory is still 40.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:35,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 404.18 ms. Allocated memory is still 58.7 MB. Free memory was 36.6 MB in the beginning and 39.2 MB in the end (delta: -2.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:35,793 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.37 ms. Allocated memory is still 58.7 MB. Free memory was 39.2 MB in the beginning and 37.2 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:35,793 INFO L168 Benchmark]: Boogie Preprocessor took 60.32 ms. Allocated memory is still 58.7 MB. Free memory was 37.2 MB in the beginning and 35.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:35,794 INFO L168 Benchmark]: RCFGBuilder took 11049.96 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.1 MB in the beginning and 36.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:35,794 INFO L168 Benchmark]: TraceAbstraction took 29037.83 ms. Allocated memory is still 71.3 MB. Free memory was 35.9 MB in the beginning and 38.3 MB in the end (delta: -2.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:35,795 INFO L168 Benchmark]: Witness Printer took 77.52 ms. Allocated memory is still 71.3 MB. Free memory was 38.3 MB in the beginning and 31.9 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:35,797 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 58.7 MB. Free memory is still 40.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 404.18 ms. Allocated memory is still 58.7 MB. Free memory was 36.6 MB in the beginning and 39.2 MB in the end (delta: -2.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.37 ms. Allocated memory is still 58.7 MB. Free memory was 39.2 MB in the beginning and 37.2 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.32 ms. Allocated memory is still 58.7 MB. Free memory was 37.2 MB in the beginning and 35.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 11049.96 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.1 MB in the beginning and 36.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 29037.83 ms. Allocated memory is still 71.3 MB. Free memory was 35.9 MB in the beginning and 38.3 MB in the end (delta: -2.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 77.52 ms. Allocated memory is still 71.3 MB. Free memory was 38.3 MB in the beginning and 31.9 MB in the end (delta: 6.4 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant [2021-10-11 00:30:35,803 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:30:35,804 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) == \result - InvariantResult [Line: 43]: Loop Invariant [2021-10-11 00:30:35,805 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:30:35,805 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && huge_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 23.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 102 SDtfs, 64 SDslu, 105 SDs, 0 SdLazy, 38 SolverSat, 5 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 22.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 51 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 1 QuantifiedInterpolants, 6985 SizeOfPredicates, 19 NumberOfNonLiveVariables, 307 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...