./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_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_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/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_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/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_d0769e43-b61b-4977-9099-782dcef00360/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 8aa1a92a1779a20f74a516c833d3b843eed96e54 ....................................................................................................................................................................................................................................................................................................................................................... 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_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/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_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/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_d0769e43-b61b-4977-9099-782dcef00360/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 8aa1a92a1779a20f74a516c833d3b843eed96e54 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:27:15,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:27:15,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:27:15,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:27:15,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:27:15,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:27:15,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:27:15,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:27:15,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:27:15,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:27:15,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:27:15,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:27:15,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:27:15,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:27:15,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:27:15,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:27:15,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:27:15,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:27:15,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:27:15,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:27:15,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:27:15,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:27:15,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:27:15,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:27:15,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:27:15,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:27:15,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:27:15,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:27:15,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:27:15,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:27:15,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:27:15,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:27:15,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:27:15,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:27:15,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:27:15,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:27:15,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:27:15,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:27:15,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:27:15,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:27:15,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:27:15,713 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:27:15,752 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:27:15,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:27:15,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:27:15,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:27:15,759 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:27:15,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:27:15,760 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:27:15,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:27:15,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:27:15,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:27:15,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:27:15,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:27:15,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:27:15,763 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:27:15,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:27:15,763 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:27:15,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:27:15,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:27:15,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:27:15,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:27:15,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:27:15,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:27:15,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:27:15,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:27:15,766 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:27:15,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:27:15,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:27:15,767 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:27:15,768 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_d0769e43-b61b-4977-9099-782dcef00360/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8aa1a92a1779a20f74a516c833d3b843eed96e54 [2021-10-11 00:27:16,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:27:16,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:27:16,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:27:16,173 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:27:16,176 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:27:16,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2021-10-11 00:27:16,261 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC/data/58f5f0532/623c4c5750fa4917ad54e909577a2b39/FLAGfc7d5d4fe [2021-10-11 00:27:16,840 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:27:16,847 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2021-10-11 00:27:16,864 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC/data/58f5f0532/623c4c5750fa4917ad54e909577a2b39/FLAGfc7d5d4fe [2021-10-11 00:27:17,168 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC/data/58f5f0532/623c4c5750fa4917ad54e909577a2b39 [2021-10-11 00:27:17,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:27:17,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:27:17,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:27:17,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:27:17,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:27:17,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:17,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b8fc9e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17, skipping insertion in model container [2021-10-11 00:27:17,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:17,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:27:17,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:27:17,474 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_d0769e43-b61b-4977-9099-782dcef00360/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c[3541,3554] [2021-10-11 00:27:17,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:27:17,502 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:27:17,568 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_d0769e43-b61b-4977-9099-782dcef00360/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c[3541,3554] [2021-10-11 00:27:17,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:27:17,585 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:27:17,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17 