./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.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_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63d3574782fa6454b0d1694c2d11597178e5561b6615edd1b2b746975245a1dc ................................................................................................................................................................................................................................................................................................................. 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_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63d3574782fa6454b0d1694c2d11597178e5561b6615edd1b2b746975245a1dc ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:28:13,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:28:13,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:28:13,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:28:13,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:28:13,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:28:13,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:28:13,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:28:13,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:28:13,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:28:13,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:28:13,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:28:13,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:28:13,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:28:13,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:28:13,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:28:13,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:28:13,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:28:13,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:28:13,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:28:13,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:28:13,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:28:13,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:28:13,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:28:13,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:28:13,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:28:13,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:28:13,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:28:13,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:28:13,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:28:13,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:28:13,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:28:13,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:28:13,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:28:13,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:28:13,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:28:13,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:28:13,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:28:13,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:28:13,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:28:13,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:28:13,787 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:28:13,835 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:28:13,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:28:13,836 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:28:13,836 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:28:13,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:28:13,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:28:13,839 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:28:13,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:28:13,839 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:28:13,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:28:13,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:28:13,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:28:13,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:28:13,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:28:13,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:28:13,842 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:28:13,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:28:13,842 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:28:13,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:28:13,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:28:13,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:28:13,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:28:13,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:28:13,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:28:13,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:28:13,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:28:13,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:28:13,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:28:13,845 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:28:13,846 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:28:13,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:28:13,846 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:28:13,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63d3574782fa6454b0d1694c2d11597178e5561b6615edd1b2b746975245a1dc [2021-10-28 23:28:14,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:28:14,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:28:14,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:28:14,212 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:28:14,212 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:28:14,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2021-10-28 23:28:14,319 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/data/6abb911b8/c300ae4bbfe34ebb8226ba87e78bb34b/FLAGb198b2d63 [2021-10-28 23:28:15,029 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:28:15,032 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2021-10-28 23:28:15,056 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/data/6abb911b8/c300ae4bbfe34ebb8226ba87e78bb34b/FLAGb198b2d63 [2021-10-28 23:28:15,335 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/data/6abb911b8/c300ae4bbfe34ebb8226ba87e78bb34b [2021-10-28 23:28:15,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:28:15,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:28:15,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:28:15,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:28:15,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:28:15,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:28:15" (1/1) ... [2021-10-28 23:28:15,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12dc2b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:15, skipping insertion in model container [2021-10-28 23:28:15,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:28:15" (1/1) ... [2021-10-28 23:28:15,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:28:15,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:28:15,734 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_f5cdd488-8204-427a-b3c9-027458e53cf3/sv-benchmarks/c/float-newlib/float_req_bl_0480.c[4489,4502] [2021-10-28 23:28:15,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:28:15,750 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:28:15,800 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_f5cdd488-8204-427a-b3c9-027458e53cf3/sv-benchmarks/c/float-newlib/float_req_bl_0480.c[4489,4502] [2021-10-28 23:28:15,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:28:15,820 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:28:15,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:15 WrapperNode [2021-10-28 23:28:15,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:28:15,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:28:15,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:28:15,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:28:15,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:15" (1/1) ... [2021-10-28 23:28:15,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:15" (1/1) ... [2021-10-28 23:28:15,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:28:15,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:28:15,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:28:15,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:28:15,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:15" (1/1) ... [2021-10-28 23:28:15,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:15" (1/1) ... [2021-10-28 23:28:15,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:15" (1/1) ... [2021-10-28 23:28:15,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:15" (1/1) ... [2021-10-28 23:28:15,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:15" (1/1) ... [2021-10-28 23:28:15,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:15" (1/1) ... [2021-10-28 23:28:15,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:15" (1/1) ... [2021-10-28 23:28:15,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:28:16,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:28:16,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:28:16,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:28:16,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:15" (1/1) ... [2021-10-28 23:28:16,020 