./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float22.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH --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 a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:54:30,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:54:30,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:54:30,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:54:30,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:54:30,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:54:30,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:54:30,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:54:30,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:54:30,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:54:30,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:54:30,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:54:30,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:54:30,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:54:30,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:54:30,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:54:30,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:54:30,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:54:30,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:54:30,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:54:30,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:54:30,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:54:30,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:54:30,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:54:30,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:54:30,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:54:30,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:54:30,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:54:30,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:54:30,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:54:30,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:54:30,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:54:30,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:54:30,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:54:30,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:54:30,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:54:30,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:54:30,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:54:30,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:54:30,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:54:30,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:54:30,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 03:54:30,889 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:54:30,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:54:30,891 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:54:30,891 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:54:30,891 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:54:30,892 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:54:30,892 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:54:30,892 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:54:30,892 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:54:30,893 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:54:30,900 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:54:30,900 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:54:30,901 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:54:30,901 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:54:30,901 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:54:30,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:54:30,902 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 03:54:30,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:54:30,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 03:54:30,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:54:30,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:54:30,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:54:30,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:54:30,904 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:54:30,904 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 03:54:30,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:54:30,905 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:54:30,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:54:30,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:54:30,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:54:30,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:54:30,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:54:30,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:54:30,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:54:30,909 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:54:30,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:54:30,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:54:30,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:54:30,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:54:30,910 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_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2021-11-03 03:54:31,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:54:31,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:54:31,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:54:31,204 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:54:31,205 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:54:31,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-03 03:54:31,284 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/data/de9fa8115/e448515697c149faac45bef2e6177c82/FLAG251b6aa81 [2021-11-03 03:54:31,780 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:54:31,781 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-03 03:54:31,808 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/data/de9fa8115/e448515697c149faac45bef2e6177c82/FLAG251b6aa81 [2021-11-03 03:54:32,134 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/data/de9fa8115/e448515697c149faac45bef2e6177c82 [2021-11-03 03:54:32,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:54:32,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:54:32,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:54:32,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:54:32,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:54:32,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:32" (1/1) ... [2021-11-03 03:54:32,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c78ce2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:32, skipping insertion in model container [2021-11-03 03:54:32,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:32" (1/1) ... [2021-11-03 03:54:32,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:54:32,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:54:32,352 WARN L228 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_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-03 03:54:32,357 WARN L228 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_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-03 03:54:32,359 WARN L228 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_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-03 03:54:32,362 WARN L228 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_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-03 03:54:32,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:54:32,373 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:54:32,398 WARN L228 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_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-03 03:54:32,402 WARN L228 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_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-03 03:54:32,404 WARN L228 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_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-03 03:54:32,412 WARN L228 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_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-03 03:54:32,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:54:32,428 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:54:32,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:32 WrapperNode [2021-11-03 03:54:32,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:54:32,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:54:32,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:54:32,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:54:32,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:32" (1/1) ... [2021-11-03 03:54:32,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:32" (1/1) ... [2021-11-03 03:54:32,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:54:32,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:54:32,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:54:32,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:54:32,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:32" (1/1) ... [2021-11-03 03:54:32,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:32" (1/1) ... [2021-11-03 03:54:32,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:32" (1/1) ... [2021-11-03 03:54:32,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:32" (1/1) ... [2021-11-03 03:54:32,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:32" (1/1) ... [2021-11-03 03:54:32,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:32" (1/1) ... [2021-11-03 03:54:32,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:32" (1/1) ... [2021-11-03 03:54:32,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:54:32,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:54:32,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:54:32,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:54:32,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:32" (1/1) ... [2021-11-03 03:54:32,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:54:32,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:54:32,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:54:32,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:54:32,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 