./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG --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 7a3d3bb15f1283b96fbc9519b4946e30f904b241ec984b139ceb6db5a438fc07 ...................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG --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 7a3d3bb15f1283b96fbc9519b4946e30f904b241ec984b139ceb6db5a438fc07 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:22:53,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:22:53,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:22:53,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:22:53,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:22:53,759 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:22:53,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:22:53,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:22:53,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:22:53,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:22:53,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:22:53,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:22:53,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:22:53,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:22:53,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:22:53,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:22:53,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:22:53,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:22:53,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:22:53,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:22:53,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:22:53,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:22:53,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:22:53,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:22:53,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:22:53,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:22:53,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:22:53,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:22:53,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:22:53,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:22:53,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:22:53,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:22:53,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:22:53,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:22:53,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:22:53,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:22:53,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:22:53,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:22:53,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:22:53,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:22:53,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:22:53,855 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:22:53,911 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:22:53,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:22:53,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:22:53,913 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:22:53,914 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:22:53,914 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:22:53,914 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:22:53,914 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:22:53,915 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:22:53,915 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:22:53,916 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:22:53,916 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:22:53,917 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:22:53,917 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:22:53,917 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:22:53,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:22:53,918 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:22:53,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:22:53,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:22:53,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:22:53,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:22:53,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:22:53,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:22:53,920 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:22:53,920 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:22:53,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:22:53,921 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:22:53,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:22:53,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:22:53,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:22:53,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:22:53,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:22:53,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:22:53,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:22:53,924 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:22:53,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:22:53,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:22:53,925 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:22:53,925 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:22:53,925 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_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a3d3bb15f1283b96fbc9519b4946e30f904b241ec984b139ceb6db5a438fc07 [2021-10-29 05:22:54,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:22:54,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:22:54,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:22:54,390 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:22:54,392 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:22:54,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2021-10-29 05:22:54,502 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/data/aa41d75f7/db6d2ce9adb34e398db8393c8c4168f2/FLAGc19319f14 [2021-10-29 05:22:55,071 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:22:55,072 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2021-10-29 05:22:55,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/data/aa41d75f7/db6d2ce9adb34e398db8393c8c4168f2/FLAGc19319f14 [2021-10-29 05:22:55,380 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/data/aa41d75f7/db6d2ce9adb34e398db8393c8c4168f2 [2021-10-29 05:22:55,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:22:55,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:22:55,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:22:55,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:22:55,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:22:55,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:22:55" (1/1) ... [2021-10-29 05:22:55,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35d3ffc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:55, skipping insertion in model container [2021-10-29 05:22:55,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:22:55" (1/1) ... [2021-10-29 05:22:55,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:22:55,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:22:55,720 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_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c[4118,4131] [2021-10-29 05:22:55,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:22:55,735 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:22:55,781 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_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c[4118,4131] [2021-10-29 05:22:55,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:22:55,799 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:22:55,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:55 WrapperNode [2021-10-29 05:22:55,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:22:55,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:22:55,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:22:55,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:22:55,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:55" (1/1) ... [2021-10-29 05:22:55,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:55" (1/1) ... [2021-10-29 05:22:55,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:22:55,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:22:55,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:22:55,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:22:55,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:55" (1/1) ... [2021-10-29 05:22:55,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:55" (1/1) ... [2021-10-29 05:22:55,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:55" (1/1) ... [2021-10-29 05:22:55,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:55" (1/1) ... [2021-10-29 05:22:55,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:55" (1/1) ... [2021-10-29 05:22:55,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:55" (1/1) ... [2021-10-29 05:22:55,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:55" (1/1) ... [2021-10-29 05:22:55,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:22:55,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:22:55,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:22:55,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:22:55,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:55" (1/1) ... [2021-10-29 05:22:55,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:22:55,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:22:55,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:22:55,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:22:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:22:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:22:56,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-29 