./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0920a.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_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/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_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/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_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/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 77b3a373bd5532f9284ea33fd7b532cf320a99fa ................................................................................................................................................................................................................................................................................................................................................................ 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_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/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_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/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_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/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 77b3a373bd5532f9284ea33fd7b532cf320a99fa ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:34:08,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:34:08,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:34:08,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:34:08,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:34:08,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:34:08,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:34:08,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:34:08,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:34:08,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:34:08,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:34:08,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:34:08,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:34:08,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:34:08,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:34:08,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:34:08,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:34:08,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:34:08,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:34:08,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:34:08,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:34:08,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:34:08,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:34:08,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:34:08,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:34:08,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:34:08,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:34:08,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:34:08,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:34:08,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:34:08,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:34:08,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:34:08,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:34:08,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:34:08,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:34:08,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:34:08,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:34:08,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:34:08,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:34:08,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:34:08,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:34:08,672 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:34:08,711 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:34:08,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:34:08,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:34:08,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:34:08,713 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:34:08,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:34:08,714 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:34:08,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:34:08,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:34:08,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:34:08,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:34:08,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:34:08,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:34:08,716 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:34:08,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:34:08,717 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:34:08,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:34:08,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:34:08,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:34:08,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:34:08,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:34:08,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:34:08,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:34:08,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:34:08,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:34:08,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:34:08,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:34:08,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:34:08,721 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_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77b3a373bd5532f9284ea33fd7b532cf320a99fa [2021-10-11 00:34:09,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:34:09,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:34:09,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:34:09,127 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:34:09,128 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:34:09,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c [2021-10-11 00:34:09,221 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/data/7285e337a/d3fd496fa84e4cb88ec9fba95d444c9d/FLAG58752d7e4 [2021-10-11 00:34:09,766 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:34:09,766 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c [2021-10-11 00:34:09,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/data/7285e337a/d3fd496fa84e4cb88ec9fba95d444c9d/FLAG58752d7e4 [2021-10-11 00:34:10,133 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/data/7285e337a/d3fd496fa84e4cb88ec9fba95d444c9d [2021-10-11 00:34:10,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:34:10,137 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:34:10,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:34:10,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:34:10,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:34:10,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:34:10" (1/1) ... [2021-10-11 00:34:10,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@279fb984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:10, skipping insertion in model container [2021-10-11 00:34:10,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:34:10" (1/1) ... [2021-10-11 00:34:10,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:34:10,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:34:10,524 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_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c[4007,4020] [2021-10-11 00:34:10,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:34:10,538 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:34:10,590 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_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c[4007,4020] [2021-10-11 00:34:10,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:34:10,623 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:34:10,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:10 WrapperNode [2021-10-11 