03:54:32,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:54:32,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-03 03:54:32,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 03:54:32,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-03 03:54:32,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:54:32,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:54:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 03:54:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:54:33,906 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:54:33,906 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-11-03 03:54:33,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:54:33 BoogieIcfgContainer [2021-11-03 03:54:33,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:54:33,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:54:33,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:54:33,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:54:33,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:54:32" (1/3) ... [2021-11-03 03:54:33,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb96bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:54:33, skipping insertion in model container [2021-11-03 03:54:33,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:32" (2/3) ... [2021-11-03 03:54:33,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb96bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:54:33, skipping insertion in model container [2021-11-03 03:54:33,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:54:33" (3/3) ... [2021-11-03 03:54:33,917 INFO L111 eAbstractionObserver]: Analyzing ICFG float22.i [2021-11-03 03:54:33,923 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:54:33,923 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-03 03:54:33,974 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:54:33,981 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:54:33,982 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-03 03:54:33,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:54:34,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-03 03:54:34,002 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:34,003 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-03 03:54:34,003 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 03:54:34,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:34,010 INFO L85 PathProgramCache]: Analyzing trace with hash 103116, now seen corresponding path program 1 times [2021-11-03 03:54:34,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:54:34,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728851988] [2021-11-03 03:54:34,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:34,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:54:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 03:54:34,270 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 03:54:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 03:54:34,392 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-03 03:54:34,395 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 03:54:34,396 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:54:34,399 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:54:34,399 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:54:34,400 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:54:34,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 03:54:34,405 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-03 03:54:34,408 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 03:54:34,414 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-11-03 03:54:34,415 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-11-03 03:54:34,415 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-11-03 03:54:34,416 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-11-03 03:54:34,416 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-11-03 03:54:34,416 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-11-03 03:54:34,417 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-11-03 03:54:34,417 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-11-03 03:54:34,418 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-11-03 03:54:34,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:54:34 BoogieIcfgContainer [2021-11-03 03:54:34,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 03:54:34,435 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 03:54:34,435 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 03:54:34,435 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 03:54:34,436 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:54:33" (3/4) ... [2021-11-03 03:54:34,440 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-03 03:54:34,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 03:54:34,442 INFO L168 Benchmark]: Toolchain (without parser) took 2303.14 ms. Allocated memory was 117.4 MB in the beginning and 161.5 MB in the end (delta: 44.0 MB). Free memory was 88.2 MB in the beginning and 97.2 MB in the end (delta: -9.0 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. [2021-11-03 03:54:34,443 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 117.4 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:54:34,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.92 ms. Allocated memory was 117.4 MB in the beginning and 161.5 MB in the end (delta: 44.0 MB). Free memory was 88.2 MB in the beginning and 134.3 MB in the end (delta: -46.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 03:54:34,445 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.35 ms. Allocated memory is still 161.5 MB. Free memory was 134.3 MB in the beginning and 131.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:54:34,446 INFO L168 Benchmark]: Boogie Preprocessor took 45.71 ms. Allocated memory is still 161.5 MB. Free memory was 131.7 MB in the beginning and 129.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:54:34,446 INFO L168 Benchmark]: RCFGBuilder took 1361.00 ms. Allocated memory is still 161.5 MB. Free memory was 129.7 MB in the beginning and 116.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. [2021-11-03 03:54:34,447 INFO L168 Benchmark]: TraceAbstraction took 524.09 ms. Allocated memory is still 161.5 MB. Free memory was 116.0 MB in the beginning and 97.2 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-11-03 03:54:34,448 INFO L168 Benchmark]: Witness Printer took 5.04 ms. Allocated memory is still 161.5 MB. Free memory is still 97.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:54:34,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 117.4 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.92 ms. Allocated memory was 117.4 MB in the beginning and 161.5 MB in the end (delta: 44.0 MB). Free memory was 88.2 MB in the beginning and 134.3 MB in the end (delta: -46.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.35 ms. Allocated memory is still 161.5 MB. Free memory was 134.3 MB in the beginning and 131.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.71 ms. Allocated memory is still 161.5 MB. Free memory was 131.7 MB in the beginning and 129.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1361.00 ms. Allocated memory is still 161.5 MB. Free memory was 129.7 MB in the beginning and 116.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 524.09 ms. Allocated memory is still 161.5 MB. Free memory was 116.0 MB in the beginning and 97.2 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.04 ms. Allocated memory is still 161.5 MB. Free memory is still 97.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 144]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 130. Possible FailurePath: [L139] ieee754_float f1, f2; [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; [L141] f1 = returnsStructure(0) [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; [L142] f2 = returnsStructure(1) [L144] EXPR f1.ieee.negative [L144] EXPR f2.ieee.negative VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=0] [L144] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L144] reach_error() VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=0] - UnprovableResult [Line: 156]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 161]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 173]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 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, 0.1s 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 [2021-11-03 03:54:34,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH --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 a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:54:36,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:54:36,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:54:37,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:54:37,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:54:37,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:54:37,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:54:37,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:54:37,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:54:37,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:54:37,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:54:37,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:54:37,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:54:37,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:54:37,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:54:37,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:54:37,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:54:37,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:54:37,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:54:37,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:54:37,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:54:37,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:54:37,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:54:37,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:54:37,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:54:37,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:54:37,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:54:37,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:54:37,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:54:37,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:54:37,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:54:37,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:54:37,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:54:37,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:54:37,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:54:37,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:54:37,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:54:37,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:54:37,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:54:37,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:54:37,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:54:37,128 