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:28:16,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:16,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:28:16,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:28:16,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:28:16,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:28:16,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-28 23:28:16,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:28:16,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-28 23:28:16,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:28:16,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:28:16,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:28:16,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:28:16,804 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:28:16,804 INFO L299 CfgBuilder]: Removed 32 assume(true) statements. [2021-10-28 23:28:16,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:28:16 BoogieIcfgContainer [2021-10-28 23:28:16,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:28:16,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:28:16,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:28:16,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:28:16,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:28:15" (1/3) ... [2021-10-28 23:28:16,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3253609e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:28:16, skipping insertion in model container [2021-10-28 23:28:16,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:15" (2/3) ... [2021-10-28 23:28:16,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3253609e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:28:16, skipping insertion in model container [2021-10-28 23:28:16,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:28:16" (3/3) ... [2021-10-28 23:28:16,816 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2021-10-28 23:28:16,822 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:28:16,822 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:28:16,877 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:28:16,885 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=PETRI_NET, 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 [2021-10-28 23:28:16,885 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:28:16,904 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 74 states have (on average 1.6891891891891893) internal successors, (125), 75 states have internal predecessors, (125), 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) [2021-10-28 23:28:16,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:28:16,910 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:16,911 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:28:16,911 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:28:16,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:16,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1036093437, now seen corresponding path program 1 times [2021-10-28 23:28:16,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:16,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131274069] [2021-10-28 23:28:16,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:16,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:17,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:17,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:17,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131274069] [2021-10-28 23:28:17,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131274069] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:28:17,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:28:17,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:28:17,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585162769] [2021-10-28 23:28:17,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:28:17,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:17,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:28:17,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:28:17,122 INFO L87 Difference]: Start difference. First operand has 76 states, 74 states have (on average 1.6891891891891893) internal successors, (125), 75 states have internal predecessors, (125), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:28:17,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:17,150 INFO L93 Difference]: Finished difference Result 150 states and 248 transitions. [2021-10-28 23:28:17,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:28:17,152 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-28 23:28:17,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:17,164 INFO L225 Difference]: With dead ends: 150 [2021-10-28 23:28:17,164 INFO L226 Difference]: Without dead ends: 73 [2021-10-28 23:28:17,167 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 [2021-10-28 23:28:17,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-28 23:28:17,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-10-28 23:28:17,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 72 states have internal predecessors, (101), 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) [2021-10-28 23:28:17,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2021-10-28 23:28:17,212 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 10 [2021-10-28 23:28:17,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:17,213 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2021-10-28 23:28:17,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:28:17,213 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2021-10-28 23:28:17,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:28:17,214 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:17,214 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:28:17,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:28:17,215 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:28:17,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:17,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1299213760, now seen corresponding path program 1 times [2021-10-28 23:28:17,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:17,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911067552] [2021-10-28 23:28:17,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:17,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:28:17,324 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:28:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:28:17,384 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:28:17,385 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:28:17,387 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:28:17,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:28:17,394 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 23:28:17,398 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:28:17,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:28:17 BoogieIcfgContainer [2021-10-28 23:28:17,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:28:17,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:28:17,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:28:17,438 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:28:17,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:28:16" (3/4) ... [2021-10-28 23:28:17,443 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:28:17,443 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:28:17,446 INFO L168 Benchmark]: Toolchain (without parser) took 2104.05 ms. Allocated memory was 111.1 MB in the beginning and 146.8 MB in the end (delta: 35.7 MB). Free memory was 75.4 MB in the beginning and 116.1 MB in the end (delta: -40.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:28:17,446 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 111.1 MB. Free memory was 84.9 MB in the beginning and 84.9 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:28:17,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 478.26 ms. Allocated memory is still 111.1 MB. Free memory was 75.2 MB in the beginning and 82.4 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:17,448 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.26 ms. Allocated memory is still 111.1 MB. Free memory was 82.4 MB in the beginning and 79.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:17,452 INFO L168 Benchmark]: Boogie Preprocessor took 81.23 ms. Allocated memory is still 111.1 MB. Free memory was 79.8 MB in the beginning and 77.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:17,453 INFO L168 Benchmark]: RCFGBuilder took 796.80 ms. Allocated memory is still 111.1 MB. Free memory was 77.6 MB in the beginning and 58.3 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:17,454 INFO L168 Benchmark]: TraceAbstraction took 629.00 ms. Allocated memory was 111.1 MB in the beginning and 146.8 MB in the end (delta: 35.7 MB). Free memory was 58.3 MB in the beginning and 116.1 MB in the end (delta: -57.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:28:17,454 INFO L168 Benchmark]: Witness Printer took 5.30 ms. Allocated memory is still 146.8 MB. Free memory is still 116.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:28:17,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 111.1 MB. Free memory was 84.9 MB in the beginning and 84.9 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 478.26 ms. Allocated memory is still 111.1 MB. Free memory was 75.2 MB in the beginning and 82.4 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.26 ms. Allocated memory is still 111.1 MB. Free memory was 82.4 MB in the beginning and 79.