WrapperNode [2021-10-11 00:27:17,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:27:17,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:27:17,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:27:17,592 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:27:17,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:17,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:17,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:27:17,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:27:17,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:27:17,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:27:17,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:17,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:17,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:17,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:17,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:17,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:17,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:17,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:27:17,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:27:17,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:27:17,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:27:17,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/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 00:27:17,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:27:17,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:27:17,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-11 00:27:17,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:27:17,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 00:27:17,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:27:17,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:27:17,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:27:17,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:27:18,439 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:27:18,440 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-11 00:27:18,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:18 BoogieIcfgContainer [2021-10-11 00:27:18,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:27:18,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:27:18,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:27:18,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:27:18,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:27:17" (1/3) ... [2021-10-11 00:27:18,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd87c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:27:18, skipping insertion in model container [2021-10-11 00:27:18,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (2/3) ... [2021-10-11 00:27:18,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd87c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:27:18, skipping insertion in model container [2021-10-11 00:27:18,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:18" (3/3) ... [2021-10-11 00:27:18,453 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c [2021-10-11 00:27:18,467 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:27:18,471 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:27:18,482 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:27:18,517 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:27:18,517 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:27:18,518 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:27:18,518 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:27:18,518 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:27:18,518 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:27:18,518 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:27:18,519 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:27:18,538 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2021-10-11 00:27:18,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 00:27:18,543 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:18,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:18,544 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:18,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:18,551 INFO L82 PathProgramCache]: Analyzing trace with hash 627170052, now seen corresponding path program 1 times [2021-10-11 00:27:18,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:18,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716529692] [2021-10-11 00:27:18,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:18,753 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 00:27:18,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716529692] [2021-10-11 00:27:18,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:18,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:27:18,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015418953] [2021-10-11 00:27:18,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:27:18,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:18,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:27:18,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:27:18,779 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2021-10-11 00:27:18,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:18,803 INFO L93 Difference]: Finished difference Result 71 states and 112 transitions. [2021-10-11 00:27:18,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:27:18,804 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2021-10-11 00:27:18,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:18,822 INFO L225 Difference]: With dead ends: 71 [2021-10-11 00:27:18,822 INFO L226 Difference]: Without dead ends: 33 [2021-10-11 00:27:18,825 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 00:27:18,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-11 00:27:18,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-11 00:27:18,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 00:27:18,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2021-10-11 00:27:18,857 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 11 [2021-10-11 00:27:18,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:18,858 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2021-10-11 00:27:18,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:27:18,858 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2021-10-11 00:27:18,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 00:27:18,859 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:18,859 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:18,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:27:18,859 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:18,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:18,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1650641455, now seen corresponding path program 1 times [2021-10-11 00:27:18,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:18,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639176557] [2021-10-11 00:27:18,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:18,941 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 00:27:18,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639176557] [2021-10-11 00:27:18,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:18,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:27:18,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688599996] [2021-10-11 00:27:18,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:27:18,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:18,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:27:18,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:27:18,948 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand 3 states. [2021-10-11 00:27:18,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:18,977 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2021-10-11 00:27:18,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:27:18,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2021-10-11 