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 03:54:37,172 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:54:37,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:54:37,173 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:54:37,173 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:54:37,174 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:54:37,174 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:54:37,174 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:54:37,174 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:54:37,175 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:54:37,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:54:37,177 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 03:54:37,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 03:54:37,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:54:37,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:54:37,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:54:37,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:54:37,179 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:54:37,179 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:54:37,179 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:54:37,179 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 03:54:37,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:54:37,180 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:54:37,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:54:37,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:54:37,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:54:37,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:54:37,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:54:37,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:54:37,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:54:37,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:54:37,182 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:54:37,182 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:54:37,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:54:37,183 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:54:37,183 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:54:37,183 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_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2021-11-03 03:54:37,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:54:37,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:54:37,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:54:37,572 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:54:37,573 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:54:37,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-03 03:54:37,656 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/data/bc6bf47e5/9a226838514a448994fb3067e5cc5763/FLAGeecf434cc [2021-11-03 03:54:38,193 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:54:38,194 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-03 03:54:38,210 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/data/bc6bf47e5/9a226838514a448994fb3067e5cc5763/FLAGeecf434cc [2021-11-03 03:54:38,540 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/data/bc6bf47e5/9a226838514a448994fb3067e5cc5763 [2021-11-03 03:54:38,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:54:38,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:54:38,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:54:38,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:54:38,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:54:38,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:38" (1/1) ... [2021-11-03 03:54:38,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28422e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:38, skipping insertion in model container [2021-11-03 03:54:38,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:38" (1/1) ... [2021-11-03 03:54:38,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:54:38,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:54:38,766 WARN L228 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_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-03 03:54:38,771 WARN L228 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_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-03 03:54:38,773 WARN L228 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_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-03 03:54:38,775 WARN L228 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_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-03 03:54:38,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:54:38,790 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:54:38,816 WARN L228 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_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-03 03:54:38,820 WARN L228 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_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-03 03:54:38,822 WARN L228 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_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-03 03:54:38,826 WARN L228 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_fbdf3fd3-055c-494a-babe-285dbef18e34/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-03 03:54:38,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:54:38,843 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:54:38,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:38 WrapperNode [2021-11-03 03:54:38,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:54:38,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:54:38,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:54:38,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:54:38,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:38" (1/1) ... [2021-11-03 03:54:38,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:38" (1/1) ... [2021-11-03 03:54:38,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:54:38,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:54:38,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:54:38,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:54:38,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:38" (1/1) ... [2021-11-03 03:54:38,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:38" (1/1) ... [2021-11-03 03:54:38,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:38" (1/1) ... [2021-11-03 03:54:38,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:38" (1/1) ... [2021-11-03 03:54:39,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:38" (1/1) ... [2021-11-03 03:54:39,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:38" (1/1) ... [2021-11-03 03:54:39,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:38" (1/1) ... [2021-11-03 03:54:39,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:54:39,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:54:39,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:54:39,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:54:39,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:38" (1/1) ... [2021-11-03 03:54:39,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:54:39,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:54:39,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:54:39,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:54:39,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:54:39,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:54:39,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-03 03:54:39,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 03:54:39,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:54:39,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:54:39,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-03 03:54:39,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:54:39,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 03:54:39,715 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:54:39,716 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-11-03 03:54:39,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:54:39 BoogieIcfgContainer [2021-11-03 03:54:39,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:54:39,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:54:39,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:54:39,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:54:39,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:54:38" (1/3) ... [2021-11-03 03:54:39,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aefcd7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:54:39, skipping insertion in model container [2021-11-03 03:54:39,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:38" (2/3) ... [2021-11-03 03:54:39,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aefcd7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:54:39, skipping insertion in model container [2021-11-03 03:54:39,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:54:39" (3/3) ... [2021-11-03 03:54:39,726 INFO L111 eAbstractionObserver]: Analyzing ICFG float22.i [2021-11-03 03:54:39,733 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:54:39,733 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-03 03:54:39,783 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:54:39,789 