05:22:56,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 05:22:56,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-29 05:22:56,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:22:56,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:22:56,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 05:22:56,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:22:56,736 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:22:56,736 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-29 05:22:56,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:22:56 BoogieIcfgContainer [2021-10-29 05:22:56,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:22:56,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:22:56,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:22:56,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:22:56,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:22:55" (1/3) ... [2021-10-29 05:22:56,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1931c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:22:56, skipping insertion in model container [2021-10-29 05:22:56,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:55" (2/3) ... [2021-10-29 05:22:56,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1931c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:22:56, skipping insertion in model container [2021-10-29 05:22:56,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:22:56" (3/3) ... [2021-10-29 05:22:56,766 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b.c [2021-10-29 05:22:56,774 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:22:56,786 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:22:56,880 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:22:56,904 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 [2021-10-29 05:22:56,905 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:22:56,935 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.6875) internal successors, (54), 33 states have internal predecessors, (54), 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) [2021-10-29 05:22:56,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 05:22:56,945 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:56,946 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:22:56,946 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:22:56,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:56,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1936369677, now seen corresponding path program 1 times [2021-10-29 05:22:56,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:22:56,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542405209] [2021-10-29 05:22:56,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:56,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:22:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:57,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:57,153 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:22:57,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542405209] [2021-10-29 05:22:57,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542405209] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:57,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:57,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:22:57,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827099221] [2021-10-29 05:22:57,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:22:57,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:22:57,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:22:57,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:22:57,183 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.6875) internal successors, (54), 33 states have internal predecessors, (54), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-29 05:22:57,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:57,206 INFO L93 Difference]: Finished difference Result 67 states and 107 transitions. [2021-10-29 05:22:57,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:22:57,208 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-10-29 05:22:57,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:57,218 INFO L225 Difference]: With dead ends: 67 [2021-10-29 05:22:57,218 INFO L226 Difference]: Without dead ends: 32 [2021-10-29 05:22:57,221 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:22:57,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-29 05:22:57,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-29 05:22:57,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 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) [2021-10-29 05:22:57,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2021-10-29 05:22:57,256 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 7 [2021-10-29 05:22:57,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:57,257 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2021-10-29 05:22:57,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-29 05:22:57,257 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2021-10-29 05:22:57,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 05:22:57,258 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:57,258 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:22:57,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:22:57,259 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:22:57,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:57,260 INFO L85 PathProgramCache]: Analyzing trace with hash 2124741948, now seen corresponding path program 1 times [2021-10-29 05:22:57,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:22:57,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659782697] [2021-10-29 05:22:57,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:57,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:22:57,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:22:57,321 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:22:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:22:57,395 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:22:57,396 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:22:57,398 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:22:57,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:22:57,405 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 05:22:57,409 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:22:57,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:22:57 BoogieIcfgContainer [2021-10-29 05:22:57,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:22:57,446 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:22:57,446 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:22:57,447 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:22:57,447 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:22:56" (3/4) ... [2021-10-29 05:22:57,451 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:22:57,451 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:22:57,454 INFO L168 Benchmark]: Toolchain (without parser) took 2068.18 ms. Allocated memory is still 123.7 MB. Free memory was 87.8 MB in the beginning and 45.4 MB in the end (delta: 42.4 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:57,455 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory was 58.9 MB in the beginning and 58.8 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:22:57,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.13 ms. Allocated memory is still 123.7 MB. Free memory was 87.6 MB in the beginning and 95.8 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:57,456 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.22 ms. Allocated memory is still 123.7 MB. Free memory was 95.8 MB in the beginning and 93.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:57,457 INFO L168 Benchmark]: Boogie Preprocessor took 45.48 ms. Allocated memory is still 123.7 MB. Free memory was 93.7 MB in the beginning and 92.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:22:57,458 INFO L168 Benchmark]: RCFGBuilder took 836.10 ms. Allocated memory is still 123.7 MB. Free memory was 92.1 MB in the beginning and 71.5 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:57,459 INFO L168 Benchmark]: TraceAbstraction took 703.37 ms. Allocated memory is still 123.7 MB. Free memory was 71.2 MB in the beginning and 45.4 MB in the end (delta: 25.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:57,459 INFO L168 Benchmark]: Witness Printer took 5.20 ms. Allocated memory is still 123.7 MB. Free memory is still 45.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:22:57,463 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory was 58.9 MB in the beginning and 58.8 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 414.13 ms. Allocated memory is still 123.7 MB. Free memory was 87.6 MB in the beginning and 95.8 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.22 ms. Allocated memory is still 123.7 MB. Free memory was 95.8 MB in the beginning and 93.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.48 ms. Allocated memory is still 123.7 MB. Free memory was 93.7 MB in the beginning and 92.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 836.10 ms. Allocated memory is still 123.7 MB. Free memory was 92.1 MB in the beginning and 71.5 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 703.37 ms. Allocated memory is still 123.7 MB. Free memory was 71.2 MB in the beginning and 45.4 MB in the end (delta: 25.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Witness Printer took 5.20 ms. Allocated memory is still 123.7 MB. Free memory is still 45.4 MB. There was no memory consumed. 