00:34:10,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:34:10,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:34:10,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:34:10,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:34:10,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:10" (1/1) ... [2021-10-11 00:34:10,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:10" (1/1) ... [2021-10-11 00:34:10,697 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:34:10,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:34:10,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:34:10,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:34:10,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:10" (1/1) ... [2021-10-11 00:34:10,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:10" (1/1) ... [2021-10-11 00:34:10,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:10" (1/1) ... [2021-10-11 00:34:10,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:10" (1/1) ... [2021-10-11 00:34:10,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:10" (1/1) ... [2021-10-11 00:34:10,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:10" (1/1) ... [2021-10-11 00:34:10,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:10" (1/1) ... [2021-10-11 00:34:10,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:34:10,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:34:10,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:34:10,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:34:10,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:10" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/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 00:34:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:34:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:34:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-11 00:34:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:34:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 00:34:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:34:10,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:34:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:34:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:34:11,327 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:34:11,328 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-11 00:34:11,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:34:11 BoogieIcfgContainer [2021-10-11 00:34:11,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:34:11,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:34:11,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:34:11,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:34:11,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:34:10" (1/3) ... [2021-10-11 00:34:11,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6927baa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:34:11, skipping insertion in model container [2021-10-11 00:34:11,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:10" (2/3) ... [2021-10-11 00:34:11,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6927baa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:34:11, skipping insertion in model container [2021-10-11 00:34:11,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:34:11" (3/3) ... [2021-10-11 00:34:11,350 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920a.c [2021-10-11 00:34:11,367 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:34:11,370 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:34:11,383 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:34:11,428 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:34:11,429 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:34:11,429 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:34:11,429 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:34:11,429 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:34:11,430 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:34:11,430 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:34:11,430 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:34:11,448 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2021-10-11 00:34:11,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 00:34:11,454 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:11,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:34:11,455 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:11,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:11,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1394505008, now seen corresponding path program 1 times [2021-10-11 00:34:11,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:11,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709434925] [2021-10-11 00:34:11,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:11,653 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 00:34:11,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709434925] [2021-10-11 00:34:11,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:34:11,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:34:11,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907139079] [2021-10-11 00:34:11,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:34:11,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:11,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:34:11,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:34:11,680 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2021-10-11 00:34:11,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:11,704 INFO L93 Difference]: Finished difference Result 69 states and 110 transitions. [2021-10-11 00:34:11,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:34:11,706 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2021-10-11 00:34:11,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:11,717 INFO L225 Difference]: With dead ends: 69 [2021-10-11 00:34:11,718 INFO L226 Difference]: Without dead ends: 32 [2021-10-11 00:34:11,721 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 00:34:11,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-11 00:34:11,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-11 00:34:11,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2021-10-11 00:34:11,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2021-10-11 00:34:11,762 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 12 [2021-10-11 00:34:11,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:11,762 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions. [2021-10-11 00:34:11,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:34:11,763 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2021-10-11 00:34:11,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 00:34:11,764 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:11,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:34:11,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:34:11,764 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:11,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:11,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1007782307, now seen corresponding path program 1 times [2021-10-11 00:34:11,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:11,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747621859] [2021-10-11 00:34:11,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:11,853 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 00:34:11,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747621859] [2021-10-11 00:34:11,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:34:11,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:34:11,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441759159] [2021-10-11 00:34:11,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:34:11,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:11,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:34:11,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:34:11,858 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand 3 states. [2021-10-11 00:34:11,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:11,892 INFO L93 Difference]: Finished difference Result 