./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.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_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/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_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/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_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/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 3c929687e1048988919d423afa09e6828bbc6230 ................................................................................................................................................................................................................................................................................................ 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_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/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_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/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_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/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 3c929687e1048988919d423afa09e6828bbc6230 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:33:28,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:33:28,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:33:28,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:33:28,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:33:28,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:33:28,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:33:28,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:33:28,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:33:28,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:33:28,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:33:28,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:33:28,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:33:28,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:33:28,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:33:28,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:33:28,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:33:28,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:33:28,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:33:28,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:33:28,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:33:28,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:33:28,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:33:28,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:33:28,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:33:28,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:33:28,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:33:28,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:33:28,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:33:28,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:33:28,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:33:28,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:33:28,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:33:28,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:33:28,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:33:28,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:33:28,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:33:28,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:33:28,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:33:28,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:33:28,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:33:28,873 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:33:28,897 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:33:28,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:33:28,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:33:28,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:33:28,899 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:33:28,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:33:28,899 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:33:28,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:33:28,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:33:28,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:33:28,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:33:28,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:33:28,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:33:28,901 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:33:28,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:33:28,901 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:33:28,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:33:28,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:33:28,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:33:28,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:33:28,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:33:28,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:33:28,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:33:28,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:33:28,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:33:28,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:33:28,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:33:28,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:33:28,904 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_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c929687e1048988919d423afa09e6828bbc6230 [2021-10-11 00:33:29,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:33:29,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:33:29,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:33:29,227 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:33:29,227 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:33:29,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2021-10-11 00:33:29,308 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC/data/63223e91a/981972468aab4499af57bd3c5d042c65/FLAGe04b30b58 [2021-10-11 00:33:29,737 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:33:29,737 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2021-10-11 00:33:29,752 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC/data/63223e91a/981972468aab4499af57bd3c5d042c65/FLAGe04b30b58 [2021-10-11 00:33:30,126 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC/data/63223e91a/981972468aab4499af57bd3c5d042c65 [2021-10-11 00:33:30,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:33:30,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:33:30,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:33:30,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:33:30,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:33:30,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:33:30" (1/1) ... [2021-10-11 00:33:30,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c7e3b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:30, skipping insertion in model container [2021-10-11 00:33:30,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:33:30" (1/1) ... [2021-10-11 00:33:30,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:33:30,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:33:30,432 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_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c[2069,2082] [2021-10-11 00:33:30,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:33:30,457 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:33:30,501 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_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c[2069,2082] [2021-10-11 00:33:30,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:33:30,520 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:33:30,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:30 WrapperNode [2021-10-11 00:33:30,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:33:30,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:33:30,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:33:30,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:33:30,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:30" (1/1) ... [2021-10-11 00:33:30,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:30" (1/1) ... [2021-10-11 00:33:30,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:33:30,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:33:30,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:33:30,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:33:30,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:30" (1/1) ... [2021-10-11 00:33:30,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:30" (1/1) ... [2021-10-11 