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.23 ms. Allocated memory is still 111.1 MB. Free memory was 79.8 MB in the beginning and 77.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 796.80 ms. Allocated memory is still 111.1 MB. Free memory was 77.6 MB in the beginning and 58.3 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 629.00 ms. Allocated memory was 111.1 MB in the beginning and 146.8 MB in the end (delta: 35.7 MB). Free memory was 58.3 MB in the beginning and 116.1 MB in the end (delta: -57.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.30 ms. Allocated memory is still 146.8 MB. Free memory is still 116.1 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: 184]: 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 183, overapproximation of someUnaryDOUBLEoperation at line 86, overapproximation of bitwiseAnd at line 100. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L83-L90] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L179] float x = 1.0f; [L93] float z, p, q, r, w, s, c, df; [L94] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L96] ieee_float_shape_type gf_u; [L97] gf_u.value = (x) [L98] EXPR gf_u.word [L98] (hx) = gf_u.word [L100] ix = hx & 0x7fffffff VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L101] COND TRUE ix == 0x3f800000 VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L102] COND TRUE hx > 0 [L103] return 0.0; VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L180] float res = __ieee754_acosf(x); [L183] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L183] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L184] reach_error() VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 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: 104 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=76occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2021-10-28 23:28:17,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/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 [2021-10-28 23:28:20,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:28:20,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:28:20,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:28:20,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:28:20,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:28:20,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:28:20,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:28:20,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:28:20,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:28:20,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:28:20,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:28:20,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:28:20,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:28:20,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:28:20,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:28:20,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:28:20,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:28:20,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:28:20,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:28:20,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:28:20,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:28:20,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:28:20,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:28:20,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:28:20,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:28:20,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:28:20,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:28:20,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:28:20,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:28:20,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:28:20,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:28:20,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:28:20,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:28:20,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:28:20,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:28:20,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:28:20,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:28:20,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:28:20,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:28:20,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:28:20,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 23:28:20,630 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:28:20,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:28:20,631 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:28:20,631 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:28:20,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:28:20,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:28:20,633 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:28:20,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:28:20,634 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:28:20,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:28:20,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:28:20,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:28:20,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:28:20,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:28:20,635 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:28:20,636 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:28:20,636 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:28:20,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:28:20,636 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:28:20,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:28:20,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:28:20,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:28:20,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:28:20,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:28:20,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:28:20,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:28:20,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:28:20,639 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:28:20,639 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:28:20,639 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:28:20,639 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:28:20,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:28:20,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:28:20,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:28:20,641 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_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63d3574782fa6454b0d1694c2d11597178e5561b6615edd1b2b746975245a1dc [2021-10-28 23:28:21,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:28:21,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:28:21,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:28:21,165 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:28:21,166 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:28:21,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2021-10-28 23:28:21,246 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/data/28a8ecf87/7b792cd3009849ad8149d6341bc18eee/FLAG636ef59a6 [2021-10-28 23:28:21,789 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:28:21,789 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2021-10-28 23:28:21,798 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/data/28a8ecf87/7b792cd3009849ad8149d6341bc18eee/FLAG636ef59a6 [2021-10-28 23:28:22,137 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/data/28a8ecf87/7b792cd3009849ad8149d6341bc18eee [2021-10-28 23:28:22,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:28:22,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:28:22,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:28:22,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:28:22,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:28:22,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:28:22" (1/1) ... [2021-10-28 23:28:22,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a90381d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:22, skipping insertion in model container [2021-10-28 23:28:22,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:28:22" (1/1) ... [2021-10-28 23:28:22,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:28:22,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:28:22,438 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_f5cdd488-8204-427a-b3c9-027458e53cf3/sv-benchmarks/c/float-newlib/float_req_bl_0480.c[4489,4502] [2021-10-28 23:28:22,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:28:22,456 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:28:22,550 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_f5cdd488-8204-427a-b3c9-027458e53cf3/sv-benchmarks/c/float-newlib/float_req_bl_0480.c[4489,4502] [2021-10-28 23:28:22,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:28:22,580 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:28:22,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:22 WrapperNode [2021-10-28 23:28:22,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:28:22,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:28:22,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:28:22,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:28:22,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:22" (1/1) ... [2021-10-28 