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 - UnprovableResult [Line: 161]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 147, overapproximation of someBinaryArithmeticFLOAToperation at line 119, overapproximation of bitwiseAnd at line 118. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; [L100-L103] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L105] static const float zero = 0.0; [L156] float x = -1.0f / 0.0f; [L108] float y, z; [L109] __int32_t i, k, hx; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L117] k = 0 VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L118] COND TRUE ((hx & 0x7fffffff) == 0) [L119] return -two25_log10 / zero; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L157] float res = __ieee754_log10f(x); [L147] return x != x; [L160] COND TRUE !isnan_float(res) [L161] reach_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-29 05:22:57,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:23:00,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:23:00,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:23:00,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:23:00,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:23:00,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:23:00,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:23:00,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:23:00,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:23:00,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:23:00,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:23:00,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:23:00,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:23:00,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:23:00,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:23:00,728 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:23:00,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:23:00,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:23:00,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:23:00,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:23:00,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:23:00,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:23:00,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:23:00,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:23:00,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:23:00,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:23:00,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:23:00,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:23:00,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:23:00,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:23:00,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:23:00,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:23:00,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:23:00,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:23:00,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:23:00,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:23:00,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:23:00,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:23:00,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:23:00,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:23:00,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:23:00,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:23:00,843 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:23:00,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:23:00,845 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:23:00,846 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:23:00,846 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:23:00,846 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:23:00,847 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:23:00,847 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:23:00,847 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:23:00,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:23:00,851 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:23:00,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:23:00,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:23:00,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:23:00,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:23:00,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:23:00,853 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:23:00,853 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:23:00,853 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:23:00,854 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:23:00,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:23:00,854 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:23:00,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:23:00,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:23:00,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:23:00,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:23:00,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:23:00,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:23:00,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:23:00,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:23:00,857 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:23:00,857 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:23:00,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:23:00,858 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:23:00,858 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:23:00,859 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_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a3d3bb15f1283b96fbc9519b4946e30f904b241ec984b139ceb6db5a438fc07 [2021-10-29 05:23:01,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:23:01,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:23:01,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:23:01,391 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:23:01,392 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:23:01,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2021-10-29 05:23:01,495 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/data/414626cc4/5ba20c000d44449881c74ae7b36e3566/FLAGb9f154537 [2021-10-29 05:23:02,160 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:23:02,161 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2021-10-29 05:23:02,174 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/data/414626cc4/5ba20c000d44449881c74ae7b36e3566/FLAGb9f154537 [2021-10-29 05:23:02,483 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/data/414626cc4/5ba20c000d44449881c74ae7b36e3566 [2021-10-29 05:23:02,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:23:02,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:23:02,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:23:02,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:23:02,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:23:02,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:23:02" (1/1) ... [2021-10-29 05:23:02,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d8f252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:02, skipping insertion in model container [2021-10-29 05:23:02,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:23:02" (1/1) ... [2021-10-29 05:23:02,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:23:02,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:23:02,900 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_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c[4118,4131] [2021-10-29 05:23:02,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:23:02,975 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:23:03,029 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_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c[4118,4131] [2021-10-29 05:23:03,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:23:03,046 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:23:03,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:03 WrapperNode [2021-10-29 05:23:03,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:23:03,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:23:03,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:23:03,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:23:03,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:03" (1/1) ... [2021-10-29 05:23:03,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:03" (1/1) ... [2021-10-29 05:23:03,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:23:03,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:23:03,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:23:03,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:23:03,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:03" (1/1) ... [2021-10-29 05:23:03,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:03" (1/1) ... [2021-10-29 05:23:03,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:03" (1/1) ... [2021-10-29 05:23:03,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:03" (1/1) ... [2021-10-29 05:23:03,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:03" (1/1) ... [2021-10-29 05:23:03,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:03" (1/1) ... [2021-10-29 05:23:03,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:03" (1/1) ... [2021-10-29 05:23:03,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:23:03,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:23:03,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:23:03,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:23:03,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:03" (1/1) ... [2021-10-29 