./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.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_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad220425e59782d2842875bc5488a6e9ea4ef5ae ................................................................................................................................................................................................................................................ 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_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad220425e59782d2842875bc5488a6e9ea4ef5ae ............................................................................................................................................................................................................................................................................................................................ 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 02:24:09,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:24:09,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:24:09,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:24:09,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:24:09,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:24:09,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:24:09,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:24:09,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:24:09,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:24:09,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:24:09,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:24:09,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:24:09,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:24:09,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:24:09,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:24:09,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:24:09,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:24:09,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:24:09,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:24:09,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:24:09,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:24:09,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:24:09,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:24:09,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:24:09,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:24:09,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:24:09,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:24:09,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:24:09,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:24:09,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:24:09,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:24:09,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:24:09,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:24:09,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:24:09,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:24:09,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:24:09,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:24:09,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:24:09,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:24:09,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:24:09,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:24:09,655 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:24:09,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:24:09,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:24:09,657 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:24:09,657 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:24:09,658 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:24:09,658 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:24:09,658 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:24:09,664 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:24:09,665 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:24:09,666 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:24:09,666 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:24:09,666 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:24:09,667 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:24:09,667 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:24:09,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:24:09,668 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:24:09,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:24:09,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:24:09,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:24:09,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:24:09,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:24:09,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:24:09,670 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:24:09,670 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:24:09,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:24:09,670 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:24:09,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:24:09,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:24:09,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:24:09,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:24:09,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:24:09,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:24:09,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:24:09,674 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:24:09,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:24:09,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:24:09,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:24:09,675 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:24:09,675 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad220425e59782d2842875bc5488a6e9ea4ef5ae [2021-10-11 02:24:09,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:24:10,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:24:10,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:24:10,008 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:24:10,013 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:24:10,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2021-10-11 02:24:10,083 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/data/cf933591f/a29f8a7ba09d44778887f6d81fdb2030/FLAG115a5811c [2021-10-11 02:24:10,576 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:24:10,577 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2021-10-11 02:24:10,582 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/data/cf933591f/a29f8a7ba09d44778887f6d81fdb2030/FLAG115a5811c [2021-10-11 02:24:10,945 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/data/cf933591f/a29f8a7ba09d44778887f6d81fdb2030 [2021-10-11 02:24:10,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:24:10,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:24:10,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:10,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:24:10,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:24:10,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a07e0a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10, skipping insertion in model container [2021-10-11 02:24:10,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:24:10,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:24:11,131 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_b84908f5-e165-4a2c-8316-f421f08a21e4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2021-10-11 02:24:11,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:11,145 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:24:11,186 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_b84908f5-e165-4a2c-8316-f421f08a21e4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2021-10-11 02:24:11,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:11,202 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:24:11,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11 WrapperNode [2021-10-11 02:24:11,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:11,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:11,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:24:11,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:24:11,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:11,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:24:11,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:24:11,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:24:11,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:24:11,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:24:11,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:24:11,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:24:11,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/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 02:24:11,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:24:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:24:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:24:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:24:11,631 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:24:11,632 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:24:11,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:11 BoogieIcfgContainer [2021-10-11 02:24:11,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:24:11,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:24:11,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:24:11,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:24:11,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:24:10" (1/3) ... [2021-10-11 02:24:11,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fdc9560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:11, skipping insertion in model container [2021-10-11 02:24:11,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (2/3) ... [2021-10-11 02:24:11,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fdc9560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:11, skipping insertion in model container [2021-10-11 02:24:11,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:11" (3/3) ... [2021-10-11 02:24:11,658 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2021-10-11 02:24:11,688 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:24:11,691 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:24:11,702 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:24:11,726 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:24:11,726 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:24:11,726 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:24:11,726 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:24:11,727 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:24:11,727 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:24:11,727 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:24:11,727 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:24:11,740 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2021-10-11 02:24:11,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:24:11,745 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:11,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:24:11,746 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:11,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:11,752 INFO L82 PathProgramCache]: Analyzing trace with hash 44367, now seen corresponding path program 1 times [2021-10-11 02:24:11,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:11,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435193889] [2021-10-11 02:24:11,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:24:11,943 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:24:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:24:11,984 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:24:12,010 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:24:12,011 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:24:12,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:24:12,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:24:12 BoogieIcfgContainer [2021-10-11 02:24:12,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:24:12,036 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:24:12,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:24:12,037 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:24:12,037 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:11" (3/4) ... [2021-10-11 02:24:12,044 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:24:12,045 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:24:12,050 INFO L168 Benchmark]: Toolchain (without parser) took 1097.31 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 49.6 MB in the beginning and 66.0 MB in the end (delta: -16.4 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:12,052 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 86.0 MB. Free memory was 65.6 MB in the beginning and 65.6 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:12,054 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.01 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 49.4 MB in the beginning and 93.6 MB in the end (delta: -44.1 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:12,056 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.14 ms. Allocated memory is still 117.4 MB. Free memory was 93.6 MB in the beginning and 92.