23:28:22,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:22" (1/1) ... [2021-10-28 23:28:22,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:28:22,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:28:22,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:28:22,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:28:22,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:22" (1/1) ... [2021-10-28 23:28:22,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:22" (1/1) ... [2021-10-28 23:28:22,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:22" (1/1) ... [2021-10-28 23:28:22,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:22" (1/1) ... [2021-10-28 23:28:22,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:22" (1/1) ... [2021-10-28 23:28:22,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:22" (1/1) ... [2021-10-28 23:28:22,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:22" (1/1) ... [2021-10-28 23:28:22,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:28:22,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:28:22,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:28:22,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:28:22,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:22" (1/1) ... [2021-10-28 23:28:22,714 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:28:22,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:22,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:28:22,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:28:22,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:28:22,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:28:22,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-28 23:28:22,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:28:22,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:28:22,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:28:22,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-28 23:28:22,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:28:22,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:28:35,027 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:28:35,027 INFO L299 CfgBuilder]: Removed 32 assume(true) statements. [2021-10-28 23:28:35,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:28:35 BoogieIcfgContainer [2021-10-28 23:28:35,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:28:35,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:28:35,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:28:35,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:28:35,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:28:22" (1/3) ... [2021-10-28 23:28:35,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a0c2e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:28:35, skipping insertion in model container [2021-10-28 23:28:35,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:22" (2/3) ... [2021-10-28 23:28:35,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a0c2e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:28:35, skipping insertion in model container [2021-10-28 23:28:35,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:28:35" (3/3) ... [2021-10-28 23:28:35,040 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2021-10-28 23:28:35,046 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:28:35,047 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:28:35,123 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:28:35,146 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=PETRI_NET, 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 [2021-10-28 23:28:35,146 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:28:35,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 74 states have (on average 1.6891891891891893) internal successors, (125), 75 states have internal predecessors, (125), 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) [2021-10-28 23:28:35,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:28:35,181 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:35,181 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:28:35,182 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:28:35,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:35,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1036093437, now seen corresponding path program 1 times [2021-10-28 23:28:35,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:28:35,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048567202] [2021-10-28 23:28:35,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:35,216 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:28:35,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:28:35,218 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:28:35,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:28:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:35,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 23:28:35,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:36,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:36,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:28:36,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:36,147 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:28:36,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048567202] [2021-10-28 23:28:36,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048567202] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:28:36,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:28:36,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:28:36,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619123065] [2021-10-28 23:28:36,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:28:36,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:28:36,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:28:36,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:28:36,178 INFO L87 Difference]: Start difference. First operand has 76 states, 74 states have (on average 1.6891891891891893) internal successors, (125), 75 states have internal predecessors, (125), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:28:36,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:36,205 INFO L93 Difference]: Finished difference Result 150 states and 248 transitions. [2021-10-28 23:28:36,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:28:36,207 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-28 23:28:36,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:36,218 INFO L225 Difference]: With dead ends: 150 [2021-10-28 23:28:36,218 INFO L226 Difference]: Without dead ends: 73 [2021-10-28 23:28:36,221 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:28:36,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-28 23:28:36,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-10-28 23:28:36,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 72 states have internal predecessors, (101), 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) [2021-10-28 23:28:36,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2021-10-28 23:28:36,271 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 10 [2021-10-28 23:28:36,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:36,272 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2021-10-28 23:28:36,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:28:36,273 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2021-10-28 23:28:36,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:28:36,274 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:36,274 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:28:36,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:36,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:28:36,486 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:28:36,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:36,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1299213760, now seen corresponding path program 1 times [2021-10-28 23:28:36,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:28:36,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143442634] [2021-10-28 23:28:36,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:36,489 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:28:36,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:28:36,493 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:28:36,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:28:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:37,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:28:37,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:37,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:37,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:28:37,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:37,597 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:28:37,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143442634] [2021-10-28 23:28:37,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143442634] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:28:37,598 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:28:37,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-28 23:28:37,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371132289] [2021-10-28 23:28:37,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:28:37,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:28:37,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:28:37,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:28:37,602 