00:27:18,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:18,981 INFO L225 Difference]: With dead ends: 59 [2021-10-11 00:27:18,981 INFO L226 Difference]: Without dead ends: 33 [2021-10-11 00:27:18,983 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 00:27:18,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-11 00:27:18,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-11 00:27:18,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 00:27:18,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2021-10-11 00:27:18,995 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 12 [2021-10-11 00:27:18,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:18,997 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-10-11 00:27:18,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:27:18,998 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2021-10-11 00:27:18,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 00:27:18,998 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:18,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:18,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:27:18,999 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:19,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:19,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1227406364, now seen corresponding path program 1 times [2021-10-11 00:27:19,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:19,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946677258] [2021-10-11 00:27:19,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:19,075 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:19,150 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:19,183 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:27:19,184 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:27:19,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:27:19,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:27:19 BoogieIcfgContainer [2021-10-11 00:27:19,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:27:19,259 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:27:19,259 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:27:19,259 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:27:19,260 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:18" (3/4) ... [2021-10-11 00:27:19,262 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:27:19,262 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:27:19,264 INFO L168 Benchmark]: Toolchain (without parser) took 2090.66 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 62.8 MB in the beginning and 92.5 MB in the end (delta: -29.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:27:19,265 INFO L168 Benchmark]: CDTParser took 0.67 ms. Allocated memory is still 94.4 MB. Free memory was 50.3 MB in the beginning and 50.3 MB in the end (delta: 43.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:27:19,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.74 ms. Allocated memory is still 94.4 MB. Free memory was 62.7 MB in the beginning and 68.5 MB in the end (delta: -5.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:19,266 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.87 ms. Allocated memory is still 94.4 MB. Free memory was 68.5 MB in the beginning and 66.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:19,267 INFO L168 Benchmark]: Boogie Preprocessor took 65.78 ms. Allocated memory is still 94.4 MB. Free memory was 66.6 MB in the beginning and 64.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:19,268 INFO L168 Benchmark]: RCFGBuilder took 710.77 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 64.8 MB in the beginning and 90.9 MB in the end (delta: -26.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:19,269 INFO L168 Benchmark]: TraceAbstraction took 814.01 ms. Allocated memory is still 117.4 MB. Free memory was 90.9 MB in the beginning and 92.7 MB in the end (delta: -1.8 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:19,269 INFO L168 Benchmark]: Witness Printer took 3.68 ms. Allocated memory is still 117.4 MB. Free memory was 92.7 MB in the beginning and 92.5 MB in the end (delta: 128.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:27:19,274 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67 ms. Allocated memory is still 94.4 MB. Free memory was 50.3 MB in the beginning and 50.3 MB in the end (delta: 43.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 414.74 ms. Allocated memory is still 94.4 MB. Free memory was 62.7 MB in the beginning and 68.5 MB in the end (delta: -5.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.87 ms. Allocated memory is still 94.4 MB. Free memory was 68.5 MB in the beginning and 66.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.78 ms. Allocated memory is still 94.4 MB. Free memory was 66.6 MB in the beginning and 64.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 710.77 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 64.8 MB in the beginning and 90.9 MB in the end (delta: -26.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 814.01 ms. Allocated memory is still 117.4 MB. Free memory was 90.9 MB in the beginning and 92.7 MB in the end (delta: -1.8 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. * Witness Printer took 3.68 ms. Allocated memory is still 117.4 MB. Free memory was 92.7 MB in the beginning and 92.5 MB in the end (delta: 128.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 142]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 113, overapproximation of bitwiseAnd at line 45, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L26-L30] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L32] static const float zero_log = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L134] float x = __VERIFIER_nondet_float(); [L136] EXPR x < 0 && isfinite_float(x) [L117] __int32_t ix; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L119] ieee_float_shape_type gf_u; [L120] gf_u.value = (x) [L121] EXPR gf_u.word [L121] (ix) = gf_u.word [L123] ix &= 0x7fffffff [L124] return (((ix) < 0x7f800000L)); VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L136] EXPR x < 0 && isfinite_float(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L136] COND TRUE (x < 0 && isfinite_float(x)) [L35] float hfsq, f, s, z, R, w, t1, t2, dk; [L36] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L39] ieee_float_shape_type gf_u; [L40] gf_u.value = (x) [L41] EXPR gf_u.word [L41] (ix) = gf_u.word [L44] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L45] COND TRUE ((ix & 0x7fffffff) == 0) [L46] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L138] float res = __ieee754_logf(x); [L113] return x != x; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L141] COND TRUE !isnan_float(res) [L142] reach_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 93 SDtfs, 0 SDslu, 39 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=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 232 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 