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:12,057 INFO L168 Benchmark]: Boogie Preprocessor took 29.24 ms. Allocated memory is still 117.4 MB. Free memory was 92.0 MB in the beginning and 91.1 MB in the end (delta: 866.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:12,058 INFO L168 Benchmark]: RCFGBuilder took 377.09 ms. Allocated memory is still 117.4 MB. Free memory was 91.1 MB in the beginning and 78.4 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:12,059 INFO L168 Benchmark]: TraceAbstraction took 382.90 ms. Allocated memory is still 117.4 MB. Free memory was 77.8 MB in the beginning and 66.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:12,060 INFO L168 Benchmark]: Witness Printer took 9.45 ms. Allocated memory is still 117.4 MB. Free memory was 66.3 MB in the beginning and 66.0 MB in the end (delta: 264.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:12,072 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 86.0 MB. Free memory was 65.6 MB in the beginning and 65.6 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 253.01 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 49.4 MB in the beginning and 93.6 MB in the end (delta: -44.1 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.14 ms. Allocated memory is still 117.4 MB. Free memory was 93.6 MB in the beginning and 92.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.24 ms. Allocated memory is still 117.4 MB. Free memory was 92.0 MB in the beginning and 91.1 MB in the end (delta: 866.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 377.09 ms. Allocated memory is still 117.4 MB. Free memory was 91.1 MB in the beginning and 78.4 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 382.90 ms. Allocated memory is still 117.4 MB. Free memory was 77.8 MB in the beginning and 66.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 9.45 ms. Allocated memory is still 117.4 MB. Free memory was 66.3 MB in the beginning and 66.0 MB in the end (delta: 264.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: 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 12, overapproximation of someBinaryArithmeticFLOAToperation at line 10, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L6] float f = 0x1.9e0c22p-101f; [L7] float g = -0x1.3c9014p-50f; [L8] float target = -0x1p-149f; [L10] float result = f * g; [L12] COND TRUE !(result == target) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 02:24:14,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:24:14,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:24:14,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:24:14,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:24:14,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:24:14,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:24:14,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:24:14,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:24:14,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:24:14,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:24:14,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:24:14,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:24:14,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:24:14,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:24:14,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:24:14,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:24:14,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:24:14,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:24:14,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:24:14,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:24:14,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:24:14,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:24:14,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:24:14,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:24:14,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:24:14,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:24:14,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:24:14,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:24:14,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:24:14,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:24:14,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:24:14,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:24:14,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:24:14,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:24:14,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:24:14,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:24:14,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:24:14,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:24:14,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:24:14,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:24:14,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:24:14,923 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:24:14,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:24:14,925 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:24:14,925 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:24:14,926 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:24:14,926 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:24:14,926 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:24:14,926 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:24:14,926 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:24:14,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:24:14,929 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:24:14,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:24:14,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:24:14,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:24:14,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:24:14,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:24:14,931 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:24:14,931 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:24:14,931 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:24:14,931 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:24:14,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:24:14,932 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:24:14,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:24:14,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:24:14,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:24:14,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:24:14,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:24:14,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:24:14,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:24:14,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:24:14,934 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:24:14,934 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:24:14,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:24:14,934 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:24:14,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:24:14,935 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_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad220425e59782d2842875bc5488a6e9ea4ef5ae [2021-10-11 02:24:15,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:24:15,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:24:15,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:24:15,377 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:24:15,378 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:24:15,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2021-10-11 02:24:15,464 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/data/743f80bb6/213d9aa551fe46498b7b70d1aefed1e4/FLAG500b2bba0 [2021-10-11 02:24:15,934 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:24:15,935 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2021-10-11 02:24:15,941 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/data/743f80bb6/213d9aa551fe46498b7b70d1aefed1e4/FLAG500b2bba0 [2021-10-11 02:24:16,315 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/data/743f80bb6/213d9aa551fe46498b7b70d1aefed1e4 [2021-10-11 02:24:16,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:24:16,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:24:16,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:16,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:24:16,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:24:16,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1483129c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16, skipping insertion in model container [2021-10-11 02:24:16,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:24:16,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:24:16,534 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_b84908f5-e165-4a2c-8316-f421f08a21e4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2021-10-11 02:24:16,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:16,556 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:24:16,577 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_b84908f5-e165-4a2c-8316-f421f08a21e4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2021-10-11 02:24:16,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:16,595 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:24:16,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16 WrapperNode [2021-10-11 02:24:16,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:16,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:16,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:24:16,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:24:16,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:16,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:24:16,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:24:16,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:24:16,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:24:16,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:24:16,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:24:16,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:24:16,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/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 