00:33:30,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:30" (1/1) ... [2021-10-11 00:33:30,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:30" (1/1) ... [2021-10-11 00:33:30,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:30" (1/1) ... [2021-10-11 00:33:30,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:30" (1/1) ... [2021-10-11 00:33:30,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:30" (1/1) ... [2021-10-11 00:33:30,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:33:30,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:33:30,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:33:30,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:33:30,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:30" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/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 00:33:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:33:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:33:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-11 00:33:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:33:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 00:33:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:33:30,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:33:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:33:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:33:31,329 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:33:31,330 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-11 00:33:31,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:31 BoogieIcfgContainer [2021-10-11 00:33:31,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:33:31,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:33:31,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:33:31,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:33:31,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:33:30" (1/3) ... [2021-10-11 00:33:31,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e96107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:33:31, skipping insertion in model container [2021-10-11 00:33:31,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:30" (2/3) ... [2021-10-11 00:33:31,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e96107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:33:31, skipping insertion in model container [2021-10-11 00:33:31,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:31" (3/3) ... [2021-10-11 00:33:31,344 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2021-10-11 00:33:31,358 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:33:31,362 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:33:31,373 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:33:31,413 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:33:31,413 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:33:31,414 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:33:31,414 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:33:31,414 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:33:31,414 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:33:31,414 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:33:31,414 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:33:31,431 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2021-10-11 00:33:31,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:33:31,436 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:31,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:31,437 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:31,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:31,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2021-10-11 00:33:31,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:31,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548648854] [2021-10-11 00:33:31,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:31,591 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 00:33:31,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548648854] [2021-10-11 00:33:31,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:31,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:33:31,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230873479] [2021-10-11 00:33:31,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:33:31,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:31,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:33:31,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:33:31,614 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2021-10-11 00:33:31,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:31,632 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2021-10-11 00:33:31,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:33:31,643 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2021-10-11 00:33:31,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:31,652 INFO L225 Difference]: With dead ends: 72 [2021-10-11 00:33:31,653 INFO L226 Difference]: Without dead ends: 34 [2021-10-11 00:33:31,655 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 00:33:31,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-11 00:33:31,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-11 00:33:31,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-10-11 00:33:31,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2021-10-11 00:33:31,690 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2021-10-11 00:33:31,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:31,690 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2021-10-11 00:33:31,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:33:31,691 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2021-10-11 00:33:31,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 00:33:31,692 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:31,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:31,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:33:31,692 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:31,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:31,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2021-10-11 00:33:31,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:31,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887544642] [2021-10-11 00:33:31,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:33:31,735 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:33:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:33:31,761 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:33:31,784 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:33:31,784 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:33:31,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:33:31,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:33:31 BoogieIcfgContainer [2021-10-11 00:33:31,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:33:31,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:33:31,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:33:31,815 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:33:31,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:31" (3/4) ... [2021-10-11 00:33:31,819 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:33:31,819 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:33:31,821 INFO L168 Benchmark]: Toolchain (without parser) took 1690.89 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 71.7 MB in the beginning and 91.3 MB in the end (delta: -19.6 MB). Peak memory consumption was 1.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:31,822 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 102.8 MB. Free memory was 57.6 MB in the beginning and 57.5 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:33:31,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.54 ms. Allocated memory is still 102.8 MB. Free memory was 71.4 MB in the beginning and 77.6 MB in the end (delta: -6.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:31,824 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.62 ms. Allocated memory is still 102.8 MB. Free memory was 77.6 MB in the beginning and 75.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:31,825 INFO L168 Benchmark]: Boogie Preprocessor took 54.69 ms. Allocated memory is still 102.8 MB. Free memory was 75.8 MB in the beginning and 74.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:33:31,825 INFO L168 Benchmark]: RCFGBuilder took 692.49 ms. Allocated memory is still 102.8 MB. Free memory was 74.4 MB in the beginning and 53.8 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:31,826 INFO L168 Benchmark]: TraceAbstraction took 478.48 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 53.4 MB in the beginning and 91.3 MB in the end (delta: -37.