00:27:21,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:27:21,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:27:21,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:27:21,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:27:21,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:27:21,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:27:21,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:27:21,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:27:21,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:27:21,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:27:21,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:27:21,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:27:21,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:27:21,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:27:21,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:27:21,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:27:21,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:27:21,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:27:21,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:27:21,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:27:21,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:27:21,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:27:21,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:27:21,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:27:21,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:27:21,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:27:21,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:27:21,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:27:21,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:27:21,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:27:21,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:27:21,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:27:21,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:27:21,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:27:21,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:27:21,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:27:21,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:27:21,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:27:21,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:27:21,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:27:21,943 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-11 00:27:22,001 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:27:22,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:27:22,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:27:22,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:27:22,005 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:27:22,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:27:22,006 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:27:22,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:27:22,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:27:22,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:27:22,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:27:22,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:27:22,009 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 00:27:22,009 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 00:27:22,009 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:27:22,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:27:22,010 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:27:22,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:27:22,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:27:22,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:27:22,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:27:22,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:27:22,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:27:22,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:27:22,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:27:22,012 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-11 00:27:22,013 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 00:27:22,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:27:22,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:27:22,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 00:27:22,014 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_d0769e43-b61b-4977-9099-782dcef00360/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8aa1a92a1779a20f74a516c833d3b843eed96e54 [2021-10-11 00:27:22,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:27:22,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:27:22,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:27:22,455 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:27:22,456 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:27:22,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2021-10-11 00:27:22,532 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC/data/5441aced0/5c5c45baa13d448785702fc1f5995d23/FLAGb6febc345 [2021-10-11 00:27:23,023 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:27:23,024 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2021-10-11 00:27:23,039 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC/data/5441aced0/5c5c45baa13d448785702fc1f5995d23/FLAGb6febc345 [2021-10-11 00:27:23,377 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC/data/5441aced0/5c5c45baa13d448785702fc1f5995d23 [2021-10-11 00:27:23,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:27:23,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:27:23,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:27:23,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:27:23,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:27:23,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:23" (1/1) ... [2021-10-11 00:27:23,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387b5852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:23, skipping insertion in model container [2021-10-11 00:27:23,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:23" (1/1) ... [2021-10-11 00:27:23,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:27:23,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:27:23,626 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_d0769e43-b61b-4977-9099-782dcef00360/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c[3541,3554] [2021-10-11 00:27:23,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:27:23,687 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:27:23,734 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_d0769e43-b61b-4977-9099-782dcef00360/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c[3541,3554] [2021-10-11 00:27:23,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:27:23,754 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:27:23,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:23 WrapperNode [2021-10-11 00:27:23,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:27:23,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:27:23,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:27:23,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:27:23,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:23" (1/1) ... [2021-10-11 00:27:23,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:23" (1/1) ... [2021-10-11 00:27:23,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:27:23,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:27:23,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:27:23,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:27:23,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:23" (1/1) ... [2021-10-11 00:27:23,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:23" (1/1) ... [2021-10-11 00:27:23,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:23" (1/1) ... [2021-10-11 00:27:23,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:23" (1/1) ... [2021-10-11 00:27:23,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:23" (1/1) ... [2021-10-11 00:27:23,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:23" (1/1) ... [2021-10-11 00:27:23,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:23" (1/1) ... [2021-10-11 00:27:23,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:27:23,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:27:23,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:27:23,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:27:23,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:23" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/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 00:27:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 00:27:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:27:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-11 