./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0660b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0660b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa --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 987a617ddfa597b9fd514ac45c30c05d0ba2d1aba473d81a379c621ee06eaca4 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:24:42,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:24:42,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:24:42,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:24:42,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:24:42,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:24:42,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:24:42,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:24:42,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:24:42,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:24:42,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:24:42,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:24:42,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:24:42,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:24:42,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:24:42,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:24:42,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:24:42,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:24:42,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:24:42,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:24:42,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:24:42,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:24:42,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:24:42,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:24:42,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:24:42,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:24:42,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:24:42,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:24:42,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:24:42,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:24:42,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:24:42,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:24:42,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:24:42,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:24:42,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:24:42,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:24:42,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:24:42,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:24:42,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:24:42,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:24:42,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:24:42,856 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 20:24:42,873 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:24:42,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:24:42,873 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:24:42,873 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:24:42,874 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:24:42,874 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:24:42,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:24:42,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:24:42,875 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:24:42,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:24:42,875 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 20:24:42,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:24:42,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 20:24:42,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:24:42,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:24:42,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:24:42,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:24:42,876 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 20:24:42,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:24:42,876 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:24:42,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:24:42,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:24:42,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:24:42,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:24:42,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:24:42,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:24:42,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:24:42,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:24:42,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:24:42,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 20:24:42,877 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:24:42,878 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:24:42,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:24:42,878 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:24:42,878 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_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 987a617ddfa597b9fd514ac45c30c05d0ba2d1aba473d81a379c621ee06eaca4 [2021-12-06 20:24:43,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:24:43,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:24:43,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:24:43,091 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:24:43,092 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:24:43,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-newlib/float_req_bl_0660b.c [2021-12-06 20:24:43,134 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/data/a9bcbaa9b/10bdcfeffee745149fc5686607626bc0/FLAGbcff0f39b [2021-12-06 20:24:43,523 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:24:43,523 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/sv-benchmarks/c/float-newlib/float_req_bl_0660b.c [2021-12-06 20:24:43,529 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/data/a9bcbaa9b/10bdcfeffee745149fc5686607626bc0/FLAGbcff0f39b [2021-12-06 20:24:43,538 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/data/a9bcbaa9b/10bdcfeffee745149fc5686607626bc0 [2021-12-06 20:24:43,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:24:43,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:24:43,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:24:43,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:24:43,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:24:43,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:24:43" (1/1) ... [2021-12-06 20:24:43,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d299c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:43, skipping insertion in model container [2021-12-06 20:24:43,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:24:43" (1/1) ... [2021-12-06 20:24:43,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:24:43,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:24:43,722 WARN L230 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_6406f522-ec4d-4807-9462-62adba3bca41/sv-benchmarks/c/float-newlib/float_req_bl_0660b.c[5271,5284] [2021-12-06 20:24:43,725 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:24:43,731 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:24:43,764 WARN L230 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_6406f522-ec4d-4807-9462-62adba3bca41/sv-benchmarks/c/float-newlib/float_req_bl_0660b.c[5271,5284] [2021-12-06 20:24:43,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:24:43,777 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:24:43,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:43 WrapperNode [2021-12-06 20:24:43,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:24:43,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:24:43,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:24:43,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:24:43,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:43" (1/1) ... [2021-12-06 20:24:43,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:43" (1/1) ... [2021-12-06 20:24:43,813 INFO L137 Inliner]: procedures = 19, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 218 [2021-12-06 20:24:43,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:24:43,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:24:43,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:24:43,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:24:43,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:43" (1/1) ... [2021-12-06 20:24:43,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:43" (1/1) ... [2021-12-06 20:24:43,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:43" (1/1) ... [2021-12-06 20:24:43,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:43" (1/1) ... [2021-12-06 20:24:43,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:43" (1/1) ... [2021-12-06 20:24:43,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:43" (1/1) ... [2021-12-06 20:24:43,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:43" (1/1) ... [2021-12-06 20:24:43,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:24:43,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:24:43,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:24:43,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:24:43,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:43" (1/1) ... [2021-12-06 20:24:43,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:24:43,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:24:43,873 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:24:43,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:24:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:24:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 20:24:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 20:24:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-06 