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:33:31,827 INFO L168 Benchmark]: Witness Printer took 4.59 ms. Allocated memory is still 123.7 MB. Free memory is still 91.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:33:31,830 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 102.8 MB. Free memory was 57.6 MB in the beginning and 57.5 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 391.54 ms. Allocated memory is still 102.8 MB. Free memory was 71.4 MB in the beginning and 77.6 MB in the end (delta: -6.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.62 ms. Allocated memory is still 102.8 MB. Free memory was 77.6 MB in the beginning and 75.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.69 ms. Allocated memory is still 102.8 MB. Free memory was 75.8 MB in the beginning and 74.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 692.49 ms. Allocated memory is still 102.8 MB. Free memory was 74.4 MB in the beginning and 53.8 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 478.48 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 53.4 MB in the beginning and 91.3 MB in the end (delta: -37.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.59 ms. Allocated memory is still 123.7 MB. Free memory is still 91.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 108]: 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 107, overapproximation of bitwiseAnd at line 26, overapproximation of someBinaryArithmeticFLOAToperation at line 29. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L103] float x = 0.0f; [L17] float z; [L18] __uint32_t r, hx; [L19] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L22] ieee_float_shape_type gf_u; [L23] gf_u.value = (x) [L24] EXPR gf_u.word [L24] (ix) = gf_u.word [L26] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L28] COND TRUE !((hx) < 0x7f800000L) [L29] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L104] float res = __ieee754_sqrtf(x); [L107] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L107] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L108] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 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=37occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 00:33:34,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:33:34,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:33:34,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-11 00:33:34,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:33:34,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:33:34,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:33:34,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:33:34,470 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:33:34,471 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:33:34,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:33:34,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:33:34,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:33:34,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:33:34,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:33:34,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:33:34,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-11 00:33:34,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:33:34,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:33:34,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:33:34,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:33:34,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:33:34,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:33:34,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:33:34,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:33:34,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:33:34,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:33:34,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:33:34,504 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-11 00:33:34,539 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:33:34,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:33:34,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:33:34,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:33:34,542 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:33:34,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:33:34,543 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:33:34,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:33:34,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:33:34,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:33:34,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:33:34,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:33:34,545 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 00:33:34,545 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 00:33:34,545 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:33:34,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:33:34,546 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:33:34,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:33:34,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:33:34,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:33:34,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:33:34,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:33:34,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:33:34,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:33:34,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:33:34,547 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-11 00:33:34,548 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 00:33:34,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:33:34,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:33:34,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 00:33:34,548 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_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c929687e1048988919d423afa09e6828bbc6230 [2021-10-11 00:33:34,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:33:34,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:33:34,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:33:34,999 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:33:35,004 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:33:35,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2021-10-11 00:33:35,098 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC/data/d8ed991a3/4739c6d431274ab09c282abaaf3f3cd9/FLAGcfe3375ee [2021-10-11 00:33:35,736 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:33:35,740 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2021-10-11 00:33:35,749 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC/data/d8ed991a3/4739c6d431274ab09c282abaaf3f3cd9/FLAGcfe3375ee [2021-10-11 00:33:36,075 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC/data/d8ed991a3/4739c6d431274ab09c282abaaf3f3cd9 [2021-10-11 00:33:36,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:33:36,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:33:36,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:33:36,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:33:36,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:33:36,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:33:36" (1/1) ... [2021-10-11 00:33:36,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6c4756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:36, skipping insertion in model container [2021-10-11 00:33:36,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:33:36" (1/1) ... [2021-10-11 00:33:36,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:33:36,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:33:36,283 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_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c[2069,2082] [2021-10-11 00:33:36,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:33:36,300 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:33:36,375 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_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c[2069,2082] [2021-10-11 00:33:36,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:33:36,394 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:33:36,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:36 WrapperNode [2021-10-11 00:33:36,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:33:36,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:33:36,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:33:36,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:33:36,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:36" (1/1) ... [2021-10-11 