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:54:39,790 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-03 03:54:39,804 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:54:39,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 03:54:39,809 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:39,810 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 03:54:39,810 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 03:54:39,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:39,817 INFO L85 PathProgramCache]: Analyzing trace with hash 889475942, now seen corresponding path program 1 times [2021-11-03 03:54:39,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:54:39,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [855407010] [2021-11-03 03:54:39,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:39,831 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:54:39,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:54:39,835 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:54:39,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:54:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:54:40,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-03 03:54:40,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:54:40,253 INFO L354 Elim1Store]: treesize reduction 47, result has 25.4 percent of original size [2021-11-03 03:54:40,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 74 treesize of output 78 [2021-11-03 03:54:40,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 75 [2021-11-03 03:54:40,937 INFO L354 Elim1Store]: treesize reduction 977, result has 5.0 percent of original size [2021-11-03 03:54:40,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 165 treesize of output 153 [2021-11-03 03:54:41,012 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-03 03:54:41,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 128 treesize of output 136 [2021-11-03 03:54:41,304 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-03 03:54:41,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 24423 treesize of output 23875 [2021-11-03 03:54:44,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:54:44,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:54:55,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:54:55,362 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:54:55,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [855407010] [2021-11-03 03:54:55,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [855407010] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:54:55,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:54:55,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 03:54:55,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728786963] [2021-11-03 03:54:55,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 03:54:55,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:54:55,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 03:54:55,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=38, Unknown=2, NotChecked=0, Total=56 [2021-11-03 03:54:55,393 INFO L87 Difference]: Start difference. First operand has 32 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:54:56,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:54:56,183 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2021-11-03 03:54:56,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:54:56,188 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-03 03:54:56,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:54:56,196 INFO L225 Difference]: With dead ends: 57 [2021-11-03 03:54:56,196 INFO L226 Difference]: Without dead ends: 25 [2021-11-03 03:54:56,199 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=22, Invalid=48, Unknown=2, NotChecked=0, Total=72 [2021-11-03 03:54:56,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-03 03:54:56,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-03 03:54:56,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 24 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:54:56,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2021-11-03 03:54:56,232 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 6 [2021-11-03 03:54:56,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:54:56,232 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2021-11-03 03:54:56,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:54:56,233 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2021-11-03 03:54:56,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 03:54:56,234 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:56,234 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:54:56,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:54:56,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:54:56,456 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 03:54:56,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:56,457 INFO L85 PathProgramCache]: Analyzing trace with hash 2061469933, now seen corresponding path program 1 times [2021-11-03 03:54:56,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:54:56,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702007791] [2021-11-03 03:54:56,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:56,458 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:54:56,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:54:56,459 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:54:56,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:54:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:54:56,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-03 03:54:56,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:54:56,825 INFO L354 Elim1Store]: treesize reduction 46, result has 27.0 percent of original size [2021-11-03 03:54:56,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 81 [2021-11-03 03:54:56,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2021-11-03 03:54:57,389 INFO L354 Elim1Store]: treesize reduction 977, result has 5.0 percent of original size [2021-11-03 03:54:57,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 166 treesize of output 154 [2021-11-03 03:54:57,466 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-03 03:54:57,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 129 treesize of output 137 [2021-11-03 03:54:57,694 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-03 03:54:57,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 435 treesize of output 391 [2021-11-03 03:54:57,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:54:57,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:54:59,861 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testTwo_~#f2~1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem14_9| (_ BitVec 32)) (|ULTIMATE.start_returnsStructure_#res.ieee.mantissa| (_ BitVec 32)) (|ULTIMATE.start_returnsStructure_#res.ieee.exponent| (_ BitVec 32))) (or (not (= |v_ULTIMATE.start_testTwo_#t~mem14_9| (select (select (store |c_#memory_int| |c_ULTIMATE.start_testTwo_~#f2~1.base| (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_testTwo_~#f2~1.base|) |ULTIMATE.start_testTwo_~#f2~1.offset| |c_ULTIMATE.start_returnsStructure_#res.ieee.negative|) (bvadd (_ bv4 32) |ULTIMATE.start_testTwo_~#f2~1.offset|) |ULTIMATE.start_returnsStructure_#res.ieee.exponent|) (bvadd (_ bv8 32) |ULTIMATE.start_testTwo_~#f2~1.offset|) |ULTIMATE.start_returnsStructure_#res.ieee.mantissa|) |ULTIMATE.start_testTwo_~#f2~1.offset| |v_ULTIMATE.start_testTwo_#t~mem14_9|)) |c_ULTIMATE.start_testTwo_~#f1~1.base|) |c_ULTIMATE.start_testTwo_~#f1~1.offset|))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem14_9|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem14_9|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem14_9|)) |c_ULTIMATE.start_returnsStructure_#res.f|)))) is different from false [2021-11-03 03:55:03,043 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testTwo_~#f2~1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_returnsStructure_#res.ieee.exponent_19| (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem14_9| (_ BitVec 32)) (|v_ULTIMATE.start_returnsStructure_~#c~1.base_23| (_ BitVec 32)) (|ULTIMATE.start_returnsStructure_#res.ieee.mantissa| (_ BitVec 32)) (|ULTIMATE.start_returnsStructure_#res.ieee.negative| (_ BitVec 32)) (|ULTIMATE.start_returnsStructure_#res.ieee.exponent| (_ BitVec 32)) (|ULTIMATE.start_testTwo_~#f1~1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_returnsStructure_#res.ieee.mantissa_19| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_19| (_ BitVec 32))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_testTwo_~#f1~1.base| (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_testTwo_~#f1~1.base|) |ULTIMATE.start_testTwo_~#f1~1.offset| |ULTIMATE.start_returnsStructure_#res.ieee.negative|) (bvadd (_ bv4 32) |ULTIMATE.start_testTwo_~#f1~1.offset|) |ULTIMATE.start_returnsStructure_#res.ieee.exponent|) (bvadd (_ bv8 32) |ULTIMATE.start_testTwo_~#f1~1.offset|) |ULTIMATE.start_returnsStructure_#res.ieee.mantissa|) |ULTIMATE.start_testTwo_~#f1~1.offset| |v_skolemized_q#valueAsBitvector_19|)))) (let ((.cse3 (store (store (store (select .cse2 |v_ULTIMATE.start_returnsStructure_~#c~1.base_23|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (let ((.cse1 (select .cse3 (_ bv0 32)))) (or (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_19|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_19|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_19|)) |c_ULTIMATE.start_returnsStructure_#res.f|)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_returnsStructure_~#c~1.base_23|))) (not (= |v_ULTIMATE.start_testTwo_#t~mem14_9| (select (select (let ((.cse0 (store .cse2 |v_ULTIMATE.start_returnsStructure_~#c~1.base_23| .cse3))) (store .cse0 |c_ULTIMATE.start_testTwo_~#f2~1.base| (store (store (store (store (select .cse0 |c_ULTIMATE.start_testTwo_~#f2~1.base|) |ULTIMATE.start_testTwo_~#f2~1.offset| .cse1) (bvadd (_ bv4 32) |ULTIMATE.start_testTwo_~#f2~1.offset|) |v_ULTIMATE.start_returnsStructure_#res.ieee.exponent_19|) (bvadd (_ bv8 