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-10-28 23:28:46,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:46,418 INFO L93 Difference]: Finished difference Result 85 states and 112 transitions. [2021-10-28 23:28:46,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:28:46,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 [2021-10-28 23:28:46,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:46,645 INFO L225 Difference]: With dead ends: 85 [2021-10-28 23:28:46,645 INFO L226 Difference]: Without dead ends: 82 [2021-10-28 23:28:46,646 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:28:46,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-28 23:28:46,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 75. [2021-10-28 23:28:46,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 74 states have internal predecessors, (103), 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) [2021-10-28 23:28:46,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 103 transitions. [2021-10-28 23:28:46,660 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 103 transitions. Word has length 11 [2021-10-28 23:28:46,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:46,660 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 103 transitions. [2021-10-28 23:28:46,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-10-28 23:28:46,661 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 103 transitions. [2021-10-28 23:28:46,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:28:46,662 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:46,662 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:28:46,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-28 23:28:46,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:28:46,872 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:28:46,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:46,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1297366718, now seen corresponding path program 1 times [2021-10-28 23:28:46,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:28:46,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925268296] [2021-10-28 23:28:46,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:46,875 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:28:46,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:28:46,876 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:28:46,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:28:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:47,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:28:47,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:47,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:47,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:28:48,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:48,426 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:28:48,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925268296] [2021-10-28 23:28:48,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [925268296] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:28:48,427 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:28:48,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 23:28:48,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467603339] [2021-10-28 23:28:48,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:28:48,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:28:48,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:28:48,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:28:48,430 INFO L87 Difference]: Start difference. First operand 75 states and 103 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-10-28 23:28:52,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:52,164 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2021-10-28 23:28:52,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:28:52,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 [2021-10-28 23:28:52,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:52,294 INFO L225 Difference]: With dead ends: 93 [2021-10-28 23:28:52,294 INFO L226 Difference]: Without dead ends: 60 [2021-10-28 23:28:52,294 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:28:52,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-10-28 23:28:52,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 51. [2021-10-28 23:28:52,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.32) internal successors, (66), 50 states have internal predecessors, (66), 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) [2021-10-28 23:28:52,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2021-10-28 23:28:52,304 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 11 [2021-10-28 23:28:52,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:52,304 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2021-10-28 23:28:52,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-10-28 23:28:52,305 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2021-10-28 23:28:52,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:28:52,306 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:52,306 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:28:52,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:52,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:28:52,532 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:28:52,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:52,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1092345056, now seen corresponding path program 1 times [2021-10-28 23:28:52,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:28:52,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668849717] [2021-10-28 23:28:52,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:52,534 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:28:52,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:28:52,535 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:28:52,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:28:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:53,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:28:53,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:53,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:53,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:28:54,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:54,664 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:28:54,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668849717] [2021-10-28 23:28:54,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668849717] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:28:54,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:28:54,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 23:28:54,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119106402] [2021-10-28 23:28:54,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:28:54,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:28:54,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:28:54,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:28:54,667 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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) [2021-10-28 23:28:55,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:55,099 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2021-10-28 23:28:55,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:28:55,101 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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 [2021-10-28 23:28:55,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:55,102 INFO L225 Difference]: With dead ends: 58 [2021-10-28 23:28:55,102 INFO L226 Difference]: Without dead ends: 16 [2021-10-28 23:28:55,103 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:28:55,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-28 23:28:55,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-28 23:28:55,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 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) [2021-10-28 23:28:55,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-10-28 23:28:55,107 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2021-10-28 23:28:55,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:55,108 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-10-28 23:28:55,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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) [2021-10-28 23:28:55,109 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-10-28 23:28:55,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 23:28:55,109 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:55,110 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:28:55,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:55,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:28:55,324 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:28:55,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:55,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1064969237, now seen corresponding path program 1 times [2021-10-28 23:28:55,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:28:55,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [699141570] [2021-10-28 23:28:55,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:55,326 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:28:55,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:28:55,328 