20:24:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 20:24:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-06 20:24:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-12-06 20:24:43,904 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-12-06 20:24:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:24:43,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:24:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 20:24:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-06 20:24:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2021-12-06 20:24:43,905 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2021-12-06 20:24:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:24:43,978 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:24:43,980 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:24:44,250 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:24:44,256 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:24:44,256 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-12-06 20:24:44,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:24:44 BoogieIcfgContainer [2021-12-06 20:24:44,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:24:44,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:24:44,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:24:44,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:24:44,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:24:43" (1/3) ... [2021-12-06 20:24:44,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e1ac973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:24:44, skipping insertion in model container [2021-12-06 20:24:44,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:43" (2/3) ... [2021-12-06 20:24:44,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e1ac973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:24:44, skipping insertion in model container [2021-12-06 20:24:44,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:24:44" (3/3) ... [2021-12-06 20:24:44,264 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0660b.c [2021-12-06 20:24:44,268 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:24:44,268 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:24:44,308 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:24:44,313 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 [2021-12-06 20:24:44,314 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 20:24:44,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 84 states have (on average 1.6547619047619047) internal successors, (139), 85 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 20:24:44,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-06 20:24:44,330 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:24:44,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:24:44,331 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:24:44,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:24:44,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1457381495, now seen corresponding path program 1 times [2021-12-06 20:24:44,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:24:44,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210142167] [2021-12-06 20:24:44,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:24:44,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:24:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:24:44,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:24:44,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:24:44,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210142167] [2021-12-06 20:24:44,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210142167] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:24:44,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:24:44,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:24:44,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030678383] [2021-12-06 20:24:44,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:24:44,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 20:24:44,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:24:44,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 20:24:44,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 20:24:44,478 INFO L87 Difference]: Start difference. First operand has 92 states, 84 states have (on average 1.6547619047619047) internal successors, (139), 85 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:24:44,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:24:44,502 INFO L93 Difference]: Finished difference Result 181 states and 294 transitions. [2021-12-06 20:24:44,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 20:24:44,503 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-06 20:24:44,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:24:44,509 INFO L225 Difference]: With dead ends: 181 [2021-12-06 20:24:44,510 INFO L226 Difference]: Without dead ends: 88 [2021-12-06 20:24:44,512 INFO L932 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 [2021-12-06 20:24:44,515 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:24:44,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:24:44,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-12-06 20:24:44,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-12-06 20:24:44,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4691358024691359) internal successors, (119), 81 states have internal predecessors, (119), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 20:24:44,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 127 transitions. [2021-12-06 20:24:44,549 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 127 transitions. Word has length 11 [2021-12-06 20:24:44,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:24:44,549 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 127 transitions. [2021-12-06 20:24:44,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:24:44,550 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 127 transitions. [2021-12-06 20:24:44,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 20:24:44,550 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:24:44,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:24:44,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 20:24:44,551 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:24:44,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:24:44,552 INFO L85 PathProgramCache]: Analyzing trace with hash 413175488, now seen corresponding path program 1 times [2021-12-06 20:24:44,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:24:44,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634575013] [2021-12-06 20:24:44,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:24:44,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:24:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:24:44,613 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:24:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:24:44,661 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:24:44,661 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 20:24:44,662 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 20:24:44,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 20:24:44,666 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-06 20:24:44,669 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 20:24:44,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 08:24:44 BoogieIcfgContainer [2021-12-06 20:24:44,695 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 20:24:44,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:24:44,695 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:24:44,695 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:24:44,696 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:24:44" (3/4) ... [2021-12-06 20:24:44,698 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 20:24:44,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:24:44,699 INFO L158 Benchmark]: Toolchain (without parser) took 1157.85ms. Allocated memory is still 94.4MB. Free memory was 58.0MB in the beginning and 42.2MB in the end (delta: 15.7MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2021-12-06 20:24:44,699 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory was 74.5MB in the beginning and 74.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:24:44,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.51ms. Allocated memory is still 94.4MB. Free memory was 57.8MB in the beginning and 66.4MB in the end (delta: -8.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 20:24:44,700 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.96ms. Allocated memory is still 94.4MB. Free memory was 66.4MB in the beginning and 64.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:24:44,701 INFO L158 Benchmark]: Boogie Preprocessor took 31.28ms. Allocated memory is still 94.4MB. Free memory was 64.1MB in the beginning and 61.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:24:44,701 INFO L158 Benchmark]: RCFGBuilder took 412.78ms. Allocated memory is still 94.4MB. Free memory was 61.7MB in the beginning and 42.1MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-06 20:24:44,701 INFO L158 Benchmark]: TraceAbstraction took 435.60ms. Allocated memory is still 94.4MB. Free memory was 41.7MB in the beginning and 42.2MB in the end (delta: -475.4kB). Peak memory consumption was 847.9kB. Max. memory is 16.1GB. [2021-12-06 20:24:44,702 INFO L158 Benchmark]: Witness Printer took 3.00ms. Allocated memory is still 94.4MB. Free memory is still 42.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:24:44,704 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory was 74.5MB in the beginning and 74.