32) |ULTIMATE.start_testTwo_~#f2~1.offset|) |v_ULTIMATE.start_returnsStructure_#res.ieee.mantissa_19|) |ULTIMATE.start_testTwo_~#f2~1.offset| |v_ULTIMATE.start_testTwo_#t~mem14_9|))) |c_ULTIMATE.start_testTwo_~#f1~1.base|) |ULTIMATE.start_testTwo_~#f1~1.offset|))) (not (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem14_9|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem14_9|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem14_9|))))))))) is different from false [2021-11-03 03:55:03,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:55:03,116 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:55:03,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702007791] [2021-11-03 03:55:03,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702007791] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:55:03,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:55:03,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 03:55:03,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640781317] [2021-11-03 03:55:03,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 03:55:03,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:55:03,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 03:55:03,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=22, Unknown=2, NotChecked=18, Total=56 [2021-11-03 03:55:03,121 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:08,832 WARN L207 SmtUtils]: Spent 5.57 s on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2021-11-03 03:55:11,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:55:11,794 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2021-11-03 03:55:11,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 03:55:11,795 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-03 03:55:11,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:55:11,796 INFO L225 Difference]: With dead ends: 25 [2021-11-03 03:55:11,796 INFO L226 Difference]: Without dead ends: 23 [2021-11-03 03:55:11,796 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 2 IntricatePredicates, 2 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=28, Invalid=50, Unknown=2, NotChecked=30, Total=110 [2021-11-03 03:55:11,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-03 03:55:11,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-11-03 03:55:11,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 22 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:11,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2021-11-03 03:55:11,802 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 11 [2021-11-03 03:55:11,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:55:11,803 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2021-11-03 03:55:11,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:11,803 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2021-11-03 03:55:11,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 03:55:11,804 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:55:11,804 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:55:11,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:55:12,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:55:12,008 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 03:55:12,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:55:12,009 INFO L85 PathProgramCache]: Analyzing trace with hash -2079313263, now seen corresponding path program 1 times [2021-11-03 03:55:12,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:55:12,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547659687] [2021-11-03 03:55:12,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:55:12,010 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:55:12,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:55:12,012 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:55:12,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:55:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:55:12,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-03 03:55:12,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:55:12,571 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-11-03 03:55:12,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 34 [2021-11-03 03:55:12,742 INFO L354 Elim1Store]: treesize reduction 81, result has 23.6 percent of original size [2021-11-03 03:55:12,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 35 treesize of output 50 [2021-11-03 03:55:13,041 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-03 03:55:13,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 95 [2021-11-03 03:55:13,098 INFO L354 Elim1Store]: treesize reduction 81, result has 23.6 percent of original size [2021-11-03 03:55:13,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 89 treesize of output 104 [2021-11-03 03:55:13,443 INFO L354 Elim1Store]: treesize reduction 132, result has 25.0 percent of original size [2021-11-03 03:55:13,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 16 case distinctions, treesize of input 153 treesize of output 152 [2021-11-03 03:55:13,496 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-11-03 03:55:13,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 134 treesize of output 138 [2021-11-03 03:55:13,709 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 03:55:13,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 101 treesize of output 65 [2021-11-03 03:55:13,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:55:13,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:55:21,971 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_testTwo_#t~mem18_10| (_ BitVec 32)) (|v_ULTIMATE.start_returnsField_~#c~0.base_17| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_21| (_ BitVec 32)) (|v_ULTIMATE.start_returnsField_~#c~0.base_18| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_returnsField_~#c~0.base_17|) (_ bv0 32) (_ bv0 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (let ((.cse5 (let ((.cse6 (store |c_#memory_int| |v_ULTIMATE.start_returnsField_~#c~0.base_17| .cse1))) (store .cse6 |c_ULTIMATE.start_testTwo_~#f1~1.base| (store (select .cse6 |c_ULTIMATE.start_testTwo_~#f1~1.base|) |c_ULTIMATE.start_testTwo_~#f1~1.offset| |v_skolemized_q#valueAsBitvector_21|))))) (let ((.cse3 (store (store (store (select .cse5 |v_ULTIMATE.start_returnsField_~#c~0.base_18|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_21|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_21|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_21|)) (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) (not (= (_ bv0 1) (select (store |c_#valid| |v_ULTIMATE.start_returnsField_~#c~0.base_17| (_ bv0 1)) |v_ULTIMATE.start_returnsField_~#c~0.base_18|))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem18_10|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem18_10|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem18_10|)) (let ((.cse2 (select .cse3 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (not (= (select (select (let ((.cse4 (store .cse5 |v_ULTIMATE.start_returnsField_~#c~0.base_18| .cse3))) (store .cse4 |c_ULTIMATE.start_testTwo_~#f2~1.base| (store (select .cse4 |c_ULTIMATE.start_testTwo_~#f2~1.base|) |c_ULTIMATE.start_testTwo_~#f2~1.offset| |v_ULTIMATE.start_testTwo_#t~mem18_10|))) |c_ULTIMATE.start_testTwo_~#f1~1.base|) |c_ULTIMATE.start_testTwo_~#f1~1.offset|) |v_ULTIMATE.start_testTwo_#t~mem18_10|)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_returnsField_~#c~0.base_17|)))))))) is different from false [2021-11-03 03:55:26,954 INFO L354 Elim1Store]: treesize reduction 46, result has 54.0 percent of original size [2021-11-03 03:55:26,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 1347 treesize of output 1306 [2021-11-03 03:55:27,348 INFO L354 Elim1Store]: treesize reduction 39, result has 52.4 percent of original size [2021-11-03 03:55:27,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 1234 treesize of output 1246 [2021-11-03 03:55:27,541 INFO L354 Elim1Store]: treesize reduction 28, result has 42.9 percent of original size [2021-11-03 03:55:27,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1251 treesize of output 1259 [2021-11-03 03:55:28,637 INFO L354 Elim1Store]: treesize reduction 42, result has 47.5 percent of original size [2021-11-03 03:55:28,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 55 treesize of output 81 [2021-11-03 03:55:29,995 INFO L354 Elim1Store]: treesize reduction 42, result has 52.3 percent of original size [2021-11-03 03:55:29,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 93 [2021-11-03 03:55:33,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2021-11-03 03:55:33,612 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-03 03:55:33,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-03 03:55:33,701 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:55:33,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 195 treesize of output 179 [2021-11-03 03:55:34,518 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:55:34,519 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:55:34,540 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:55:34,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 196 treesize of output 201 [2021-11-03 03:55:34,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2021-11-03 03:55:35,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:55:35,360 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:55:35,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [547659687] [2021-11-03 03:55:35,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [547659687] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:55:35,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:55:35,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-03 03:55:35,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816325215] [2021-11-03 03:55:35,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-03 03:55:35,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:55:35,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-03 03:55:35,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=117, Unknown=3, NotChecked=22, Total=182 [2021-11-03 03:55:35,364 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:41,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:55:41,998 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-11-03 