00:27:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 00:27:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:27:23,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:27:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-11 00:27:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 00:27:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:27:46,885 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:27:46,885 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-11 00:27:46,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:46 BoogieIcfgContainer [2021-10-11 00:27:46,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:27:46,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:27:46,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:27:46,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:27:46,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:27:23" (1/3) ... [2021-10-11 00:27:46,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d1d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:27:46, skipping insertion in model container [2021-10-11 00:27:46,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:23" (2/3) ... [2021-10-11 00:27:46,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d1d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:27:46, skipping insertion in model container [2021-10-11 00:27:46,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:46" (3/3) ... [2021-10-11 00:27:46,897 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c [2021-10-11 00:27:46,912 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:27:46,915 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:27:46,927 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:27:46,952 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:27:46,952 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:27:46,952 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:27:46,953 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:27:46,953 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:27:46,953 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:27:46,953 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:27:46,953 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:27:46,966 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2021-10-11 00:27:46,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 00:27:46,972 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:46,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:46,973 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:46,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:46,979 INFO L82 PathProgramCache]: Analyzing trace with hash 627170052, now seen corresponding path program 1 times [2021-10-11 00:27:46,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:27:46,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858902646] [2021-10-11 00:27:46,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/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 00:27:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:47,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 00:27:47,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:27:47,741 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 00:27:47,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:27:47,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858902646] [2021-10-11 00:27:47,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:47,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:27:47,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929364996] [2021-10-11 00:27:47,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:27:47,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:27:47,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:27:47,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:27:47,764 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2021-10-11 00:27:47,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:47,782 INFO L93 Difference]: Finished difference Result 71 states and 112 transitions. [2021-10-11 00:27:47,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:27:47,783 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2021-10-11 00:27:47,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:47,793 INFO L225 Difference]: With dead ends: 71 [2021-10-11 00:27:47,793 INFO L226 Difference]: Without dead ends: 33 [2021-10-11 00:27:47,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 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 00:27:47,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-11 00:27:47,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-11 00:27:47,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 00:27:47,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2021-10-11 00:27:47,837 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 11 [2021-10-11 00:27:47,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:47,838 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2021-10-11 00:27:47,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:27:47,838 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2021-10-11 00:27:47,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 00:27:47,839 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:47,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:48,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 00:27:48,054 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:48,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:48,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1650641455, now seen corresponding path program 1 times [2021-10-11 00:27:48,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:27:48,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005422005] [2021-10-11 00:27:48,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/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 00:27:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:48,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:27:48,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:27:48,667 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 00:27:48,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:27:48,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005422005] [2021-10-11 00:27:48,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:48,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:27:48,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277208687] [2021-10-11 00:27:48,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:27:48,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:27:48,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:27:48,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:27:48,672 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand 3 states. [2021-10-11 00:27:48,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:48,734 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2021-10-11 00:27:48,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:27:48,735 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2021-10-11 00:27:48,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:48,736 INFO L225 Difference]: With dead ends: 59 [2021-10-11 00:27:48,736 INFO L226 Difference]: Without dead ends: 33 [2021-10-11 00:27:48,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 00:27:48,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-11 00:27:48,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-11 00:27:48,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 00:27:48,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2021-10-11 00:27:48,743 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 12 [2021-10-11 00:27:48,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:48,743 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-10-11 00:27:48,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:27:48,744 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2021-10-11 