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.51ms. Allocated memory is still 94.4MB. Free memory was 57.8MB in the beginning and 66.4MB in the end (delta: -8.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.96ms. Allocated memory is still 94.4MB. Free memory was 66.4MB in the beginning and 64.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.28ms. Allocated memory is still 94.4MB. Free memory was 64.1MB in the beginning and 61.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 412.78ms. Allocated memory is still 94.4MB. Free memory was 61.7MB in the beginning and 42.1MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 435.60ms. Allocated memory is still 94.4MB. Free memory was 41.7MB in the beginning and 42.2MB in the end (delta: -475.4kB). Peak memory consumption was 847.9kB. Max. memory is 16.1GB. * Witness Printer took 3.00ms. Allocated memory is still 94.4MB. Free memory is still 42.2MB. There was no memory consumed. Max. memory is 16.1GB. * 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: 233]: 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 232, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 135, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L218] float x = __VERIFIER_nondet_float(); [L219] float y = 0.0f; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, y=0, zero_atan2=0] [L226] COND TRUE x < 0.0f [L229] CALL, EXPR __ieee754_atan2f(y, x) [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=1000000000000000000000000000001, \old(y)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=0, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000001, \old(y)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=0, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000001, \old(y)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=0, hy=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=0, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [\old(x)=1000000000000000000000000000001, \old(y)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=0, hy=0, ix=2139095041, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=0, zero_atan2=0] [L229] RET, EXPR __ieee754_atan2f(y, x) [L229] float res = __ieee754_atan2f(y, x); [L232] COND TRUE res != pi VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=0, zero_atan2=0] [L233] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=0, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 132 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 132 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, 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=92occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2021-12-06 20:24:44,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0660b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa --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 987a617ddfa597b9fd514ac45c30c05d0ba2d1aba473d81a379c621ee06eaca4 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:24:46,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:24:46,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:24:46,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:24:46,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:24:46,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:24:46,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:24:46,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:24:46,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:24:46,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:24:46,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:24:46,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:24:46,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:24:46,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:24:46,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:24:46,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:24:46,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:24:46,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:24:46,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:24:46,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:24:46,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:24:46,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:24:46,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:24:46,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:24:46,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:24:46,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:24:46,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:24:46,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:24:46,390 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:24:46,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:24:46,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:24:46,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:24:46,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:24:46,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:24:46,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:24:46,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:24:46,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:24:46,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:24:46,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:24:46,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:24:46,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:24:46,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-06 20:24:46,418 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:24:46,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:24:46,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:24:46,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:24:46,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:24:46,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:24:46,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:24:46,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:24:46,420 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:24:46,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:24:46,421 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 20:24:46,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 20:24:46,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:24:46,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:24:46,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:24:46,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:24:46,422 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 20:24:46,422 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 20:24:46,422 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 20:24:46,422 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 20:24:46,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:24:46,422 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:24:46,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:24:46,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:24:46,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:24:46,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:24:46,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:24:46,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:24:46,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:24:46,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:24:46,424 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 20:24:46,424 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 20:24:46,424 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:24:46,424 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:24:46,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:24:46,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:24:46,424 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 20:24:46,425 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_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 987a617ddfa597b9fd514ac45c30c05d0ba2d1aba473d81a379c621ee06eaca4 [2021-12-06 20:24:46,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:24:46,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:24:46,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:24:46,660 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:24:46,660 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:24:46,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-newlib/float_req_bl_0660b.c [2021-12-06 20:24:46,703 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/data/001ab11dc/6776acf9910e4bd7abe50811556fe7f5/FLAG15201a9d8 [2021-12-06 20:24:47,121 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:24:47,122 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/sv-benchmarks/c/float-newlib/float_req_bl_0660b.c [2021-12-06 20:24:47,129 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/data/001ab11dc/6776acf9910e4bd7abe50811556fe7f5/FLAG15201a9d8 [2021-12-06 20:24:47,142 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/data/001ab11dc/6776acf9910e4bd7abe50811556fe7f5 [2021-12-06 20:24:47,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:24:47,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:24:47,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:24:47,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:24:47,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:24:47,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:24:47" (1/1) ... [2021-12-06 20:24:47,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c5e7efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:47, skipping insertion in model container [2021-12-06 20:24:47,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:24:47" (1/1) ... [2021-12-06 20:24:47,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:24:47,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:24:47,340 WARN L230 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_6406f522-ec4d-4807-9462-62adba3bca41/sv-benchmarks/c/float-newlib/float_req_bl_0660b.c[5271,5284] [2021-12-06 