03:55:42,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 03:55:42,000 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-03 03:55:42,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:55:42,002 INFO L225 Difference]: With dead ends: 23 [2021-11-03 03:55:42,002 INFO L226 Difference]: Without dead ends: 21 [2021-11-03 03:55:42,003 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=79, Invalid=194, Unknown=3, NotChecked=30, Total=306 [2021-11-03 03:55:42,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-03 03:55:42,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-03 03:55:42,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.0) internal successors, (20), 20 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:42,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2021-11-03 03:55:42,009 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 15 [2021-11-03 03:55:42,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:55:42,009 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2021-11-03 03:55:42,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:42,010 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2021-11-03 03:55:42,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-03 03:55:42,011 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:55:42,011 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:55:42,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:55:42,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:55:42,218 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 03:55:42,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:55:42,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1369496130, now seen corresponding path program 1 times [2021-11-03 03:55:42,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:55:42,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605936727] [2021-11-03 03:55:42,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:55:42,220 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:55:42,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:55:42,228 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:55:42,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:55:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:55:42,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-03 03:55:42,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:55:42,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2021-11-03 03:55:42,954 INFO L354 Elim1Store]: treesize reduction 47, result has 25.4 percent of original size [2021-11-03 03:55:42,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 74 treesize of output 78 [2021-11-03 03:55:42,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 75 [2021-11-03 03:55:43,241 INFO L354 Elim1Store]: treesize reduction 213, result has 13.4 percent of original size [2021-11-03 03:55:43,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 128 treesize of output 124 [2021-11-03 03:55:43,323 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-03 03:55:43,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 117 treesize of output 125 [2021-11-03 03:55:43,562 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-03 03:55:43,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 113 treesize of output 73 [2021-11-03 03:55:43,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:55:43,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:55:47,454 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testThree_~#f1~2.offset| (_ BitVec 32)) (|ULTIMATE.start_testThree_~#f2~2.offset| (_ BitVec 32)) (|v_ULTIMATE.start_returnsField_~#c~0.base_23| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_24| (_ BitVec 32)) (|v_ULTIMATE.start_testThree_#t~mem22_9| (_ BitVec 32))) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_testThree_~#f1~2.base| (store (select |c_#memory_int| |c_ULTIMATE.start_testThree_~#f1~2.base|) |ULTIMATE.start_testThree_~#f1~2.offset| |v_skolemized_q#valueAsBitvector_24|)))) (let ((.cse1 (store (store (store (select .cse3 |v_ULTIMATE.start_returnsField_~#c~0.base_23|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_returnsField_~#c~0.base_23|))))) (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_24|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_24|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_24|)) |c_ULTIMATE.start_returnsField_#res|)) (not (= (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) |v_ULTIMATE.start_testThree_#t~mem22_9|) ((_ extract 30 23) |v_ULTIMATE.start_testThree_#t~mem22_9|) ((_ extract 22 0) |v_ULTIMATE.start_testThree_#t~mem22_9|)))) (not (= |v_ULTIMATE.start_testThree_#t~mem22_9| (select (select (let ((.cse2 (store .cse3 |v_ULTIMATE.start_returnsField_~#c~0.base_23| .cse1))) (store .cse2 |c_ULTIMATE.start_testThree_~#f2~2.base| (store (select .cse2 |c_ULTIMATE.start_testThree_~#f2~2.base|) |ULTIMATE.start_testThree_~#f2~2.offset| |v_ULTIMATE.start_testThree_#t~mem22_9|))) |c_ULTIMATE.start_testThree_~#f1~2.base|) |ULTIMATE.start_testThree_~#f1~2.offset|))))))) is different from false [2021-11-03 03:55:47,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:55:47,527 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:55:47,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605936727] [2021-11-03 03:55:47,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605936727] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:55:47,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:55:47,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2021-11-03 03:55:47,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573772850] [2021-11-03 03:55:47,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 03:55:47,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:55:47,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 03:55:47,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=41, Unknown=1, NotChecked=12, Total=72 [2021-11-03 03:55:47,530 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:54,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:55:54,771 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2021-11-03 03:55:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 03:55:54,771 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-03 03:55:54,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:55:54,772 INFO L225 Difference]: With dead ends: 21 [2021-11-03 03:55:54,772 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 03:55:54,772 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=29, Invalid=64, Unknown=1, NotChecked=16, Total=110 [2021-11-03 03:55:54,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 03:55:54,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 03:55:54,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:54,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 03:55:54,773 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-11-03 03:55:54,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:55:54,773 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 03:55:54,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:54,774 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 03:55:54,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 03:55:54,776 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:55:54,777 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:55:54,777 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:55:54,777 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:55:54,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 03:55:54,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:55:54,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-03 03:55:54,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:55,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:55,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:55,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:55,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:55,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:55,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:55,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:55,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:55,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:55,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:55,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:56:44,456 WARN L207 SmtUtils]: Spent 48.72 s on a formula simplification. DAG size of input: 159 DAG size of output: 147 [2021-11-03 03:56:44,601 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 156) no Hoare annotation was computed. [2021-11-03 03:56:44,601 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-03 03:56:44,601 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-03 03:56:44,601 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-03 03:56:44,602 INFO L857 garLoopResultBuilder]: For program point L156(line 156) no Hoare annotation was computed. [2021-11-03 03:56:44,602 INFO L857 garLoopResultBuilder]: For program point L156-1(line 156) no Hoare annotation was computed. [2021-11-03 03:56:44,602 INFO L857 garLoopResultBuilder]: For program point L156-3(line 156) no Hoare annotation was computed. [2021-11-03 03:56:44,602 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 144) no Hoare annotation was computed. [2021-11-03 03:56:44,602 INFO L857 garLoopResultBuilder]: For program point L144(line 144) no Hoare annotation was computed. [2021-11-03 03:56:44,603 INFO L857 garLoopResultBuilder]: For program point L144-1(line 144) no Hoare annotation was computed. [2021-11-03 03:56:44,603 INFO L857 garLoopResultBuilder]: For program point L144-3(line 144) no Hoare annotation was computed. [2021-11-03 03:56:44,603 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-03 03:56:44,603 INFO L857 garLoopResultBuilder]: For program point L173-1(line 173) no Hoare annotation was computed. [2021-11-03 03:56:44,603 INFO L857 garLoopResultBuilder]: For program point L173-3(line 173) no Hoare annotation was computed. [2021-11-03 03:56:44,604 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-11-03 03:56:44,604 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-03 03:56:44,604 INFO L857 garLoopResultBuilder]: For program