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:28:55,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:28:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:56,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:28:56,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:57,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:57,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:28:58,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:58,549 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:28:58,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [699141570] [2021-10-28 23:28:58,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [699141570] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:28:58,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:28:58,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-10-28 23:28:58,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702075396] [2021-10-28 23:28:58,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:28:58,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:28:58,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:28:58,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:28:58,553 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 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) [2021-10-28 23:28:59,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:59,402 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-10-28 23:28:59,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:28:59,403 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 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 15 [2021-10-28 23:28:59,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:59,403 INFO L225 Difference]: With dead ends: 16 [2021-10-28 23:28:59,403 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:28:59,404 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:28:59,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:28:59,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:28:59,404 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) [2021-10-28 23:28:59,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:28:59,405 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-28 23:28:59,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:59,405 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:28:59,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 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) [2021-10-28 23:28:59,405 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:28:59,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:28:59,408 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:28:59,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:59,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:28:59,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:28:59,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:28:59,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:28:59,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:28:59,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:28:59,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:28:59,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:28:59,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:28:59,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:28:59,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:28:59,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:28:59,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:28:59,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:28:59,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:28:59,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:28:59,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:28:59,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:29:00,606 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-10-28 23:29:00,607 INFO L853 garLoopResultBuilder]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2021-10-28 23:29:00,607 INFO L857 garLoopResultBuilder]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2021-10-28 23:29:00,607 INFO L853 garLoopResultBuilder]: At program point L52-6(lines 52 61) the Hoare annotation is: false [2021-10-28 23:29:00,608 INFO L857 garLoopResultBuilder]: For program point L52-7(lines 16 81) no Hoare annotation was computed. [2021-10-28 23:29:00,608 INFO L857 garLoopResultBuilder]: For program point L102(lines 102 105) no Hoare annotation was computed. [2021-10-28 23:29:00,608 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:29:00,608 INFO L857 garLoopResultBuilder]: For program point L37(lines 37 41) no Hoare annotation was computed. [2021-10-28 23:29:00,608 INFO L857 garLoopResultBuilder]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2021-10-28 23:29:00,608 INFO L857 garLoopResultBuilder]: For program point L37-3(lines 37 41) no Hoare annotation was computed. [2021-10-28 23:29:00,609 INFO L857 garLoopResultBuilder]: For program point L37-5(lines 37 41) no Hoare annotation was computed. [2021-10-28 23:29:00,609 INFO L857 garLoopResultBuilder]: For program point L54(lines 54 58) no Hoare annotation was computed. [2021-10-28 23:29:00,609 INFO L857 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-10-28 23:29:00,609 INFO L857 garLoopResultBuilder]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2021-10-28 23:29:00,609 INFO L853 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2021-10-28 23:29:00,609 INFO L857 garLoopResultBuilder]: For program point L54-3(lines 54 58) no Hoare annotation was computed. [2021-10-28 23:29:00,609 INFO L857 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2021-10-28 23:29:00,609 INFO L857 garLoopResultBuilder]: For program point L54-5(lines 54 58) no Hoare annotation was computed. [2021-10-28 23:29:00,609 INFO L857 garLoopResultBuilder]: For program point L21-5(lines 21 25) no Hoare annotation was computed. [2021-10-28 23:29:00,610 INFO L853 garLoopResultBuilder]: At program point L21-6(lines 21 25) the Hoare annotation is: false [2021-10-28 23:29:00,610 INFO L857 garLoopResultBuilder]: For program point L21-7(lines 21 25) no Hoare annotation was computed. [2021-10-28 23:29:00,610 INFO L853 garLoopResultBuilder]: At program point L170(lines 161 171) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) |ULTIMATE.start_main_#t~short18| (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start_main_~res~0)) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)))) (exists ((ULTIMATE.start___ieee754_acosf_~hx~1 (_ BitVec 32))) (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (= ULTIMATE.start___ieee754_acosf_~ix~1 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_acosf_~hx~1)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start___signbit_float_~x)) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32))) [2021-10-28 23:29:00,610 INFO L857 garLoopResultBuilder]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2021-10-28 23:29:00,610 INFO L853 garLoopResultBuilder]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2021-10-28 23:29:00,611 INFO L857 garLoopResultBuilder]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2021-10-28 23:29:00,611 INFO L857 garLoopResultBuilder]: For program point L38-7(lines 38 39) no Hoare annotation was computed. [2021-10-28 23:29:00,611 INFO L853 garLoopResultBuilder]: At program point L38-8(lines 38 39) the Hoare annotation is: false [2021-10-28 23:29:00,611 INFO L857 garLoopResultBuilder]: For program point L38-9(lines 38 39) no Hoare annotation was computed. [2021-10-28 23:29:00,611 INFO L857 garLoopResultBuilder]: For program point L121(lines 121 158) no Hoare annotation was computed. [2021-10-28 23:29:00,611 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 138 142) no Hoare annotation was computed. [2021-10-28 23:29:00,611 INFO L853 garLoopResultBuilder]: At program point L138-2(lines 138 142) the Hoare annotation is: false [2021-10-28 23:29:00,612 INFO L860 garLoopResultBuilder]: At program point L188(lines 173 189) the Hoare annotation is: true [2021-10-28 23:29:00,612 INFO L857 garLoopResultBuilder]: For program point L106(lines 106 108) no Hoare annotation was computed. [2021-10-28 23:29:00,612 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:29:00,612 INFO L853 garLoopResultBuilder]: At program point L157(lines 92 159) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (exists ((ULTIMATE.start___ieee754_acosf_~hx~1 (_ BitVec 32))) (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (= ULTIMATE.start___ieee754_acosf_~ix~1 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_acosf_~hx~1))))) [2021-10-28 23:29:00,613 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2021-10-28 23:29:00,613 INFO L853 garLoopResultBuilder]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2021-10-28 23:29:00,613 INFO L857 garLoopResultBuilder]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2021-10-28 23:29:00,613 INFO L857 garLoopResultBuilder]: For program point L75-5(lines 75 79) no Hoare annotation was computed. [2021-10-28 23:29:00,614 INFO L853 garLoopResultBuilder]: At program point L75-6(lines 75 79) the Hoare annotation is: false [2021-10-28 23:29:00,614 INFO L857 garLoopResultBuilder]: For program point L75-7(lines 75 79) no Hoare annotation was computed. [2021-10-28 23:29:00,614 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 158) no Hoare annotation was computed. [2021-10-28 