57 states and 78 transitions. [2021-10-11 00:34:11,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:34:11,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2021-10-11 00:34:11,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:11,899 INFO L225 Difference]: With dead ends: 57 [2021-10-11 00:34:11,899 INFO L226 Difference]: Without dead ends: 32 [2021-10-11 00:34:11,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:34:11,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-11 00:34:11,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-11 00:34:11,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2021-10-11 00:34:11,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2021-10-11 00:34:11,911 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 13 [2021-10-11 00:34:11,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:11,912 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2021-10-11 00:34:11,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:34:11,912 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2021-10-11 00:34:11,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:34:11,913 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:11,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:34:11,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:34:11,914 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:11,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:11,915 INFO L82 PathProgramCache]: Analyzing trace with hash 32951480, now seen corresponding path program 1 times [2021-10-11 00:34:11,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:11,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663080685] [2021-10-11 00:34:11,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:34:12,081 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:34:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:34:12,188 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:34:12,226 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:34:12,226 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:34:12,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:34:12,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:34:12 BoogieIcfgContainer [2021-10-11 00:34:12,292 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:34:12,293 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:34:12,293 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:34:12,293 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:34:12,294 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:34:11" (3/4) ... [2021-10-11 00:34:12,297 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:34:12,298 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:34:12,300 INFO L168 Benchmark]: Toolchain (without parser) took 2161.89 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 65.5 MB in the beginning and 86.3 MB in the end (delta: -20.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:34:12,301 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 94.4 MB. Free memory is still 51.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:34:12,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 484.37 ms. Allocated memory is still 94.4 MB. Free memory was 65.2 MB in the beginning and 66.4 MB in the end (delta: -1.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:12,303 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.44 ms. Allocated memory is still 94.4 MB. Free memory was 66.4 MB in the beginning and 64.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:12,303 INFO L168 Benchmark]: Boogie Preprocessor took 56.60 ms. Allocated memory is still 94.4 MB. Free memory was 64.4 MB in the beginning and 62.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:12,304 INFO L168 Benchmark]: RCFGBuilder took 574.28 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 62.6 MB in the beginning and 87.8 MB in the end (delta: -25.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:12,305 INFO L168 Benchmark]: TraceAbstraction took 960.26 ms. Allocated memory is still 113.2 MB. Free memory was 87.3 MB in the beginning and 87.2 MB in the end (delta: 32.3 kB). Peak memory consumption was 32.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:12,306 INFO L168 Benchmark]: Witness Printer took 5.20 ms. Allocated memory is still 113.2 MB. Free memory is still 86.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:34:12,311 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 94.4 MB. Free memory is still 51.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 484.37 ms. Allocated memory is still 94.4 MB. Free memory was 65.2 MB in the beginning and 66.4 MB in the end (delta: -1.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.44 ms. Allocated memory is still 94.4 MB. Free memory was 66.4 MB in the beginning and 64.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.60 ms. Allocated memory is still 94.4 MB. Free memory was 64.4 MB in the beginning and 62.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 574.28 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 62.6 MB in the beginning and 87.8 MB in the end (delta: -25.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 960.26 ms. Allocated memory is still 113.2 MB. Free memory was 87.3 MB in the beginning and 87.2 MB in the end (delta: 32.3 kB). Peak memory consumption was 32.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.20 ms. Allocated memory is still 113.2 MB. Free memory is still 86.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 156]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 139, overapproximation of bitwiseAnd at line 135, overapproximation of someBinaryArithmeticDOUBLEoperation at line 74. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L148] double x = __VERIFIER_nondet_double(); [L150] EXPR x < 0 && isfinite_double(x) [L129] __int32_t hx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L131] ieee_double_shape_type gh_u; [L132] gh_u.value = (x) [L133] EXPR gh_u.parts.msw [L133] (hx) = gh_u.parts.msw [L135] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L150] EXPR x < 0 && isfinite_double(x) VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L150] COND TRUE (x < 0 && isfinite_double(x)) [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L60] COND FALSE !(hx < 0x00100000) VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L73] COND TRUE hx >= 0x7ff00000 [L74] return x + x; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L152] double res = __ieee754_log(x); [L139] return x != x; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L155] COND TRUE !isnan_double(res) [L156] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 91 SDtfs, 0 SDslu, 38 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 00:34:15,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:34:15,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:34:15,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:34:15,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:34:15,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:34:15,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:34:15,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:34:15,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:34:15,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:34:15,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:34:15,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:34:15,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:34:15,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:34:15,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:34:15,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:34:15,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:34:15,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:34:15,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:34:15,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:34:15,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:34:15,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:34:15,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:34:15,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:34:15,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:34:15,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:34:15,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:34:15,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:34:15,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:34:15,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:34:15,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:34:15,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:34:15,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:34:15,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:34:15,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:34:15,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:34:15,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:34:15,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:34:15,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:34:15,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:34:15,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:34:15,422 