05:23:03,162 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:23:03,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:23:03,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:23:03,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:23:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:23:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:23:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-29 05:23:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 05:23:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:23:03,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:23:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-29 05:23:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 05:23:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:23:25,694 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:23:25,694 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-29 05:23:25,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:23:25 BoogieIcfgContainer [2021-10-29 05:23:25,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:23:25,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:23:25,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:23:25,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:23:25,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:23:02" (1/3) ... [2021-10-29 05:23:25,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a90e207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:23:25, skipping insertion in model container [2021-10-29 05:23:25,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:03" (2/3) ... [2021-10-29 05:23:25,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a90e207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:23:25, skipping insertion in model container [2021-10-29 05:23:25,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:23:25" (3/3) ... [2021-10-29 05:23:25,707 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b.c [2021-10-29 05:23:25,712 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:23:25,713 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:23:25,786 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:23:25,794 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 [2021-10-29 05:23:25,794 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:23:25,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 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) [2021-10-29 05:23:25,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 05:23:25,816 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:23:25,817 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:23:25,818 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:23:25,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:23:25,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2021-10-29 05:23:25,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:23:25,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14621838] [2021-10-29 05:23:25,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:23:25,840 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:23:25,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:23:25,845 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:23:25,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:23:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:23:26,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:23:26,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:23:27,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:23:27,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:23:27,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:23:27,167 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:23:27,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14621838] [2021-10-29 05:23:27,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [14621838] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:23:27,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:23:27,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:23:27,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213987138] [2021-10-29 05:23:27,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:23:27,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:23:27,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:23:27,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:23:27,197 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 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 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-10-29 05:23:27,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:23:27,218 INFO L93 Difference]: Finished difference Result 86 states and 140 transitions. [2021-10-29 05:23:27,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:23:27,220 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-10-29 05:23:27,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:23:27,230 INFO L225 Difference]: With dead ends: 86 [2021-10-29 05:23:27,230 INFO L226 Difference]: Without dead ends: 41 [2021-10-29 05:23:27,233 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:23:27,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-29 05:23:27,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-29 05:23:27,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 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) [2021-10-29 05:23:27,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2021-10-29 05:23:27,268 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2021-10-29 05:23:27,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:23:27,269 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2021-10-29 05:23:27,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-10-29 05:23:27,269 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2021-10-29 05:23:27,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:23:27,270 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:23:27,270 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:23:27,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:23:27,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:23:27,487 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:23:27,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:23:27,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2021-10-29 05:23:27,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:23:27,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73938609] [2021-10-29 05:23:27,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:23:27,490 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:23:27,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:23:27,491 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:23:27,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:23:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:23:28,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:23:28,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:23:28,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:23:28,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:23:29,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:23:29,022 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:23:29,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73938609] [2021-10-29 05:23:29,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73938609] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:23:29,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:23:29,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:23:29,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038012928] [2021-10-29 05:23:29,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:23:29,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:23:29,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:23:29,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:23:29,027 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2021-10-29 05:23:30,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:23:30,788 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2021-10-29 05:23:30,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:23:30,789 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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 10 [2021-10-29 05:23:30,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:23:30,790 INFO L225 Difference]: With dead ends: 46 [2021-10-29 05:23:30,790 INFO L226 Difference]: Without dead ends: 12 [2021-10-29 05:23:30,791 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:23:30,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-29 05:23:30,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-29 05:23:30,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 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) [2021-10-29 05:23:30,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2021-10-29 05:23:30,795 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2021-10-29 05:23:30,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:23:30,796 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2021-10-29 05:23:30,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2021-10-29 05:23:30,796 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2021-10-29 05:23:30,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 05:23:30,797 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:23:30,798 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:23:30,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:23:31,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:23:31,007 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:23:31,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:23:31,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1244066674, now seen corresponding path program 1 times [2021-10-29 05:23:31,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:23:31,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160533518] [2021-10-29 05:23:31,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:23:31,010 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:23:31,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:23:31,011 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:23:31,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:23:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:23:31,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 05:23:31,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:23:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:23:32,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:23:51,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:23:51,715 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:23:51,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160533518] [2021-10-29 05:23:51,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160533518] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:23:51,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:23:51,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-29 05:23:51,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334914751] [2021-10-29 05:23:51,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 05:23:51,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:23:51,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 05:23:51,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:23:51,718 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2021-10-29 05:23:52,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:23:52,496 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2021-10-29 05:23:52,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:23:52,497 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) Word has length 11 [2021-10-29 05:23:52,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:23:52,497 INFO L225 Difference]: With dead ends: 12 [2021-10-29 05:23:52,497 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:23:52,498 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-10-29 05:23:52,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:23:52,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:23:52,499 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) [2021-10-29 05:23:52,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:23:52,500 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-29 05:23:52,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:23:52,500 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:23:52,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2021-10-29 05:23:52,501 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:23:52,501 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:23:52,504 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:23:52,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:23:52,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:23:52,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 05:23:52,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:23:52,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:23:52,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:23:52,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:23:52,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:23:52,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:23:52,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:23:52,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:23:52,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:23:52,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:23:53,354 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 96) no Hoare annotation was computed. [2021-10-29 05:23:53,355 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 65) no Hoare annotation was computed. [2021-10-29 05:23:53,355 INFO L857 garLoopResultBuilder]: For program point L118(lines 118 119) no Hoare annotation was computed. [2021-10-29 05:23:53,355 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 97) no Hoare annotation was computed. [2021-10-29 05:23:53,356 INFO L853 garLoopResultBuilder]: At program point L143(lines 107 144) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)))) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-29 05:23:53,356 INFO L857 garLoopResultBuilder]: For program point L160(lines 160 163) no Hoare annotation was computed. [2021-10-29 05:23:53,356 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2021-10-29 05:23:53,357 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 05:23:53,357 INFO L853 garLoopResultBuilder]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2021-10-29 05:23:53,357 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-29 05:23:53,357 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2021-10-29 05:23:53,358 INFO L853 garLoopResultBuilder]: At program point L111-2(lines 111 115) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-29 05:23:53,358 INFO L857 garLoopResultBuilder]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2021-10-29 05:23:53,358 INFO L857 garLoopResultBuilder]: For program point L37(lines 37 38) no Hoare annotation was computed. [2021-10-29 05:23:53,359 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-29 05:23:53,359 INFO L857 garLoopResultBuilder]: For program point L120(lines 120 121) no Hoare annotation was computed. [2021-10-29 05:23:53,359 INFO L857 garLoopResultBuilder]: For program point L87(lines 87 91) no Hoare annotation was computed. [2021-10-29 05:23:53,359 INFO L857 garLoopResultBuilder]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2021-10-29 05:23:53,360 INFO L853 garLoopResultBuilder]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2021-10-29 05:23:53,360 INFO L857 garLoopResultBuilder]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2021-10-29 05:23:53,360 INFO L853 garLoopResultBuilder]: At program point L96(lines 22 98) the Hoare annotation is: false [2021-10-29 05:23:53,360 INFO L857 garLoopResultBuilder]: For program point L39(lines 39 47) no Hoare annotation was computed. [2021-10-29 05:23:53,361 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2021-10-29 05:23:53,361 INFO L857 garLoopResultBuilder]: For program point L122(lines 122 123) no Hoare annotation was computed. [2021-10-29 05:23:53,361 INFO L853 garLoopResultBuilder]: At program point L147(line 147) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)))) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) [2021-10-29 05:23:53,362 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-29 05:23:53,362 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 161) no Hoare annotation was computed. [2021-10-29 05:23:53,362 INFO L860 garLoopResultBuilder]: At program point L165(lines 149 166) the Hoare annotation is: true [2021-10-29 05:23:53,362 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2021-10-29 05:23:53,363 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 05:23:53,363 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 132) no Hoare annotation was computed. [2021-10-29 05:23:53,363 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2021-10-29 05:23:53,363 INFO L857 garLoopResultBuilder]: For program point L58(lines 58 74) no Hoare annotation was computed. [2021-10-29 05:23:53,364 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2021-10-29 05:23:53,364 INFO L853 garLoopResultBuilder]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2021-10-29 05:23:53,364 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 66) no Hoare annotation was computed. [2021-10-29 05:23:53,364 INFO L857 garLoopResultBuilder]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2021-10-29 05:23:53,365 INFO L853 garLoopResultBuilder]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2021-10-29 05:23:53,365 INFO L857 garLoopResultBuilder]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2021-10-29 05:23:53,365 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2021-10-29 05:23:53,365 INFO L853 garLoopResultBuilder]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2021-10-29 05:23:53,366 INFO L857 garLoopResultBuilder]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2021-10-29 05:23:53,366 INFO L857 garLoopResultBuilder]: For program point L68(lines 68 73) no Hoare annotation was computed. [2021-10-29 05:23:53,366 INFO L857 garLoopResultBuilder]: For program point L35(lines 35 36) no Hoare annotation was computed. [2021-10-29 05:23:53,370 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-29 05:23:53,372 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:23:53,381 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,382 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,385 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,389 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,389 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,389 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,391 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,391 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,391 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,392 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,392 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,392 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,393 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,393 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,393 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,393 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,394 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,394 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,395 