23:29:00,614 INFO L857 garLoopResultBuilder]: For program point L143(lines 143 147) no Hoare annotation was computed. [2021-10-28 23:29:00,614 INFO L857 garLoopResultBuilder]: For program point L110(lines 110 111) no Hoare annotation was computed. [2021-10-28 23:29:00,615 INFO L857 garLoopResultBuilder]: For program point L143-1(lines 133 158) no Hoare annotation was computed. [2021-10-28 23:29:00,615 INFO L857 garLoopResultBuilder]: For program point L143-2(lines 143 147) no Hoare annotation was computed. [2021-10-28 23:29:00,615 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-10-28 23:29:00,615 INFO L857 garLoopResultBuilder]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2021-10-28 23:29:00,616 INFO L857 garLoopResultBuilder]: For program point L44-3(lines 44 45) no Hoare annotation was computed. [2021-10-28 23:29:00,616 INFO L857 garLoopResultBuilder]: For program point L44-5(lines 44 45) no Hoare annotation was computed. [2021-10-28 23:29:00,616 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:29:00,616 INFO L857 garLoopResultBuilder]: For program point L28(lines 28 29) no Hoare annotation was computed. [2021-10-28 23:29:00,616 INFO L857 garLoopResultBuilder]: For program point L28-1(lines 28 29) no Hoare annotation was computed. [2021-10-28 23:29:00,617 INFO L857 garLoopResultBuilder]: For program point L95-1(lines 95 99) no Hoare annotation was computed. [2021-10-28 23:29:00,617 INFO L853 garLoopResultBuilder]: At program point L95-2(lines 95 99) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) [2021-10-28 23:29:00,617 INFO L857 garLoopResultBuilder]: For program point L95-3(lines 95 99) no Hoare annotation was computed. [2021-10-28 23:29:00,617 INFO L857 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2021-10-28 23:29:00,618 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2021-10-28 23:29:00,618 INFO L853 garLoopResultBuilder]: At program point L80(lines 16 81) the Hoare annotation is: false [2021-10-28 23:29:00,618 INFO L853 garLoopResultBuilder]: At program point L80-1(lines 16 81) the Hoare annotation is: false [2021-10-28 23:29:00,618 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-10-28 23:29:00,619 INFO L857 garLoopResultBuilder]: For program point L31-1(lines 31 32) no Hoare annotation was computed. [2021-10-28 23:29:00,619 INFO L857 garLoopResultBuilder]: For program point L164-1(lines 164 168) no Hoare annotation was computed. [2021-10-28 23:29:00,619 INFO L853 garLoopResultBuilder]: At program point L164-2(lines 164 168) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) |ULTIMATE.start_main_#t~short18| (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start_main_~res~0)) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (exists ((ULTIMATE.start___ieee754_acosf_~hx~1 (_ BitVec 32))) (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (= ULTIMATE.start___ieee754_acosf_~ix~1 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_acosf_~hx~1)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start___signbit_float_~x))) [2021-10-28 23:29:00,619 INFO L857 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2021-10-28 23:29:00,620 INFO L857 garLoopResultBuilder]: For program point L164-3(lines 164 168) no Hoare annotation was computed. [2021-10-28 23:29:00,620 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:29:00,620 INFO L857 garLoopResultBuilder]: For program point L65-2(lines 65 71) no Hoare annotation was computed. [2021-10-28 23:29:00,620 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 184) no Hoare annotation was computed. [2021-10-28 23:29:00,621 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2021-10-28 23:29:00,621 INFO L857 garLoopResultBuilder]: For program point L33-1(lines 33 34) no Hoare annotation was computed. [2021-10-28 23:29:00,621 INFO L857 garLoopResultBuilder]: For program point L67(lines 67 70) no Hoare annotation was computed. [2021-10-28 23:29:00,621 INFO L857 garLoopResultBuilder]: For program point L67-3(lines 67 70) no Hoare annotation was computed. [2021-10-28 23:29:00,622 INFO L857 garLoopResultBuilder]: For program point L183(line 183) no Hoare annotation was computed. [2021-10-28 23:29:00,622 INFO L857 garLoopResultBuilder]: For program point L183-2(lines 183 186) no Hoare annotation was computed. [2021-10-28 23:29:00,622 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 108) no Hoare annotation was computed. [2021-10-28 23:29:00,626 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-10-28 23:29:00,628 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:29:00,638 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,639 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,639 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,639 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,639 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,640 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,640 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,640 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,646 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,646 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,647 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,647 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,647 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,647 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,648 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,648 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,653 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,654 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,654 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,654 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,655 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,655 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,659 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,659 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,660 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,660 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,661 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,663 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,663 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,663 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,663 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,664 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,664 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,664 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,664 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,665 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,666 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,667 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,672 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,672 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,672 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,673 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,673 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,673 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,673 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,673 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,674 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,674 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,674 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,675 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,675 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,676 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,676 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,676 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,676 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,678 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:29:00 BoogieIcfgContainer [2021-10-28 23:29:00,679 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:29:00,680 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:29:00,680 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:29:00,680 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:29:00,681 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:28:35" (3/4) ... [2021-10-28 23:29:00,685 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:29:00,704 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2021-10-28 23:29:00,705 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-28 23:29:00,705 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:29:00,706 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:29:00,748 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x) [2021-10-28 23:29:00,748 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && (\exists ULTIMATE.start___ieee754_acosf_~hx~1 : bv32 :: (\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_acosf_~hx~1[31:31], ULTIMATE.start___ieee754_acosf_~hx~1[30:23], ULTIMATE.start___ieee754_acosf_~hx~1[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_acosf_~hx~1)) [2021-10-28 23:29:00,749 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && (\exists ULTIMATE.start___ieee754_acosf_~hx~1 : bv32 :: (\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_acosf_~hx~1[31:31], ULTIMATE.start___ieee754_acosf_~hx~1[30:23], ULTIMATE.start___ieee754_acosf_~hx~1[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_acosf_~hx~1))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x) [2021-10-28 23:29:00,750 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]))) && (\exists ULTIMATE.start___ieee754_acosf_~hx~1 : bv32 :: (\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_acosf_~hx~1[31:31], ULTIMATE.start___ieee754_acosf_~hx~1[30:23], ULTIMATE.start___ieee754_acosf_~hx~1[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_acosf_~hx~1))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && \result == 0bv32 [2021-10-28 23:29:00,820 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:29:00,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:29:00,822 INFO L168 Benchmark]: Toolchain (without parser) took 38679.87 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 30.4 MB in the beginning and 46.3 MB in the end (delta: -15.