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-11 00:34:15,496 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:34:15,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:34:15,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:34:15,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:34:15,498 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:34:15,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:34:15,499 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:34:15,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:34:15,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:34:15,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:34:15,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:34:15,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:34:15,500 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 00:34:15,501 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 00:34:15,501 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:34:15,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:34:15,501 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:34:15,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:34:15,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:34:15,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:34:15,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:34:15,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:34:15,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:34:15,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:34:15,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:34:15,503 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-11 00:34:15,504 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 00:34:15,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:34:15,507 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:34:15,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 00:34:15,508 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_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77b3a373bd5532f9284ea33fd7b532cf320a99fa [2021-10-11 00:34:15,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:34:15,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:34:15,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:34:15,994 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:34:15,995 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:34:15,996 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c [2021-10-11 00:34:16,085 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/data/0daae9d8a/eac98fbaf53549c59e2861bccb923b46/FLAG00b2a6cb3 [2021-10-11 00:34:16,788 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:34:16,789 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c [2021-10-11 00:34:16,798 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/data/0daae9d8a/eac98fbaf53549c59e2861bccb923b46/FLAG00b2a6cb3 [2021-10-11 00:34:17,156 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/data/0daae9d8a/eac98fbaf53549c59e2861bccb923b46 [2021-10-11 00:34:17,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:34:17,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:34:17,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:34:17,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:34:17,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:34:17,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:34:17" (1/1) ... [2021-10-11 00:34:17,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a7f9fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:17, skipping insertion in model container [2021-10-11 00:34:17,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:34:17" (1/1) ... [2021-10-11 00:34:17,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:34:17,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:34:17,486 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_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c[4007,4020] [2021-10-11 00:34:17,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:34:17,501 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:34:17,550 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_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c[4007,4020] [2021-10-11 00:34:17,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:34:17,572 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:34:17,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:17 WrapperNode [2021-10-11 00:34:17,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:34:17,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:34:17,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:34:17,574 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:34:17,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:17" (1/1) ... [2021-10-11 00:34:17,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:17" (1/1) ... [2021-10-11 00:34:17,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:34:17,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:34:17,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:34:17,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:34:17,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:17" (1/1) ... [2021-10-11 00:34:17,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:17" (1/1) ... [2021-10-11 00:34:17,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:17" (1/1) ... [2021-10-11 00:34:17,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:17" (1/1) ... [2021-10-11 00:34:17,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:17" (1/1) ... [2021-10-11 00:34:17,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:17" (1/1) ... [2021-10-11 00:34:17,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:17" (1/1) ... [2021-10-11 00:34:17,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:34:17,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:34:17,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:34:17,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:34:17,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:17" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/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 00:34:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-11 00:34:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-11 00:34:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 00:34:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:34:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 00:34:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:34:17,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:34:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 00:34:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:34:44,691 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:34:44,691 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-11 00:34:44,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:34:44 BoogieIcfgContainer [2021-10-11 