point L161-1(line 161) no Hoare annotation was computed. [2021-11-03 03:56:44,604 INFO L857 garLoopResultBuilder]: For program point L161-3(line 161) no Hoare annotation was computed. [2021-11-03 03:56:44,605 INFO L853 garLoopResultBuilder]: At program point L124(lines 117 125) the Hoare annotation is: (and (= (_ bv0 1) (bvadd (bvneg (bvneg (select |#valid| |ULTIMATE.start_testTwo_~#f1~1.base|))) (_ bv1 1))) (exists ((|v_ULTIMATE.start_returnsField_~#c~0.base_17| (_ BitVec 32))) (let ((.cse1 (select |#memory_int| |v_ULTIMATE.start_returnsField_~#c~0.base_17|))) (let ((.cse0 (select .cse1 (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) |ULTIMATE.start_returnsField_#res|) (= (select .cse1 (_ bv8 32)) (_ bv0 32)) (= (_ bv0 32) .cse0) (= (_ bv0 1) (select |#valid| |v_ULTIMATE.start_returnsField_~#c~0.base_17|)) (= (select .cse1 (_ bv4 32)) (_ bv0 32)))))) (= |ULTIMATE.start_testTwo_~#f1~1.offset| (_ bv0 32)) (exists ((v_arrayElimCell_34 (_ BitVec 1))) (let ((.cse2 (bvneg v_arrayElimCell_34))) (and (= (_ bv0 1) (bvadd (bvneg (bvneg .cse2)) (_ bv1 1))) (= (_ bv0 1) (bvadd .cse2 (select |#valid| |ULTIMATE.start_testTwo_~#f2~1.base|)))))) (not (= (select (select |#memory_int| |ULTIMATE.start_testTwo_~#f2~1.base|) |ULTIMATE.start_testTwo_~#f2~1.offset|) (select (select |#memory_int| |ULTIMATE.start_testTwo_~#f1~1.base|) |ULTIMATE.start_testTwo_~#f1~1.offset|))) (= |ULTIMATE.start_testTwo_~#f2~1.offset| (_ bv0 32))) [2021-11-03 03:56:44,605 INFO L853 garLoopResultBuilder]: At program point L124-1(lines 117 125) the Hoare annotation is: (and (= (_ bv0 1) (bvadd (bvneg (select |#valid| |ULTIMATE.start_testTwo_~#f2~1.base|)) (_ bv1 1))) (= |ULTIMATE.start_testTwo_~#f1~1.offset| (_ bv0 32)) (exists ((|v_ULTIMATE.start_returnsField_~#c~0.base_18| (_ BitVec 32))) (let ((.cse0 (select |#memory_int| |v_ULTIMATE.start_returnsField_~#c~0.base_18|))) (let ((.cse1 (select .cse0 (_ bv0 32)))) (and (not (= |v_ULTIMATE.start_returnsField_~#c~0.base_18| |ULTIMATE.start_testTwo_~#f2~1.base|)) (= (select .cse0 (_ bv4 32)) (_ bv0 32)) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) |ULTIMATE.start_returnsField_#res|) (= (_ bv0 32) (select .cse0 (_ bv8 32))) (= (_ bv1 32) .cse1))))) (not (= |ULTIMATE.start_testTwo_~#f1~1.base| |ULTIMATE.start_testTwo_~#f2~1.base|)) (= (let ((.cse2 (select (select |#memory_int| |ULTIMATE.start_testTwo_~#f1~1.base|) |ULTIMATE.start_testTwo_~#f1~1.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= |ULTIMATE.start_testTwo_~#f2~1.offset| (_ bv0 32)) (exists ((|v_ULTIMATE.start_returnsStructure_~#c~1.base_27| (_ BitVec 32))) (= (_ bv0 1) (select |#valid| |v_ULTIMATE.start_returnsStructure_~#c~1.base_27|))) (= (_ bv0 1) (bvadd (bvneg (select |#valid| |ULTIMATE.start_testTwo_~#f1~1.base|)) (_ bv1 1)))) [2021-11-03 03:56:44,605 INFO L853 garLoopResultBuilder]: At program point L124-2(lines 117 125) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_returnsField_~#c~0.base_22| (_ BitVec 32))) (let ((.cse1 (select |#memory_int| |v_ULTIMATE.start_returnsField_~#c~0.base_22|))) (let ((.cse0 (select .cse1 (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) |ULTIMATE.start_returnsField_#res|) (= (_ bv0 1) (select |#valid| |v_ULTIMATE.start_returnsField_~#c~0.base_22|)) (= (select .cse1 (_ bv4 32)) (_ bv0 32)) (= .cse0 (_ bv0 32)) (= (select .cse1 (_ bv8 32)) (_ bv0 32)))))) (forall ((|ULTIMATE.start_testThree_~#f1~2.offset| (_ BitVec 32)) (|ULTIMATE.start_testThree_~#f2~2.offset| (_ BitVec 32)) (|v_ULTIMATE.start_returnsField_~#c~0.base_23| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_24| (_ BitVec 32)) (|v_ULTIMATE.start_testThree_#t~mem22_9| (_ BitVec 32))) (let ((.cse5 (store |#memory_int| |ULTIMATE.start_testThree_~#f1~2.base| (store (select |#memory_int| |ULTIMATE.start_testThree_~#f1~2.base|) |ULTIMATE.start_testThree_~#f1~2.offset| |v_skolemized_q#valueAsBitvector_24|)))) (let ((.cse3 (store (store (store (select .cse5 |v_ULTIMATE.start_returnsField_~#c~0.base_23|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |#valid| |v_ULTIMATE.start_returnsField_~#c~0.base_23|))))) (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_24|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_24|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_24|)) |ULTIMATE.start_returnsField_#res|)) (not (= (let ((.cse2 (select .cse3 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp ((_ extract 31 31) |v_ULTIMATE.start_testThree_#t~mem22_9|) ((_ extract 30 23) |v_ULTIMATE.start_testThree_#t~mem22_9|) ((_ extract 22 0) |v_ULTIMATE.start_testThree_#t~mem22_9|)))) (not (= |v_ULTIMATE.start_testThree_#t~mem22_9| (select (select (let ((.cse4 (store .cse5 |v_ULTIMATE.start_returnsField_~#c~0.base_23| .cse3))) (store .cse4 |ULTIMATE.start_testThree_~#f2~2.base| (store (select .cse4 |ULTIMATE.start_testThree_~#f2~2.base|) |ULTIMATE.start_testThree_~#f2~2.offset| |v_ULTIMATE.start_testThree_#t~mem22_9|))) |ULTIMATE.start_testThree_~#f1~2.base|) |ULTIMATE.start_testThree_~#f1~2.offset|))))))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |#valid| |ULTIMATE.start_testThree_~#f2~2.base|)))) [2021-11-03 03:56:44,606 INFO L853 garLoopResultBuilder]: At program point L124-3(lines 117 125) the Hoare annotation is: (and (= (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_testThree_~#f1~2.base|) |ULTIMATE.start_testThree_~#f1~2.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (exists ((|v_ULTIMATE.start_returnsField_~#c~0.base_23| (_ BitVec 32))) (let ((.cse1 (select |#memory_int| |v_ULTIMATE.start_returnsField_~#c~0.base_23|))) (let ((.cse2 (select .cse1 (_ bv0 32)))) (and (= (select .cse1 (_ bv4 32)) (_ bv0 32)) (= .cse2 (_ bv1 32)) (= (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)) |ULTIMATE.start_returnsField_#res|) (not (= |ULTIMATE.start_testThree_~#f1~2.base| |v_ULTIMATE.start_returnsField_~#c~0.base_23|)) (not (= |v_ULTIMATE.start_returnsField_~#c~0.base_23| |ULTIMATE.start_testThree_~#f2~2.base|)) (= (select .cse1 (_ bv8 32)) (_ bv0 32)))))) (not (= |ULTIMATE.start_testThree_~#f1~2.base| |ULTIMATE.start_testThree_~#f2~2.base|))) [2021-11-03 03:56:44,606 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2021-11-03 03:56:44,606 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 161) no Hoare annotation was computed. [2021-11-03 03:56:44,607 INFO L860 garLoopResultBuilder]: At program point L183(lines 178 184) the Hoare annotation is: true [2021-11-03 03:56:44,607 INFO L860 garLoopResultBuilder]: At program point L146(lines 138 147) the Hoare annotation is: true [2021-11-03 03:56:44,607 INFO L860 garLoopResultBuilder]: At program point L175(lines 167 176) the Hoare annotation is: true [2021-11-03 03:56:44,607 INFO L853 garLoopResultBuilder]: At program point L134(lines 127 135) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_returnsStructure_~#c~1.base_17| (_ BitVec 32))) (let ((.cse0 (select |#memory_int| |v_ULTIMATE.start_returnsStructure_~#c~1.base_17|))) (let ((.cse1 (select .cse0 (_ bv0 32)))) (and (= (select .cse0 (_ bv8 32)) (_ bv0 32)) (= .cse1 (_ bv0 32)) (= |ULTIMATE.start_returnsStructure_#res.f| (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) (= (select .cse0 (_ bv4 32)) (_ bv0 32)) (= (_ bv0 1) (select |#valid| |v_ULTIMATE.start_returnsStructure_~#c~1.base_17|)))))) (= (_ bv0 1) (bvadd (bvneg (select |#valid| |ULTIMATE.start_testOne_~#f2~0.base|)) (_ bv1 1))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |#valid| |ULTIMATE.start_testOne_~#f1~0.base|))) (not (= |ULTIMATE.start_testOne_~#f2~0.base| |ULTIMATE.start_testOne_~#f1~0.base|))) [2021-11-03 03:56:44,608 INFO L853 garLoopResultBuilder]: At program point L134-1(lines 127 135) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_returnsStructure_~#c~1.base_18| (_ BitVec 32))) (let ((.cse1 (select |#memory_int| |v_ULTIMATE.start_returnsStructure_~#c~1.base_18|))) (let ((.cse0 (select .cse1 (_ bv0 32)))) (and (not (= |ULTIMATE.start_testOne_~#f2~0.base| |v_ULTIMATE.start_returnsStructure_~#c~1.base_18|)) (= .cse0 |ULTIMATE.start_returnsStructure_#res.ieee.negative|) (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) |ULTIMATE.start_returnsStructure_#res.f|) (= (select .cse1 (_ bv4 32)) (_ bv0 32)) (not (= |ULTIMATE.start_testOne_~#f1~0.base| |v_ULTIMATE.start_returnsStructure_~#c~1.base_18|)) (= .cse0 (_ bv1 32)) (= (select .cse1 (_ bv8 32)) (_ bv0 32)))))) (not (= |ULTIMATE.start_testOne_~#f2~0.base| |ULTIMATE.start_testOne_~#f1~0.base|)) (= (let ((.cse2 (select (select |#memory_int| |ULTIMATE.start_testOne_~#f1~0.base|) |ULTIMATE.start_testOne_~#f1~0.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) [2021-11-03 03:56:44,608 INFO L853 garLoopResultBuilder]: At program point L134-2(lines 127 135) the Hoare annotation is: (and (= (_ bv0 1) (bvadd (bvneg (select |#valid| |ULTIMATE.start_testTwo_~#f2~1.