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:00,823 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 54.5 MB. Free memory was 34.3 MB in the beginning and 34.3 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:29:00,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.46 ms. Allocated memory is still 54.5 MB. Free memory was 30.2 MB in the beginning and 34.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:00,824 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.12 ms. Allocated memory is still 54.5 MB. Free memory was 34.0 MB in the beginning and 31.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:00,824 INFO L168 Benchmark]: Boogie Preprocessor took 56.47 ms. Allocated memory is still 54.5 MB. Free memory was 31.5 MB in the beginning and 29.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:00,825 INFO L168 Benchmark]: RCFGBuilder took 12325.17 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 29.0 MB in the beginning and 32.9 MB in the end (delta: -3.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:00,825 INFO L168 Benchmark]: TraceAbstraction took 25647.23 ms. Allocated memory is still 69.2 MB. Free memory was 32.6 MB in the beginning and 28.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:00,826 INFO L168 Benchmark]: Witness Printer took 140.68 ms. Allocated memory is still 69.2 MB. Free memory was 28.7 MB in the beginning and 46.3 MB in the end (delta: -17.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:00,828 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 54.5 MB. Free memory was 34.3 MB in the beginning and 34.3 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 438.46 ms. Allocated memory is still 54.5 MB. Free memory was 30.2 MB in the beginning and 34.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.12 ms. Allocated memory is still 54.5 MB. Free memory was 34.0 MB in the beginning and 31.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.47 ms. Allocated memory is still 54.5 MB. Free memory was 31.5 MB in the beginning and 29.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 12325.17 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 29.0 MB in the beginning and 32.9 MB in the end (delta: -3.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 25647.23 ms. Allocated memory is still 69.2 MB. Free memory was 32.6 MB in the beginning and 28.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. * Witness Printer took 140.68 ms. Allocated memory is still 69.2 MB. Free memory was 28.7 MB in the beginning and 46.3 MB in the end (delta: -17.6 MB). Peak memory consumption was 6.6 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 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[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,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[ULTIMATE.start___ieee754_acosf_~hx~1,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,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[ULTIMATE.start___ieee754_acosf_~hx~1,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 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[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,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[ULTIMATE.start___ieee754_acosf_~hx~1,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 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[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,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[ULTIMATE.start___ieee754_acosf_~hx~1,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 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 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[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,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[ULTIMATE.start___ieee754_acosf_~hx~1,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 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[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,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[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 184]: 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, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 282 SDtfs, 201 SDslu, 284 SDs, 0 SdLazy, 45 SolverSat, 10 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 12.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 16 PreInvPairs, 21 NumberOfFragments, 191 HoareAnnotationTreeSize, 16 FomulaSimplifications, 78 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 16 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 20 QuantifiedInterpolants, 352 SizeOfPredicates, 29 NumberOfNonLiveVariables, 301 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 92]: Loop Invariant [2021-10-28 23:29:00,845 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,846 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,846 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,846 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,846 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,847 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,847 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,847 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,848 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,848 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,848 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,849 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,849 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,849 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,849 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,849 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && (\exists ULTIMATE.start___ieee754_acosf_~hx~1 : bv32 :: (\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_acosf_~hx~1[31:31], ULTIMATE.start___ieee754_acosf_~hx~1[30:23], ULTIMATE.start___ieee754_acosf_~hx~1[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_acosf_~hx~1)) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 164]: Loop Invariant [2021-10-28 23:29:00,851 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,851 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,855 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,857 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,857 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,859 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,859 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,859 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,861 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,861 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && (\exists ULTIMATE.start___ieee754_acosf_~hx~1 : bv32 :: (\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_acosf_~hx~1[31:31], ULTIMATE.start___ieee754_acosf_~hx~1[30:23], ULTIMATE.start___ieee754_acosf_~hx~1[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_acosf_~hx~1))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 95]: Loop Invariant [2021-10-28 23:29:00,864 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,865 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x) - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 161]: Loop Invariant [2021-10-28 23:29:00,866 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,866 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,866 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,866 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,866 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,867 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,867 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,867 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,868 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,868 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,868 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,875 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,875 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:29:00,875 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-28 23:29:00,876 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]))) && (\exists ULTIMATE.start___ieee754_acosf_~hx~1 : bv32 :: (\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_acosf_~hx~1[31:31], ULTIMATE.start___ieee754_acosf_~hx~1[30:23], ULTIMATE.start___ieee754_acosf_~hx~1[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_acosf_~hx~1))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && \result == 0bv32 RESULT: Ultimate proved your program to be correct! [2021-10-28 23:29:01,104 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-28 23:29:01,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cdd488-8204-427a-b3c9-027458e53cf3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...