00:33:36,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:36" (1/1) ... [2021-10-11 00:33:36,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:33:36,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:33:36,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:33:36,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:33:36,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:36" (1/1) ... [2021-10-11 00:33:36,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:36" (1/1) ... [2021-10-11 00:33:36,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:36" (1/1) ... [2021-10-11 00:33:36,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:36" (1/1) ... [2021-10-11 00:33:36,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:36" (1/1) ... [2021-10-11 00:33:36,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:36" (1/1) ... [2021-10-11 00:33:36,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:36" (1/1) ... [2021-10-11 00:33:36,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:33:36,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:33:36,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:33:36,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:33:36,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:36" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/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 00:33:36,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 00:33:36,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:33:36,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-11 00:33:36,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 00:33:36,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:33:36,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:33:36,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-11 00:33:36,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 00:33:36,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:33:38,954 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:33:38,954 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-11 00:33:38,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:38 BoogieIcfgContainer [2021-10-11 00:33:38,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:33:38,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:33:38,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:33:38,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:33:38,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:33:36" (1/3) ... [2021-10-11 00:33:38,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d998eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:33:38, skipping insertion in model container [2021-10-11 00:33:38,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:36" (2/3) ... [2021-10-11 00:33:38,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d998eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:33:38, skipping insertion in model container [2021-10-11 00:33:38,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:38" (3/3) ... [2021-10-11 00:33:38,965 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2021-10-11 00:33:38,980 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:33:38,984 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:33:38,995 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:33:39,021 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:33:39,021 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:33:39,021 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:33:39,022 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:33:39,022 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:33:39,022 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:33:39,022 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:33:39,023 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:33:39,036 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2021-10-11 00:33:39,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:33:39,041 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:39,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:39,043 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:39,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:39,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2021-10-11 00:33:39,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:33:39,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1431841709] [2021-10-11 00:33:39,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/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 00:33:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:39,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 00:33:39,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:33:39,388 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 00:33:39,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:33:39,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1431841709] [2021-10-11 00:33:39,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:39,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:33:39,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823641808] [2021-10-11 00:33:39,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:33:39,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:33:39,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:33:39,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:33:39,416 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2021-10-11 00:33:39,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:39,442 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2021-10-11 00:33:39,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:33:39,443 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2021-10-11 00:33:39,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:39,454 INFO L225 Difference]: With dead ends: 72 [2021-10-11 00:33:39,454 INFO L226 Difference]: Without dead ends: 34 [2021-10-11 00:33:39,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 00:33:39,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-11 00:33:39,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-11 00:33:39,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-10-11 00:33:39,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2021-10-11 00:33:39,497 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2021-10-11 00:33:39,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:39,498 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2021-10-11 00:33:39,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:33:39,498 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2021-10-11 00:33:39,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 00:33:39,499 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:39,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:39,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 00:33:39,730 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:39,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:39,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2021-10-11 00:33:39,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:33:39,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298387303] [2021-10-11 00:33:39,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/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 00:33:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:39,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 00:33:40,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:33:40,140 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 00:33:40,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:33:40,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298387303] [2021-10-11 00:33:40,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:40,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:33:40,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900717004] [2021-10-11 00:33:40,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:33:40,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:33:40,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:33:40,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:33:40,145 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 5 states. [2021-10-11 00:33:40,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:40,232 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2021-10-11 00:33:40,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:33:40,233 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-10-11 00:33:40,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:40,234 INFO L225 Difference]: With dead ends: 43 [2021-10-11 00:33:40,234 INFO L226 Difference]: Without dead ends: 16 [2021-10-11 00:33:40,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:33:40,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-11 