00:34:44,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:34:44,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:34:44,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:34:44,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:34:44,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:34:17" (1/3) ... [2021-10-11 00:34:44,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67157b70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:34:44, skipping insertion in model container [2021-10-11 00:34:44,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:17" (2/3) ... [2021-10-11 00:34:44,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67157b70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:34:44, skipping insertion in model container [2021-10-11 00:34:44,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:34:44" (3/3) ... [2021-10-11 00:34:44,704 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920a.c [2021-10-11 00:34:44,720 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:34:44,724 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:34:44,737 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:34:44,763 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:34:44,764 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:34:44,764 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:34:44,764 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:34:44,764 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:34:44,765 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:34:44,765 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:34:44,765 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:34:44,797 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2021-10-11 00:34:44,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 00:34:44,803 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:44,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:34:44,804 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:44,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:44,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1394505008, now seen corresponding path program 1 times [2021-10-11 00:34:44,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:34:44,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289855383] [2021-10-11 00:34:44,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/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 00:34:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:45,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 00:34:45,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:34:45,105 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 00:34:45,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:34:45,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289855383] [2021-10-11 00:34:45,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:34:45,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:34:45,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301446409] [2021-10-11 00:34:45,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:34:45,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:34:45,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:34:45,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:34:45,154 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2021-10-11 00:34:45,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:45,195 INFO L93 Difference]: Finished difference Result 69 states and 110 transitions. [2021-10-11 00:34:45,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:34:45,197 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2021-10-11 00:34:45,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:45,204 INFO L225 Difference]: With dead ends: 69 [2021-10-11 00:34:45,205 INFO L226 Difference]: Without dead ends: 32 [2021-10-11 00:34:45,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 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 00:34:45,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-11 00:34:45,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-11 00:34:45,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2021-10-11 00:34:45,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2021-10-11 00:34:45,252 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 12 [2021-10-11 00:34:45,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:45,253 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions. [2021-10-11 00:34:45,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:34:45,253 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2021-10-11 00:34:45,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 00:34:45,254 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:45,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:34:45,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 00:34:45,475 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:45,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:45,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1007782307, now seen corresponding path program 1 times [2021-10-11 00:34:45,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:34:45,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958699973] [2021-10-11 00:34:45,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/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 00:34:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:45,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:34:45,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:34:45,808 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 00:34:45,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:34:45,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958699973] [2021-10-11 00:34:45,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:34:45,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:34:45,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212238010] [2021-10-11 00:34:45,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:34:45,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:34:45,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:34:45,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:34:45,813 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand 3 states. [2021-10-11 00:34:45,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:45,882 INFO L93 Difference]: Finished difference Result 57 states and 78 transitions. [2021-10-11 00:34:45,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:34:45,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2021-10-11 00:34:45,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:45,884 INFO L225 Difference]: With dead ends: 57 [2021-10-11 00:34:45,885 INFO L226 Difference]: Without dead ends: 32 [2021-10-11 00:34:45,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:34:45,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-11 00:34:45,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-11 00:34:45,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2021-10-11 00:34:45,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2021-10-11 00:34:45,892 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 13 [2021-10-11 00:34:45,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:45,893 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2021-10-11 00:34:45,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:34:45,893 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2021-10-11 00:34:45,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:34:45,894 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:45,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:34:46,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 00:34:46,115 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:46,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:46,116 INFO L82 PathProgramCache]: Analyzing trace with hash 32951480, now seen corresponding path program 1 times [2021-10-11 00:34:46,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:34:46,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909159644] [2021-10-11 00:34:46,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/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 