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,395 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,396 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,396 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,396 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,397 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,397 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,398 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,400 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,400 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,400 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,400 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,401 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,401 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,401 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,402 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,402 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,402 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,402 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,403 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,404 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,404 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,404 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,404 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,405 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,405 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,405 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,406 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,406 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,406 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,406 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,407 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:23:53 BoogieIcfgContainer [2021-10-29 05:23:53,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:23:53,409 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:23:53,409 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:23:53,410 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:23:53,410 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:23:25" (3/4) ... [2021-10-29 05:23:53,414 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:23:53,428 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-29 05:23:53,429 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-29 05:23:53,430 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:23:53,430 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:23:53,454 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-29 05:23:53,454 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-29 05:23:53,455 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2021-10-29 05:23:53,513 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:23:53,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:23:53,515 INFO L168 Benchmark]: Toolchain (without parser) took 51023.74 ms. Allocated memory is still 75.5 MB. Free memory was 57.1 MB in the beginning and 29.3 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:23:53,516 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 75.5 MB. Free memory is still 55.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:23:53,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 555.14 ms. Allocated memory is still 75.5 MB. Free memory was 57.0 MB in the beginning and 55.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:23:53,517 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.82 ms. Allocated memory is still 75.5 MB. Free memory was 55.6 MB in the beginning and 53.2 MB in the end (delta: 2.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:23:53,518 INFO L168 Benchmark]: Boogie Preprocessor took 52.67 ms. Allocated memory is still 75.5 MB. Free memory was 53.2 MB in the beginning and 51.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:23:53,518 INFO L168 Benchmark]: RCFGBuilder took 22543.52 ms. Allocated memory is still 75.5 MB. Free memory was 51.1 MB in the beginning and 34.3 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:23:53,519 INFO L168 Benchmark]: TraceAbstraction took 27709.18 ms. Allocated memory is still 75.5 MB. Free memory was 33.7 MB in the beginning and 35.2 MB in the end (delta: -1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:23:53,519 INFO L168 Benchmark]: Witness Printer took 104.36 ms. Allocated memory is still 75.5 MB. Free memory was 35.0 MB in the beginning and 29.3 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:23:53,522 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 75.5 MB. Free memory is still 55.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 555.14 ms. Allocated memory is still 75.5 MB. Free memory was 57.0 MB in the beginning and 55.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.82 ms. Allocated memory is still 75.5 MB. Free memory was 55.6 MB in the beginning and 53.2 MB in the end (delta: 2.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.67 ms. Allocated memory is still 75.5 MB. Free memory was 53.2 MB in the beginning and 51.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 22543.52 ms. Allocated memory is still 75.5 MB. Free memory was 51.1 MB in the beginning and 34.3 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 27709.18 ms. Allocated memory is still 75.5 MB. Free memory was 33.7 MB in the beginning and 35.2 MB in the end (delta: -1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 104.36 ms. Allocated memory is still 75.5 MB. Free memory was 35.0 MB in the beginning and 29.3 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 161]: 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, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 35 SDslu, 23 SDs, 0 SdLazy, 27 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 11.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 145 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 27 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 20.8s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 5 QuantifiedInterpolants, 427 SizeOfPredicates, 17 NumberOfNonLiveVariables, 173 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 1 specifications checked. All of them hold - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant [2021-10-29 05:23:53,540 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,540 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,540 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,541 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,541 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,553 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 107]: Loop Invariant [2021-10-29 05:23:53,554 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,555 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,555 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,555 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,555 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,556 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,556 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,556 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,556 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,557 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,557 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,557 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,558 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,558 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,559 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,559 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,559 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,559 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,560 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,560 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,560 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,560 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,561 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,561 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant [2021-10-29 05:23:53,562 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,562 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,563 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,563 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,563 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,563 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,564 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,564 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,564 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,564 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,565 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,565 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,566 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,566 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,566 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,567 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,567 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,567 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,567 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:23:53,568 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,568 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,568 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,568 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:23:53,569 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result RESULT: Ultimate proved your program to be correct! [2021-10-29 05:23:53,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf25ee8-e32c-4d1a-89e6-3927fa9f6edb/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...