02:24:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:24:16,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:24:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:24:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:24:17,371 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:24:17,371 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:24:17,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:17 BoogieIcfgContainer [2021-10-11 02:24:17,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:24:17,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:24:17,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:24:17,380 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:24:17,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:24:16" (1/3) ... [2021-10-11 02:24:17,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26458317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:17, skipping insertion in model container [2021-10-11 02:24:17,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (2/3) ... [2021-10-11 02:24:17,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26458317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:17, skipping insertion in model container [2021-10-11 02:24:17,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:17" (3/3) ... [2021-10-11 02:24:17,385 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2021-10-11 02:24:17,403 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:24:17,407 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:24:17,419 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:24:17,464 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:24:17,464 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:24:17,464 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:24:17,464 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:24:17,465 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:24:17,465 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:24:17,465 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:24:17,465 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:24:17,479 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 02:24:17,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:24:17,486 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:17,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:24:17,487 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:17,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:17,494 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-10-11 02:24:17,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:24:17,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446875976] [2021-10-11 02:24:17,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/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 02:24:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:17,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 02:24:17,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:24:17,888 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 02:24:17,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:24:17,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446875976] [2021-10-11 02:24:17,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:17,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:24:17,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515391468] [2021-10-11 02:24:17,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:24:17,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:24:17,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:24:17,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:24:17,913 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2021-10-11 02:24:18,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:18,071 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-11 02:24:18,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:24:18,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2021-10-11 02:24:18,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:18,079 INFO L225 Difference]: With dead ends: 13 [2021-10-11 02:24:18,079 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:24:18,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:24:18,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:24:18,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:24:18,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:24:18,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:24:18,114 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-11 02:24:18,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:18,115 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:24:18,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:24:18,115 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:24:18,115 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:24:18,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:24:18,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:24:18,386 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:24:18,387 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:24:18,387 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:24:18,387 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:24:18,387 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-11 02:24:18,388 INFO L258 CegarLoopResult]: At program point L14(lines 5 15) the Hoare annotation is: (and (= (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 13567505.0 21267647932558653966460912964485513216.0)) (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 5186565.0 4722366482869645213696.0)))) ULTIMATE.start_main_~result~0) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_main_~target~0 (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 713623846352979940529142984724747568191373312.0))))) [2021-10-11 02:24:18,388 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2021-10-11 02:24:18,388 INFO L262 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-10-11 02:24:18,388 INFO L262 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-10-11 02:24:18,398 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,399 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,399 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,399 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,399 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,403 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,404 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,404 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,404 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,404 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:24:18 BoogieIcfgContainer [2021-10-11 02:24:18,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:24:18,408 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:24:18,409 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:24:18,409 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:24:18,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:17" (3/4) ... [2021-10-11 02:24:18,413 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:24:18,423 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-11 02:24:18,424 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-11 02:24:18,424 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:24:18,424 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:24:18,458 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84908f5-e165-4a2c-8316-f421f08a21e4/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:24:18,459 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:24:18,461 INFO L168 Benchmark]: Toolchain (without parser) took 2140.69 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 33.0 MB in the beginning and 36.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:18,461 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 54.5 MB. Free memory is still 35.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:18,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.34 ms. Allocated memory is still 54.5 MB. Free memory was 32.8 MB in the beginning and 36.0 MB in the end (delta: -3.2 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:18,463 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.35 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 36.0 MB in the beginning and 57.5 MB in the end (delta: -21.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:18,464 INFO L168 Benchmark]: Boogie Preprocessor took 38.76 ms. Allocated memory is still 73.4 MB. Free memory was 57.5 MB in the beginning and 56.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:18,464 INFO L168 Benchmark]: RCFGBuilder took 649.42 ms. Allocated memory is still 73.4 MB. Free memory was 56.2 MB in the beginning and 45.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:18,465 INFO L168 Benchmark]: TraceAbstraction took 1031.25 ms. Allocated memory is still 73.4 MB. Free memory was 44.7 MB in the beginning and 38.6 MB in the end (delta: 6.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:18,466 INFO L168 Benchmark]: Witness Printer took 50.28 ms. Allocated memory is still 73.4 MB. Free memory was 38.3 MB in the beginning and 36.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:18,469 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 54.5 MB. Free memory is still 35.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 264.34 ms. Allocated memory is still 54.5 MB. Free memory was 32.8 MB in the beginning and 36.0 MB in the end (delta: -3.2 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.35 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 36.0 MB in the beginning and 57.5 MB in the end (delta: -21.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.76 ms. Allocated memory is still 73.4 MB. Free memory was 57.5 MB in the beginning and 56.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 649.42 ms. Allocated memory is still 73.4 MB. Free memory was 56.2 MB in the beginning and 45.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1031.25 ms. Allocated memory is still 73.4 MB. Free memory was 44.7 MB in the beginning and 38.6 MB in the end (delta: 6.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Witness Printer took 50.28 ms. Allocated memory is still 73.4 MB. Free memory was 38.3 MB in the beginning and 36.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 5]: Loop Invariant [2021-10-11 02:24:18,478 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,478 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,478 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,496 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,496 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,497 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,497 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,497 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,497 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:24:18,497 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.mul~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 13567505/21267647932558653966460912964485513216), ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5186565/4722366482869645213696))) == result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && target == ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/713623846352979940529142984724747568191373312)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 9 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 21 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 SizeOfPredicates, 5 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...