00:33:40,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-11 00:33:40,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 00:33:40,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-11 00:33:40,240 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2021-10-11 00:33:40,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:40,241 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-11 00:33:40,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:33:40,241 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-11 00:33:40,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 00:33:40,241 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:40,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:40,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 00:33:40,464 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:40,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:40,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1245587968, now seen corresponding path program 1 times [2021-10-11 00:33:40,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:33:40,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217478276] [2021-10-11 00:33:40,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/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 00:33:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:40,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 00:33:40,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:33:40,714 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 00:33:40,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:33:40,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217478276] [2021-10-11 00:33:40,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:40,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:33:40,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124770723] [2021-10-11 00:33:40,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:33:40,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:33:40,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:33:40,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:33:40,722 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 5 states. [2021-10-11 00:33:40,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:40,804 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-10-11 00:33:40,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:33:40,805 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2021-10-11 00:33:40,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:40,806 INFO L225 Difference]: With dead ends: 19 [2021-10-11 00:33:40,806 INFO L226 Difference]: Without dead ends: 16 [2021-10-11 00:33:40,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:33:40,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-11 00:33:40,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-11 00:33:40,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 00:33:40,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-10-11 00:33:40,811 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2021-10-11 00:33:40,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:40,812 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-10-11 00:33:40,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:33:40,812 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-10-11 00:33:40,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 00:33:40,813 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:40,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:41,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 00:33:41,035 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:41,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:41,035 INFO L82 PathProgramCache]: Analyzing trace with hash 336653141, now seen corresponding path program 1 times [2021-10-11 00:33:41,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:33:41,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219951198] [2021-10-11 00:33:41,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/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 00:33:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:41,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-11 00:33:41,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:33:41,261 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:33:41,350 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 00:33:41,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:33:41,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219951198] [2021-10-11 00:33:41,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:41,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-11 00:33:41,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630195350] [2021-10-11 00:33:41,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 00:33:41,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:33:41,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 00:33:41,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:33:41,353 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 9 states. [2021-10-11 00:33:41,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:41,653 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-10-11 00:33:41,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:33:41,655 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2021-10-11 00:33:41,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:41,656 INFO L225 Difference]: With dead ends: 16 [2021-10-11 00:33:41,656 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:33:41,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-10-11 00:33:41,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:33:41,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:33:41,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:33:41,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:33:41,657 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-11 00:33:41,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:41,657 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:33:41,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 00:33:41,657 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:33:41,658 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:33:41,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 00:33:41,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:33:42,079 INFO L258 CegarLoopResult]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2021-10-11 00:33:42,080 INFO L262 CegarLoopResult]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2021-10-11 00:33:42,080 INFO L262 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-10-11 00:33:42,080 INFO L262 CegarLoopResult]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2021-10-11 00:33:42,080 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:33:42,080 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:33:42,080 INFO L262 CegarLoopResult]: For program point L28(lines 28 29) no Hoare annotation was computed. [2021-10-11 00:33:42,080 INFO L262 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2021-10-11 00:33:42,080 INFO L258 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24)))) (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) |ULTIMATE.start_main_#t~short13| (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24))) [2021-10-11 00:33:42,081 INFO L262 CegarLoopResult]: For program point L86-3(lines 86 90) no Hoare annotation was computed. [2021-10-11 00:33:42,081 INFO L262 CegarLoopResult]: For program point L37(lines 37 41) no Hoare annotation was computed. [2021-10-11 00:33:42,081 INFO L262 CegarLoopResult]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2021-10-11 00:33:42,081 INFO L262 CegarLoopResult]: For program point L54(lines 54 58) no Hoare annotation was computed. [2021-10-11 00:33:42,081 INFO L262 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-10-11 00:33:42,081 INFO L262 CegarLoopResult]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2021-10-11 00:33:42,081 INFO L258 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) [2021-10-11 00:33:42,081 INFO L262 CegarLoopResult]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2021-10-11 00:33:42,081 INFO L265 CegarLoopResult]: At program point L112(lines 95 113) the Hoare annotation is: true [2021-10-11 00:33:42,081 INFO L262 CegarLoopResult]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2021-10-11 00:33:42,082 INFO L258 CegarLoopResult]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2021-10-11 00:33:42,082 INFO L262 CegarLoopResult]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2021-10-11 00:33:42,082 INFO L262 CegarLoopResult]: For program point L63(lines 63 72) no Hoare