00:34:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:46,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 00:34:46,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:34:46,821 WARN L197 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-10-11 00:34:47,310 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 00:34:47,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:34:47,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909159644] [2021-10-11 00:34:47,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:34:47,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:34:47,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569284471] [2021-10-11 00:34:47,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:34:47,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:34:47,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:34:47,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:34:47,313 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand 6 states. [2021-10-11 00:34:47,878 WARN L197 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 8 [2021-10-11 00:34:48,351 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-10-11 00:34:54,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:54,080 INFO L93 Difference]: Finished difference Result 37 states and 46 transitions. [2021-10-11 00:34:54,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:34:54,109 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-10-11 00:34:54,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:54,109 INFO L225 Difference]: With dead ends: 37 [2021-10-11 00:34:54,109 INFO L226 Difference]: Without dead ends: 19 [2021-10-11 00:34:54,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:34:54,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-11 00:34:54,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-11 00:34:54,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-11 00:34:54,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-10-11 00:34:54,114 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2021-10-11 00:34:54,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:54,114 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-10-11 00:34:54,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:34:54,115 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-10-11 00:34:54,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:34:54,115 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:54,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:34:54,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 00:34:54,321 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:54,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:54,321 INFO L82 PathProgramCache]: Analyzing trace with hash -677236169, now seen corresponding path program 1 times [2021-10-11 00:34:54,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:34:54,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [724123545] [2021-10-11 00:34:54,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/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 00:34:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:55,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 00:34:55,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:34:55,729 WARN L197 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-10-11 00:34:56,059 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2021-10-11 00:34:56,092 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:34:56,120 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:34:56,120 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:34:56,269 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-10-11 00:34:56,270 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:34:56,273 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-10-11 00:34:56,273 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:31, output treesize:20 [2021-10-11 00:34:56,522 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 00:34:56,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:34:56,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [724123545] [2021-10-11 00:34:56,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:34:56,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:34:56,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842388729] [2021-10-11 00:34:56,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:34:56,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:34:56,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:34:56,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:34:56,525 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 6 states. [2021-10-11 00:34:57,050 WARN L197 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 8 [2021-10-11 00:34:57,534 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2021-10-11 00:35:00,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:35:00,213 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2021-10-11 00:35:00,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:35:00,396 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-10-11 00:35:00,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:35:00,396 INFO L225 Difference]: With dead ends: 24 [2021-10-11 00:35:00,397 INFO L226 Difference]: Without dead ends: 19 [2021-10-11 00:35:00,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:35:00,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-11 00:35:00,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-11 00:35:00,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-11 00:35:00,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2021-10-11 00:35:00,401 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 17 [2021-10-11 00:35:00,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:35:00,402 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2021-10-11 00:35:00,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:35:00,402 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2021-10-11 00:35:00,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 00:35:00,403 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:35:00,403 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:35:00,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 00:35:00,604 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:35:00,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:35:00,604 INFO L82 PathProgramCache]: Analyzing trace with hash 471217663, now seen corresponding path program 1 times [2021-10-11 00:35:00,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:35:00,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865389814] [2021-10-11 00:35:00,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 00:35:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:35:01,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 00:35:01,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:35:02,800 WARN L197 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2021-10-11 00:35:03,828 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 00:35:03,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:35:03,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865389814] [2021-10-11 00:35:03,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:35:03,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:35:03,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969719286] [2021-10-11 00:35:03,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:35:03,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:35:03,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:35:03,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:35:03,832 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 6 states. [2021-10-11 00:35:08,267 WARN L197 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2021-10-11 00:35:09,750 WARN L197 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2021-10-11 00:35:09,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:35:09,751 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-10-11 