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_testTwo_#t~mem18_10| (_ BitVec 32)) (|v_ULTIMATE.start_returnsField_~#c~0.base_17| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_21| (_ BitVec 32)) (|v_ULTIMATE.start_returnsField_~#c~0.base_18| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |#memory_int| |v_ULTIMATE.start_returnsField_~#c~0.base_17|) (_ bv0 32) (_ bv0 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (let ((.cse5 (let ((.cse6 (store |#memory_int| |v_ULTIMATE.start_returnsField_~#c~0.base_17| .cse1))) (store .cse6 |ULTIMATE.start_testTwo_~#f1~1.base| (store (select .cse6 |ULTIMATE.start_testTwo_~#f1~1.base|) |ULTIMATE.start_testTwo_~#f1~1.offset| |v_skolemized_q#valueAsBitvector_21|))))) (let ((.cse3 (store (store (store (select .cse5 |v_ULTIMATE.start_returnsField_~#c~0.base_18|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_21|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_21|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_21|)) (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) (not (= (_ bv0 1) (select (store |#valid| |v_ULTIMATE.start_returnsField_~#c~0.base_17| (_ bv0 1)) |v_ULTIMATE.start_returnsField_~#c~0.base_18|))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem18_10|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem18_10|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem18_10|)) (let ((.cse2 (select .cse3 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (not (= (select (select (let ((.cse4 (store .cse5 |v_ULTIMATE.start_returnsField_~#c~0.base_18| .cse3))) (store .cse4 |ULTIMATE.start_testTwo_~#f2~1.base| (store (select .cse4 |ULTIMATE.start_testTwo_~#f2~1.base|) |ULTIMATE.start_testTwo_~#f2~1.offset| |v_ULTIMATE.start_testTwo_#t~mem18_10|))) |ULTIMATE.start_testTwo_~#f1~1.base|) |ULTIMATE.start_testTwo_~#f1~1.offset|) |v_ULTIMATE.start_testTwo_#t~mem18_10|)) (not (= (_ bv0 1) (select |#valid| |v_ULTIMATE.start_returnsField_~#c~0.base_17|)))))))) (= |ULTIMATE.start_testTwo_~#f1~1.offset| (_ bv0 32)) (= |ULTIMATE.start_testTwo_~#f2~1.offset| (_ bv0 32)) (exists ((|v_ULTIMATE.start_returnsStructure_~#c~1.base_22| (_ BitVec 32))) (let ((.cse8 (select |#memory_int| |v_ULTIMATE.start_returnsStructure_~#c~1.base_22|))) (let ((.cse7 (select .cse8 (_ bv0 32)))) (and (= |ULTIMATE.start_returnsStructure_#res.f| (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))) (= (_ bv0 1) (select |#valid| |v_ULTIMATE.start_returnsStructure_~#c~1.base_22|)) (= (_ bv0 32) (select .cse8 (_ bv4 32))) (= .cse7 (_ bv0 32)) (= (select .cse8 (_ bv8 32)) (_ bv0 32)))))) (forall ((|ULTIMATE.start_testTwo_~#f2~1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_returnsStructure_#res.ieee.exponent_19| (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem14_9| (_ BitVec 32)) (|v_ULTIMATE.start_returnsStructure_~#c~1.base_23| (_ BitVec 32)) (|ULTIMATE.start_returnsStructure_#res.ieee.mantissa| (_ BitVec 32)) (|ULTIMATE.start_returnsStructure_#res.ieee.negative| (_ BitVec 32)) (|ULTIMATE.start_returnsStructure_#res.ieee.exponent| (_ BitVec 32)) (|ULTIMATE.start_testTwo_~#f1~1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_returnsStructure_#res.ieee.mantissa_19| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_19| (_ BitVec 32))) (let ((.cse11 (store |#memory_int| |ULTIMATE.start_testTwo_~#f1~1.base| (store (store (store (store (select |#memory_int| |ULTIMATE.start_testTwo_~#f1~1.base|) |ULTIMATE.start_testTwo_~#f1~1.offset| |ULTIMATE.start_returnsStructure_#res.ieee.negative|) (bvadd (_ bv4 32) |ULTIMATE.start_testTwo_~#f1~1.offset|) |ULTIMATE.start_returnsStructure_#res.ieee.exponent|) (bvadd (_ bv8 32) |ULTIMATE.start_testTwo_~#f1~1.offset|) |ULTIMATE.start_returnsStructure_#res.ieee.mantissa|) |ULTIMATE.start_testTwo_~#f1~1.offset| |v_skolemized_q#valueAsBitvector_19|)))) (let ((.cse12 (store (store (store (select .cse11 |v_ULTIMATE.start_returnsStructure_~#c~1.base_23|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (let ((.cse10 (select .cse12 (_ bv0 32)))) (or (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_19|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_19|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_19|)) |ULTIMATE.start_returnsStructure_#res.f|)) (not (= (_ bv0 1) (select |#valid| |v_ULTIMATE.start_returnsStructure_~#c~1.base_23|))) (not (= |v_ULTIMATE.start_testTwo_#t~mem14_9| (select (select (let ((.cse9 (store .cse11 |v_ULTIMATE.start_returnsStructure_~#c~1.base_23| .cse12))) (store .cse9 |ULTIMATE.start_testTwo_~#f2~1.base| (store (store (store (store (select .cse9 |ULTIMATE.start_testTwo_~#f2~1.base|) |ULTIMATE.start_testTwo_~#f2~1.offset| .cse10) (bvadd (_ bv4 32) |ULTIMATE.start_testTwo_~#f2~1.offset|) |v_ULTIMATE.start_returnsStructure_#res.ieee.exponent_19|) (bvadd (_ bv8 32) |ULTIMATE.start_testTwo_~#f2~1.offset|) |v_ULTIMATE.start_returnsStructure_#res.ieee.mantissa_19|) |ULTIMATE.start_testTwo_~#f2~1.offset| |v_ULTIMATE.start_testTwo_#t~mem14_9|))) |ULTIMATE.start_testTwo_~#f1~1.base|) |ULTIMATE.start_testTwo_~#f1~1.offset|))) (not (= (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10)) (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem14_9|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem14_9|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem14_9|)))))))))) [2021-11-03 03:56:44,609 INFO L853 garLoopResultBuilder]: At program point L134-3(lines 127 135) the Hoare annotation is: (and (= (_ bv0 1) (bvadd (bvneg (select |#valid| |ULTIMATE.start_testTwo_~#f2~1.base|)) (_ bv1 1))) (= |ULTIMATE.start_testTwo_~#f1~1.offset| (_ bv0 32)) (not (= |ULTIMATE.start_testTwo_~#f1~1.base| |ULTIMATE.start_testTwo_~#f2~1.base|)) (= (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_testTwo_~#f1~1.base|) |ULTIMATE.start_testTwo_~#f1~1.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= |ULTIMATE.start_testTwo_~#f2~1.offset| (_ bv0 32)) (exists ((|v_ULTIMATE.start_returnsStructure_~#c~1.base_27| (_ BitVec 32))) (= (_ bv0 1) (select |#valid| |v_ULTIMATE.start_returnsStructure_~#c~1.base_27|))) (exists ((|v_ULTIMATE.start_returnsStructure_~#c~1.base_23| (_ BitVec 32))) (let ((.cse2 (select |#memory_int| |v_ULTIMATE.start_returnsStructure_~#c~1.base_23|))) (let ((.cse1 (select .cse2 (_ bv0 32)))) (and (= (_ bv1 32) .cse1) (= (select .cse2 (_ bv8 32)) (_ bv0 32)) (= (select .cse2 (_ bv4 32)) (_ bv0 32)) (not (= |ULTIMATE.start_testTwo_~#f2~1.base| |v_ULTIMATE.start_returnsStructure_~#c~1.base_23|)) (not (= |ULTIMATE.start_testTwo_~#f1~1.base| |v_ULTIMATE.start_returnsStructure_~#c~1.base_23|)) (= |ULTIMATE.start_returnsStructure_#res.ieee.negative| .cse1) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) |ULTIMATE.start_returnsStructure_#res.f|))))) (= (_ bv0 1) (bvadd (bvneg (select |#valid| |ULTIMATE.start_testTwo_~#f1~1.base|)) (_ bv1 1)))) [2021-11-03 03:56:44,609 INFO L853 garLoopResultBuilder]: At program point L163(lines 150 164) the Hoare annotation is: (= (fp (_ bv0 1) (_ bv0 8) (_ bv1 23)) |ULTIMATE.start_returnsField_#res|) [2021-11-03 03:56:44,613 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-03 03:56:44,614 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 03:56:44,628 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 1) (_ BitVec 1)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:56:44,632 INFO L168 Benchmark]: Toolchain (without parser) took 126088.01 ms. Allocated memory was 65.0 MB in the beginning and 176.2 MB in the end (delta: 111.1 MB). Free memory was 45.5 MB in the beginning and 128.0 MB in the end (delta: -82.5 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:44,633 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 65.0 MB. Free memory is still 46.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:56:44,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.53 ms. Allocated memory is still 65.0 MB. Free memory was 45.4 MB in the beginning and 33.2 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:44,634 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.36 ms. Allocated memory is still 65.0 MB. Free memory was 33.2 MB in the beginning and 48.0 MB in the end (delta: -14.8 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:44,634 INFO L168 Benchmark]: Boogie Preprocessor took 86.42 ms. Allocated memory is still 65.0 MB. Free memory was 48.0 MB in the beginning and 45.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:44,635 INFO L168 Benchmark]: RCFGBuilder took 708.36 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 45.7 MB in the beginning and 58.0 MB in the end (delta: -12.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:44,636 INFO L168 Benchmark]: TraceAbstraction took 124911.44 ms. Allocated memory was 81.8 MB in the beginning and 176.2 MB in the end (delta: 94.4 MB). Free memory was 57.6 MB in the beginning and 128.0 MB in the end (delta: -70.3 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:44,638 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 65.0 MB. Free memory is still 46.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 298.53 ms. Allocated memory is still 65.0 MB. Free memory was 45.4 MB in the beginning and 33.2 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.36 ms. Allocated memory is still 65.0 MB. Free memory was 33.2 MB in the beginning and 48.0 MB in the end (delta: -14.8 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.42 ms. Allocated memory is still 65.0 MB. Free memory was 48.0 MB in the beginning and 45.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 708.36 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 45.7 MB in the beginning and 58.0 MB in the end (delta: -12.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 124911.44 ms. Allocated memory was 81.8 MB in the beginning and 176.2 MB in the end (delta: 94.4 MB). Free memory was 57.6 MB in the beginning and 128.0 MB in the end (delta: -70.3 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 144]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 156]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 161]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 173]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 124.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 23.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 49.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 5 SDslu, 206 SDs, 0 SdLazy, 216 SolverSat, 24 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 9.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 63 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 4 IntricatePredicates, 3 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 43.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 27, 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, 12 LocationsWithAnnotation, 12 PreInvPairs, 22 NumberOfFragments, 1593 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 12 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 49.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 49.4s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 24 QuantifiedInterpolants, 2988 SizeOfPredicates, 93 NumberOfNonLiveVariables, 436 ConjunctsInSsa, 111 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: ~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23) == \result - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 1) (_ BitVec 1)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 1) (_ BitVec 1)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-03 03:56:44,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbdf3fd3-055c-494a-babe-285dbef18e34/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 1) (_ BitVec 1)) not yet implemented, please contact Matthias