20:24:47,343 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:24:47,357 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:24:47,401 WARN L230 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_6406f522-ec4d-4807-9462-62adba3bca41/sv-benchmarks/c/float-newlib/float_req_bl_0660b.c[5271,5284] [2021-12-06 20:24:47,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:24:47,423 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:24:47,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:47 WrapperNode [2021-12-06 20:24:47,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:24:47,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:24:47,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:24:47,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:24:47,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:47" (1/1) ... [2021-12-06 20:24:47,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:47" (1/1) ... [2021-12-06 20:24:47,474 INFO L137 Inliner]: procedures = 22, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 219 [2021-12-06 20:24:47,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:24:47,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:24:47,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:24:47,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:24:47,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:47" (1/1) ... [2021-12-06 20:24:47,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:47" (1/1) ... [2021-12-06 20:24:47,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:47" (1/1) ... [2021-12-06 20:24:47,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:47" (1/1) ... [2021-12-06 20:24:47,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:47" (1/1) ... [2021-12-06 20:24:47,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:47" (1/1) ... [2021-12-06 20:24:47,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:47" (1/1) ... [2021-12-06 20:24:47,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:24:47,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:24:47,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:24:47,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:24:47,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:47" (1/1) ... [2021-12-06 20:24:47,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:24:47,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:24:47,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:24:47,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:24:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:24:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-12-06 20:24:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 20:24:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 20:24:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-06 20:24:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-12-06 20:24:47,581 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-12-06 20:24:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-06 20:24:47,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:24:47,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:24:47,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-06 20:24:47,582 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2021-12-06 20:24:47,582 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2021-12-06 20:24:47,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-06 20:24:47,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:24:47,664 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:24:47,666 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:24:56,806 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:24:56,812 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:24:56,812 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-12-06 20:24:56,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:24:56 BoogieIcfgContainer [2021-12-06 20:24:56,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:24:56,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:24:56,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:24:56,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:24:56,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:24:47" (1/3) ... [2021-12-06 20:24:56,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd42317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:24:56, skipping insertion in model container [2021-12-06 20:24:56,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:24:47" (2/3) ... [2021-12-06 20:24:56,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd42317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:24:56, skipping insertion in model container [2021-12-06 20:24:56,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:24:56" (3/3) ... [2021-12-06 20:24:56,824 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0660b.c [2021-12-06 20:24:56,830 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:24:56,830 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:24:56,867 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:24:56,872 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 [2021-12-06 20:24:56,873 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 20:24:56,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 84 states have (on average 1.6547619047619047) internal successors, (139), 85 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 20:24:56,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-06 20:24:56,888 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:24:56,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:24:56,889 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:24:56,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:24:56,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1457381495, now seen corresponding path program 1 times [2021-12-06 20:24:56,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:24:56,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144657460] [2021-12-06 20:24:56,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:24:56,903 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:24:56,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:24:56,904 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:24:56,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 20:24:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:24:57,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-06 20:24:57,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:24:57,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:24:57,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:24:57,817 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:24:57,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144657460] [2021-12-06 20:24:57,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144657460] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:24:57,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:24:57,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:24:57,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665880956] [2021-12-06 20:24:57,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:24:57,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 20:24:57,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:24:57,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 20:24:57,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 20:24:57,854 INFO L87 Difference]: Start difference. First operand has 92 states, 84 states have (on average 1.6547619047619047) internal successors, (139), 85 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:24:57,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:24:57,886 INFO L93 Difference]: Finished difference Result 181 states and 294 transitions. [2021-12-06 20:24:57,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 20:24:57,888 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-06 20:24:57,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:24:57,897 INFO L225 Difference]: With dead ends: 181 [2021-12-06 20:24:57,897 INFO L226 Difference]: Without dead ends: 88 [2021-12-06 20:24:57,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 20:24:57,904 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:24:57,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:24:57,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-12-06 20:24:57,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-12-06 20:24:57,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4691358024691359) internal successors, (119), 81 states have internal predecessors, (119), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 20:24:57,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 127 transitions. [2021-12-06 20:24:57,941 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 127 transitions. Word has length 11 [2021-12-06 20:24:57,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:24:57,941 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 127 transitions. [2021-12-06 20:24:57,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:24:57,941 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 127 transitions. [2021-12-06 20:24:57,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 20:24:57,942 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:24:57,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:24:57,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 20:24:58,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:24:58,143 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:24:58,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:24:58,145 INFO L85 PathProgramCache]: Analyzing trace with hash 413175488, now seen corresponding path program 1 times [2021-12-06 