00:35:09,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:35:09,751 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2021-10-11 00:35:09,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:35:09,752 INFO L225 Difference]: With dead ends: 19 [2021-10-11 00:35:09,752 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:35:09,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:35:09,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:35:09,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:35:09,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:35:09,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:35:09,753 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-10-11 00:35:09,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:35:09,753 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:35:09,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:35:09,753 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:35:09,753 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:35:09,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 00:35:09,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:35:10,224 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2021-10-11 00:35:10,898 WARN L197 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2021-10-11 00:35:11,108 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2021-10-11 00:35:11,304 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2021-10-11 00:35:11,494 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2021-10-11 00:35:11,497 INFO L262 CegarLoopResult]: For program point L60(lines 60 72) no Hoare annotation was computed. [2021-10-11 00:35:11,497 INFO L262 CegarLoopResult]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2021-10-11 00:35:11,497 INFO L262 CegarLoopResult]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2021-10-11 00:35:11,497 INFO L258 CegarLoopResult]: At program point L52-2(lines 52 57) the Hoare annotation is: (and (= ~zero~0 (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) currentRoundingMode (_ bv0 32)))) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log_~x ((_ to_fp 11 53) currentRoundingMode (_ bv0 32))))) [2021-10-11 00:35:11,498 INFO L262 CegarLoopResult]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2021-10-11 00:35:11,498 INFO L258 CegarLoopResult]: At program point L135(lines 128 136) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short16| (= ~zero~0 (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) currentRoundingMode (_ bv0 32))))) [2021-10-11 00:35:11,498 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:35:11,498 INFO L262 CegarLoopResult]: For program point L61(lines 61 62) no Hoare annotation was computed. [2021-10-11 00:35:11,498 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:35:11,498 INFO L262 CegarLoopResult]: For program point L86(lines 86 102) no Hoare annotation was computed. [2021-10-11 00:35:11,499 INFO L262 CegarLoopResult]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2021-10-11 00:35:11,499 INFO L258 CegarLoopResult]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2021-10-11 00:35:11,499 INFO L262 CegarLoopResult]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2021-10-11 00:35:11,499 INFO L265 CegarLoopResult]: At program point L161(lines 141 162) the Hoare annotation is: true [2021-10-11 00:35:11,499 INFO L262 CegarLoopResult]: For program point L87(lines 87 94) no Hoare annotation was computed. [2021-10-11 00:35:11,499 INFO L262 CegarLoopResult]: For program point L96(lines 96 101) no Hoare annotation was computed. [2021-10-11 00:35:11,499 INFO L262 CegarLoopResult]: For program point L63(lines 63 64) no Hoare annotation was computed. [2021-10-11 00:35:11,500 INFO L262 CegarLoopResult]: For program point L121(lines 121 124) no Hoare annotation was computed. [2021-10-11 00:35:11,500 INFO L262 CegarLoopResult]: For program point L88(lines 88 93) no Hoare annotation was computed. [2021-10-11 00:35:11,500 INFO L262 CegarLoopResult]: For program point L113(lines 113 125) no Hoare annotation was computed. [2021-10-11 00:35:11,500 INFO L262 CegarLoopResult]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2021-10-11 00:35:11,500 INFO L258 CegarLoopResult]: At program point L130-2(lines 130 134) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short16| (= ~zero~0 (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) currentRoundingMode (_ bv0 32))))) [2021-10-11 00:35:11,500 INFO L262 CegarLoopResult]: For program point L130-3(lines 130 134) no Hoare annotation was computed. [2021-10-11 00:35:11,501 INFO L262 CegarLoopResult]: For program point L155(lines 155 158) no Hoare annotation was computed. [2021-10-11 00:35:11,501 INFO L258 CegarLoopResult]: At program point L139(line 139) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_log_~x (_ FloatingPoint 11 53))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_log_~x ULTIMATE.start___ieee754_log_~x) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2021-10-11 00:35:11,501 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:35:11,501 INFO L262 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2021-10-11 00:35:11,501 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 156) no Hoare annotation was computed. [2021-10-11 00:35:11,501 INFO L262 CegarLoopResult]: For program point L115(lines 115 119) no Hoare annotation was computed. [2021-10-11 00:35:11,501 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:35:11,502 INFO L258 CegarLoopResult]: At program point L124(lines 47 126) the Hoare annotation is: (exists ((ULTIMATE.start___ieee754_log_~x (_ FloatingPoint 11 53))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_log_~x ULTIMATE.start___ieee754_log_~x) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|)) [2021-10-11 00:35:11,502 INFO L262 CegarLoopResult]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2021-10-11 00:35:11,502 INFO L258 CegarLoopResult]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2021-10-11 00:35:11,502 INFO L262 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2021-10-11 00:35:11,502 INFO L262 CegarLoopResult]: For program point L150-2(lines 150 159) no Hoare annotation was computed. [2021-10-11 00:35:11,502 INFO L262 CegarLoopResult]: For program point L150-4(lines 150 159) no Hoare annotation was computed. [2021-10-11 00:35:11,513 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:35:11,518 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,518 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:35:11,519 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,520 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,520 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2021-10-11 00:35:11,520 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2021-10-11 00:35:11,521 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,521 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,521 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2021-10-11 00:35:11,521 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2021-10-11 00:35:11,522 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,522 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,523 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2021-10-11 00:35:11,523 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2021-10-11 00:35:11,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,524 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2021-10-11 00:35:11,524 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2021-10-11 00:35:11,524 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,525 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:35:11,525 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,525 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:35:11,526 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,526 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:35:11,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:35:11,527 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:35:11,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:35:11,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:35:11 