00:27:48,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 00:27:48,745 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:48,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:48,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 00:27:48,968 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:48,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:48,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1227406364, now seen corresponding path program 1 times [2021-10-11 00:27:48,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:27:48,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081369945] [2021-10-11 00:27:48,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/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 00:27:49,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:49,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 00:27:49,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:27:49,779 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-10-11 00:27:50,072 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 00:27:50,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:27:50,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081369945] [2021-10-11 00:27:50,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:50,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:27:50,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483294197] [2021-10-11 00:27:50,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:27:50,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:27:50,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:27:50,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:27:50,076 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 6 states. [2021-10-11 00:27:50,367 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 8 [2021-10-11 00:27:52,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:52,820 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2021-10-11 00:27:52,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:27:52,855 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2021-10-11 00:27:52,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:52,856 INFO L225 Difference]: With dead ends: 38 [2021-10-11 00:27:52,856 INFO L226 Difference]: Without dead ends: 18 [2021-10-11 00:27:52,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:27:52,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-11 00:27:52,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-11 00:27:52,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-11 00:27:52,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2021-10-11 00:27:52,861 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2021-10-11 00:27:52,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:52,861 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2021-10-11 00:27:52,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:27:52,862 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2021-10-11 00:27:52,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:27:52,862 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:52,862 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 00:27:53,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 00:27:53,063 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:53,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:53,064 INFO L82 PathProgramCache]: Analyzing trace with hash -618100041, now seen corresponding path program 1 times [2021-10-11 00:27:53,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:27:53,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493116562] [2021-10-11 00:27:53,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/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 00:27:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:53,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 00:27:53,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:27:54,218 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 00:27:54,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:27:54,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493116562] [2021-10-11 00:27:54,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:54,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:27:54,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403138829] [2021-10-11 00:27:54,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:27:54,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:27:54,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:27:54,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:27:54,221 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 6 states. [2021-10-11 00:27:55,144 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2021-10-11 00:27:55,668 WARN L197 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2021-10-11 00:27:56,115 WARN L197 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-10-11 00:27:56,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:56,116 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2021-10-11 00:27:56,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:27:56,116 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-10-11 00:27:56,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:56,116 INFO L225 Difference]: With dead ends: 18 [2021-10-11 00:27:56,117 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:27:56,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:27:56,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:27:56,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:27:56,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:27:56,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:27:56,118 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-10-11 00:27:56,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:56,118 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:27:56,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:27:56,118 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:27:56,118 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:27:56,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 00:27:56,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:27:56,666 WARN L197 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2021-10-11 00:27:57,013 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2021-10-11 00:27:57,147 INFO L262 CegarLoopResult]: For program point L118-1(lines 118 122) no Hoare annotation was computed. [2021-10-11 00:27:57,147 INFO L258 CegarLoopResult]: At program point L118-2(lines 118 122) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((v_prenex_1 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_1 (_ bv0 32)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) |ULTIMATE.start_main_#t~short14|) [2021-10-11 00:27:57,147 INFO L262 CegarLoopResult]: For program point L118-3(lines 118 122) no Hoare annotation was computed. [2021-10-11 00:27:57,147 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:27:57,147 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:27:57,147 INFO L262 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2021-10-11 00:27:57,147 INFO L262 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2021-10-11 00:27:57,148 INFO L262 CegarLoopResult]: For program point L136-2(lines 136 145) no Hoare annotation was computed. [2021-10-11 00:27:57,148 INFO L262 CegarLoopResult]: For program point L70(lines 70 86) no Hoare annotation was computed. [2021-10-11 00:27:57,148 INFO L262 CegarLoopResult]: For program point L136-4(lines 136 145) no Hoare annotation was computed. [2021-10-11 00:27:57,148 INFO L262 CegarLoopResult]: For program point L54-1(lines 54 58) no Hoare annotation was computed. [2021-10-11 00:27:57,148 INFO L258 CegarLoopResult]: At program point L54-2(lines 54 58) the Hoare annotation is: false [2021-10-11 00:27:57,148 INFO L262 CegarLoopResult]: For program point L71(lines 71 78) no Hoare annotation was computed. [2021-10-11 00:27:57,148 INFO L262 CegarLoopResult]: For program point L38-1(lines 38 42) no Hoare annotation was computed. [2021-10-11 00:27:57,148 INFO L258 CegarLoopResult]: At program point L38-2(lines 38 42) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((v_prenex_1 RoundingMode)) (fp.lt ULTIMATE.start___ieee754_logf_~x ((_ to_fp 8 24) v_prenex_1 (_ bv0 32)))) (exists ((v_prenex_1 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_1 (_ bv0 32)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0)) [2021-10-11 00:27:57,148 INFO L262 CegarLoopResult]: For program point L38-3(lines 38 42) no Hoare annotation was computed. [2021-10-11 00:27:57,149 INFO L262 CegarLoopResult]: For program point L63-1(lines 63 67) no Hoare annotation was computed. [2021-10-11 00:27:57,149 INFO L258 CegarLoopResult]: At program point L63-2(lines 63 67) the Hoare annotation is: false [2021-10-11 00:27:57,149 INFO L262 CegarLoopResult]: For program point L63-3(lines 63 67) no Hoare annotation was computed. [2021-10-11 00:27:57,149 INFO L258 CegarLoopResult]: At program point L113(line 113) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start___ieee754_logf_~x (_ FloatingPoint 8 24))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_logf_~x ULTIMATE.start___ieee754_logf_~x) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_logf_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0)) [2021-10-11 00:27:57,149 INFO L262 CegarLoopResult]: For program point L80(lines 80 85) no Hoare annotation was computed. [2021-10-11 00:27:57,149 INFO L262 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2021-10-11 00:27:57,170 INFO L262 CegarLoopResult]: For program point L105(lines 105 108) no Hoare annotation was computed. [2021-10-11 00:27:57,170 INFO L262 CegarLoopResult]: For program point L72(lines 72 77) no Hoare annotation was computed. [2021-10-11 00:27:57,170 INFO L262 CegarLoopResult]: For program point L97(lines 97 109) no Hoare annotation was computed. [2021-10-11 00:27:57,170 INFO L265 CegarLoopResult]: At program point L147(lines 127 148) the Hoare annotation is: true [2021-10-11 00:27:57,170 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:27:57,170 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2021-10-11 00:27:57,171 INFO L262 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2021-10-11 00:27:57,171 INFO L262 CegarLoopResult]: For program point L99(lines 99 103) no Hoare annotation was computed. [2021-10-11 00:27:57,171 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:27:57,171 INFO L258 CegarLoopResult]: At program point L124(lines 116 125) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((v_prenex_1 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_1 (_ bv0 32)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) |ULTIMATE.start_main_#t~short14|) [2021-10-11 00:27:57,171 INFO L262 CegarLoopResult]: For program point L141(lines 141 144) no Hoare annotation was computed. [2021-10-11 00:27:57,172 INFO L258 CegarLoopResult]: At program point L108(lines 34 110) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start___ieee754_logf_~x (_ FloatingPoint 8 24))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_logf_~x ULTIMATE.start___ieee754_logf_~x) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_logf_#res|)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0)) [2021-10-11 00:27:57,172 INFO L262 CegarLoopResult]: For program point L51(lines 51 59) no Hoare annotation was computed. [2021-10-11 00:27:57,172 INFO L262 CegarLoopResult]: For program point L51-1(lines 51 59) no Hoare annotation was computed. [2021-10-11 00:27:57,172 INFO L262 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2021-10-11 00:27:57,185 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,185 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,186 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,186 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2021-10-11 00:27:57,186 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2021-10-11 00:27:57,186 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,191 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,191 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,191 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,191 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2021-10-11 00:27:57,192 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2021-10-11 00:27:57,192 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,193 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,193 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 00:27:57,195 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,195 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 00:27:57,196 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,196 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,196 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,196 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2021-10-11 00:27:57,196 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2021-10-11 00:27:57,196 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,197 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,197 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,197 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,197 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2021-10-11 00:27:57,197 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2021-10-11 00:27:57,198 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,198 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,198 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 00:27:57,199 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,199 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 00:27:57,200 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,200 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 00:27:57,200 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 00:27:57,200 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,201 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 00:27:57,201 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 00:27:57,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:27:57 BoogieIcfgContainer [2021-10-11 00:27:57,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:27:57,213 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:27:57,213 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:27:57,213 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:27:57,214 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:46" (3/4) ... [2021-10-11 00:27:57,217 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:27:57,230 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-11 00:27:57,231 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-11 00:27:57,231 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:27:57,231 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:27:57,251 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists v_prenex_1 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_1, 0bv32)))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && aux-x < 0 && isfinite_float(x)-aux [2021-10-11 00:27:57,251 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists v_prenex_1 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_1, 0bv32)))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && aux-x < 0 && isfinite_float(x)-aux [2021-10-11 00:27:57,251 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists v_prenex_1 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_1, 0bv32)))) && (\exists v_prenex_1 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_1, 0bv32)))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log [2021-10-11 00:27:57,252 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists ULTIMATE.start___ieee754_logf_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_logf_~x, ULTIMATE.start___ieee754_logf_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log [2021-10-11 00:27:57,252 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists ULTIMATE.start___ieee754_logf_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_logf_~x, ULTIMATE.start___ieee754_logf_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result)) && 1bv32 == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log [2021-10-11 00:27:57,292 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0769e43-b61b-4977-9099-782dcef00360/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:27:57,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:27:57,293 INFO L168 Benchmark]: Toolchain (without parser) took 33912.02 ms. Allocated memory was 58.7 MB in the beginning and 83.9 MB in the end (delta: 25.2 MB). Free memory was 37.6 MB in the beginning and 57.0 MB in the end (delta: -19.