annotation was computed. [2021-10-11 00:33:42,082 INFO L258 CegarLoopResult]: At program point L80(lines 16 81) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24)))) (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24))) [2021-10-11 00:33:42,082 INFO L262 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-10-11 00:33:42,082 INFO L262 CegarLoopResult]: For program point L65(lines 65 71) no Hoare annotation was computed. [2021-10-11 00:33:42,082 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:33:42,082 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 108) no Hoare annotation was computed. [2021-10-11 00:33:42,083 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-11 00:33:42,083 INFO L262 CegarLoopResult]: For program point L107-2(lines 107 110) no Hoare annotation was computed. [2021-10-11 00:33:42,083 INFO L262 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2021-10-11 00:33:42,083 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:33:42,083 INFO L262 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2021-10-11 00:33:42,083 INFO L262 CegarLoopResult]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2021-10-11 00:33:42,083 INFO L258 CegarLoopResult]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2021-10-11 00:33:42,083 INFO L262 CegarLoopResult]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2021-10-11 00:33:42,083 INFO L262 CegarLoopResult]: For program point L67(lines 67 70) no Hoare annotation was computed. [2021-10-11 00:33:42,084 INFO L258 CegarLoopResult]: At program point L92(lines 83 93) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24)))) (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) |ULTIMATE.start_main_#t~short13| (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24))) [2021-10-11 00:33:42,094 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,095 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,096 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,096 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,104 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,104 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,105 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,105 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,106 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,106 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,107 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,107 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,110 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,110 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,111 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,111 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,113 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,113 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,114 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,114 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,115 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,118 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,118 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:33:42 BoogieIcfgContainer [2021-10-11 00:33:42,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:33:42,131 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:33:42,131 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:33:42,131 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:33:42,132 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:38" (3/4) ... [2021-10-11 00:33:42,135 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:33:42,148 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-10-11 00:33:42,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 00:33:42,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:33:42,150 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:33:42,175 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2021-10-11 00:33:42,176 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2021-10-11 00:33:42,177 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == 0bv32) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2021-10-11 00:33:42,219 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d8ad1-c04b-4f4b-b303-5cd95ac04bde/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:33:42,220 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:33:42,221 INFO L168 Benchmark]: Toolchain (without parser) took 6139.71 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 44.3 MB in the beginning and 39.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:42,222 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 65.0 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:33:42,222 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.16 ms. Allocated memory is still 65.0 MB. Free memory was 44.2 MB in the beginning and 46.4 MB in the end (delta: -2.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:42,223 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.75 ms. Allocated memory is still 65.0 MB. Free memory was 46.2 MB in the beginning and 44.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:42,223 INFO L168 Benchmark]: Boogie Preprocessor took 60.00 ms. Allocated memory is still 65.0 MB. Free memory was 44.6 MB in the beginning and 42.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:33:42,224 INFO L168 Benchmark]: RCFGBuilder took 2441.45 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 42.7 MB in the beginning and 61.4 MB in the end (delta: -18.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:42,224 INFO L168 Benchmark]: TraceAbstraction took 3172.07 ms. Allocated memory is still 86.0 MB. Free memory was 61.0 MB in the beginning and 43.6 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:42,224 INFO L168 Benchmark]: Witness Printer took 89.05 ms. Allocated memory is still 86.0 MB. Free memory was 42.9 MB in the beginning and 39.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:42,226 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 65.0 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 313.16 ms. Allocated memory is still 65.0 MB. Free memory was 44.2 MB in the beginning and 46.4 MB in the end (delta: -2.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.75 ms. Allocated memory is still 65.0 MB. Free memory was 46.2 MB in the beginning and 44.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.00 ms. Allocated memory is still 65.0 MB. Free memory was 44.6 MB in the beginning and 42.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2441.45 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 42.7 MB in the beginning and 61.4 MB in the end (delta: -18.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3172.07 ms. Allocated memory is still 86.0 MB. Free memory was 61.0 MB in the beginning and 43.6 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. * Witness Printer took 89.05 ms. Allocated memory is still 86.0 MB. Free memory was 42.9 MB in the beginning and 39.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 108]: 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: 16]: Loop Invariant [2021-10-11 00:33:42,236 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,236 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,237 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,237 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,237 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,238 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,238 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,238 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 83]: Loop Invariant [2021-10-11 00:33:42,239 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,239 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,239 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,239 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,247 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,248 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,248 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,249 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((((((((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == 0bv32) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant [2021-10-11 00:33:42,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-11 00:33:42,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((((((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 81 SDslu, 43 SDs, 0 SdLazy, 45 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 129 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 1 QuantifiedInterpolants, 1334 SizeOfPredicates, 22 NumberOfNonLiveVariables, 184 ConjunctsInSsa, 30 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...