BoogieIcfgContainer [2021-10-11 00:35:11,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:35:11,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:35:11,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:35:11,531 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:35:11,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:34:44" (3/4) ... [2021-10-11 00:35:11,535 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:35:11,548 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-11 00:35:11,548 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-11 00:35:11,549 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:35:11,549 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:35:11,573 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-x < 0 && isfinite_double(x)-aux && zero == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) [2021-10-11 00:35:11,574 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-x < 0 && isfinite_double(x)-aux && zero == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) [2021-10-11 00:35:11,574 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((zero == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) [2021-10-11 00:35:11,574 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start___ieee754_log_~x : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log_~x, ULTIMATE.start___ieee754_log_~x), ~Pluszero~LONGDOUBLE()) == \result) [2021-10-11 00:35:11,575 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start___ieee754_log_~x : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log_~x, ULTIMATE.start___ieee754_log_~x), ~Pluszero~LONGDOUBLE()) == \result) && 1bv32 == \result [2021-10-11 00:35:11,606 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5530b4b2-fae8-4fed-b21f-d9247ba4a3cf/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:35:11,606 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:35:11,607 INFO L168 Benchmark]: Toolchain (without parser) took 54442.18 ms. Allocated memory is still 96.5 MB. Free memory was 61.7 MB in the beginning and 54.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:35:11,607 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory was 78.3 MB in the beginning and 78.2 MB in the end (delta: 85.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:35:11,607 INFO L168 Benchmark]: CACSL2BoogieTranslator took 404.88 ms. Allocated memory is still 96.5 MB. Free memory was 61.4 MB in the beginning and 75.9 MB in the end (delta: -14.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:35:11,608 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.49 ms. Allocated memory is still 96.5 MB. Free memory was 75.9 MB in the beginning and 73.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:35:11,608 INFO L168 Benchmark]: Boogie Preprocessor took 49.35 ms. Allocated memory is still 96.5 MB. Free memory was 73.7 MB in the beginning and 71.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:35:11,609 INFO L168 Benchmark]: RCFGBuilder took 27011.12 ms. Allocated memory is still 96.5 MB. Free memory was 71.7 MB in the beginning and 46.2 MB in the end (delta: 25.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:35:11,609 INFO L168 Benchmark]: TraceAbstraction took 26834.69 ms. Allocated memory is still 96.5 MB. Free memory was 45.6 MB in the beginning and 60.1 MB in the end (delta: -14.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:35:11,610 INFO L168 Benchmark]: Witness Printer took 75.41 ms. Allocated memory is still 96.5 MB. Free memory was 60.1 MB in the beginning and 54.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:35:11,612 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory was 78.3 MB in the beginning and 78.2 MB in the end (delta: 85.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 404.88 ms. Allocated memory is still 96.5 MB. Free memory was 61.4 MB in the beginning and 75.9 MB in the end (delta: -14.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.49 ms. Allocated memory is still 96.5 MB. Free memory was 75.9 MB in the beginning and 73.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.35 ms. Allocated memory is still 96.5 MB. Free memory was 73.7 MB in the beginning and 71.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 27011.12 ms. Allocated memory is still 96.5 MB. Free memory was 71.7 MB in the beginning and 46.2 MB in the end (delta: 25.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 26834.69 ms. Allocated memory is still 96.5 MB. Free memory was 45.6 MB in the beginning and 60.1 MB in the end (delta: -14.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 75.41 ms. Allocated memory is still 96.5 MB. Free memory was 60.1 MB in the beginning and 54.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 156]: 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: 130]: Loop Invariant [2021-10-11 00:35:11,621 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:35:11,621 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((aux-x < 0 && isfinite_double(x)-aux && zero == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) - InvariantResult [Line: 139]: Loop Invariant [2021-10-11 00:35:11,622 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,622 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,622 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2021-10-11 00:35:11,622 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2021-10-11 00:35:11,623 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,623 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,623 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2021-10-11 00:35:11,623 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start___ieee754_log_~x : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log_~x, ULTIMATE.start___ieee754_log_~x), ~Pluszero~LONGDOUBLE()) == \result) && 1bv32 == \result - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant [2021-10-11 00:35:11,624 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,624 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,624 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2021-10-11 00:35:11,625 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2021-10-11 00:35:11,625 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,625 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,625 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2021-10-11 00:35:11,625 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start___ieee754_log_~x : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log_~x, ULTIMATE.start___ieee754_log_~x), ~Pluszero~LONGDOUBLE()) == \result) - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant [2021-10-11 00:35:11,626 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,626 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:35:11,627 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,627 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((aux-x < 0 && isfinite_double(x)-aux && zero == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) - InvariantResult [Line: 52]: Loop Invariant [2021-10-11 00:35:11,627 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,627 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:35:11,628 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:35:11,628 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:35:11,628 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:35:11,628 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((zero == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 25.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 16.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 127 SDtfs, 36 SDslu, 137 SDs, 0 SdLazy, 42 SolverSat, 1 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 11.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 14 NumberOfFragments, 74 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 72 ConstructedInterpolants, 22 QuantifiedInterpolants, 6209 SizeOfPredicates, 23 NumberOfNonLiveVariables, 334 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...