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:57,294 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 58.7 MB. Free memory was 39.9 MB in the beginning and 39.9 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:27:57,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.41 ms. Allocated memory is still 58.7 MB. Free memory was 37.3 MB in the beginning and 39.9 MB in the end (delta: -2.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:57,295 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.58 ms. Allocated memory is still 58.7 MB. Free memory was 39.9 MB in the beginning and 37.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:27:57,295 INFO L168 Benchmark]: Boogie Preprocessor took 86.48 ms. Allocated memory is still 58.7 MB. Free memory was 37.8 MB in the beginning and 36.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:57,296 INFO L168 Benchmark]: RCFGBuilder took 22973.27 ms. Allocated memory was 58.7 MB in the beginning and 83.9 MB in the end (delta: 25.2 MB). Free memory was 35.8 MB in the beginning and 51.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:57,296 INFO L168 Benchmark]: TraceAbstraction took 10321.84 ms. Allocated memory is still 83.9 MB. Free memory was 51.3 MB in the beginning and 62.0 MB in the end (delta: -10.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:57,297 INFO L168 Benchmark]: Witness Printer took 79.65 ms. Allocated memory is still 83.9 MB. Free memory was 62.0 MB in the beginning and 57.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:57,299 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 58.7 MB. Free memory was 39.9 MB in the beginning and 39.9 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 373.41 ms. Allocated memory is still 58.7 MB. Free memory was 37.3 MB in the beginning and 39.9 MB in the end (delta: -2.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.58 ms. Allocated memory is still 58.7 MB. Free memory was 39.9 MB in the beginning and 37.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.48 ms. Allocated memory is still 58.7 MB. Free memory was 37.8 MB in the beginning and 36.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 22973.27 ms. Allocated memory was 58.7 MB in the beginning and 83.9 MB in the end (delta: 25.2 MB). Free memory was 35.8 MB in the beginning and 51.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10321.84 ms. Allocated memory is still 83.9 MB. Free memory was 51.3 MB in the beginning and 62.0 MB in the end (delta: -10.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. * Witness Printer took 79.65 ms. Allocated memory is still 83.9 MB. Free memory was 62.0 MB in the beginning and 57.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~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 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_logf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~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[v_prenex_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,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 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_logf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~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 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_logf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~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[v_prenex_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 142]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 113]: Loop Invariant [2021-10-11 00:27:57,310 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,310 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,310 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,310 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2021-10-11 00:27:57,310 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2021-10-11 00:27:57,311 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,311 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,311 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2021-10-11 00:27:57,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2021-10-11 00:27:57,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists ULTIMATE.start___ieee754_logf_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_logf_~x, ULTIMATE.start___ieee754_logf_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result)) && 1bv32 == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log - InvariantResult [Line: 116]: Loop Invariant [2021-10-11 00:27:57,313 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,313 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 00:27:57,314 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,314 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists v_prenex_1 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_1, 0bv32)))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && aux-x < 0 && isfinite_float(x)-aux - InvariantResult [Line: 34]: Loop Invariant [2021-10-11 00:27:57,314 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,314 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,315 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,315 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2021-10-11 00:27:57,315 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2021-10-11 00:27:57,315 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,316 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2021-10-11 00:27:57,316 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2021-10-11 00:27:57,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists ULTIMATE.start___ieee754_logf_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_logf_~x, ULTIMATE.start___ieee754_logf_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 118]: Loop Invariant [2021-10-11 00:27:57,318 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,318 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 00:27:57,318 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,318 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists v_prenex_1 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_1, 0bv32)))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && aux-x < 0 && isfinite_float(x)-aux - InvariantResult [Line: 38]: Loop Invariant [2021-10-11 00:27:57,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,319 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 00:27:57,319 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 00:27:57,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:27:57,320 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 00:27:57,320 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists v_prenex_1 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_1, 0bv32)))) && (\exists v_prenex_1 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_1, 0bv32)))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 116 SDtfs, 20 SDslu, 103 SDs, 0 SdLazy, 27 SolverSat, 1 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 14 NumberOfFragments, 101 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 11 QuantifiedInterpolants, 3704 SizeOfPredicates, 15 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...