20:24:58,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:24:58,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172242911] [2021-12-06 20:24:58,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:24:58,149 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:24:58,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:24:58,152 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:24:58,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 20:24:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:24:59,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-06 20:24:59,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:24:59,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 20:24:59,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2021-12-06 20:24:59,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:24:59,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:24:59,877 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:24:59,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172242911] [2021-12-06 20:24:59,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172242911] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:24:59,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:24:59,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 20:24:59,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482062785] [2021-12-06 20:24:59,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:24:59,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 20:24:59,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:24:59,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 20:24:59,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:24:59,880 INFO L87 Difference]: Start difference. First operand 88 states and 127 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 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) [2021-12-06 20:25:00,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:25:00,085 INFO L93 Difference]: Finished difference Result 92 states and 130 transitions. [2021-12-06 20:25:00,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 20:25:00,086 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 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 13 [2021-12-06 20:25:00,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:25:00,087 INFO L225 Difference]: With dead ends: 92 [2021-12-06 20:25:00,087 INFO L226 Difference]: Without dead ends: 88 [2021-12-06 20:25:00,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:25:00,089 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 5 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:25:00,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 783 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 62 Unchecked, 0.0s Time] [2021-12-06 20:25:00,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-12-06 20:25:00,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-12-06 20:25:00,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4567901234567902) internal successors, (118), 81 states have internal predecessors, (118), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 20:25:00,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 126 transitions. [2021-12-06 20:25:00,099 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 126 transitions. Word has length 13 [2021-12-06 20:25:00,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:25:00,099 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 126 transitions. [2021-12-06 20:25:00,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 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) [2021-12-06 20:25:00,099 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 126 transitions. [2021-12-06 20:25:00,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-06 20:25:00,100 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:25:00,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:25:00,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 20:25:00,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:25:00,301 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:25:00,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:00,304 INFO L85 PathProgramCache]: Analyzing trace with hash -2003357637, now seen corresponding path program 1 times [2021-12-06 20:25:00,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:25:00,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725677173] [2021-12-06 20:25:00,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:00,307 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:25:00,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:25:00,309 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:25:00,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 20:25:01,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:01,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 20:25:01,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:25:01,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:25:01,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:25:01,553 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:25:01,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725677173] [2021-12-06 20:25:01,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [725677173] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:25:01,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:25:01,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 20:25:01,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399238332] [2021-12-06 20:25:01,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:25:01,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:25:01,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:25:01,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:25:01,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:25:01,555 INFO L87 Difference]: Start difference. First operand 88 states and 126 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-12-06 20:25:02,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:25:02,052 INFO L93 Difference]: Finished difference Result 160 states and 228 transitions. [2021-12-06 20:25:02,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:25:02,056 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 18 [2021-12-06 20:25:02,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:25:02,058 INFO L225 Difference]: With dead ends: 160 [2021-12-06 20:25:02,058 INFO L226 Difference]: Without dead ends: 92 [2021-12-06 20:25:02,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:25:02,059 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 16 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:25:02,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 588 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 9 Unchecked, 0.3s Time] [2021-12-06 20:25:02,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-12-06 20:25:02,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2021-12-06 20:25:02,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4444444444444444) internal successors, (117), 81 states have internal predecessors, (117), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 20:25:02,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 125 transitions. [2021-12-06 20:25:02,067 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 125 transitions. Word has length 18 [2021-12-06 20:25:02,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:25:02,067 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 125 transitions. [2021-12-06 20:25:02,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-12-06 20:25:02,067 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 125 transitions. [2021-12-06 20:25:02,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-06 20:25:02,068 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:25:02,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:25:02,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-06 20:25:02,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:25:02,270 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:25:02,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:02,272 INFO L85 PathProgramCache]: Analyzing trace with hash -106452547, now seen corresponding path program 1 times [2021-12-06 20:25:02,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:25:02,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338348575] [2021-12-06 20:25:02,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:02,274 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:25:02,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:25:02,275 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:25:02,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 20:25:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:03,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 20:25:03,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:25:03,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:25:03,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:25:03,444 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:25:03,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338348575] [2021-12-06 20:25:03,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338348575] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:25:03,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:25:03,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 20:25:03,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5272594] [2021-12-06 20:25:03,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:25:03,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:25:03,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:25:03,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:25:03,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:25:03,446 INFO L87 Difference]: Start difference. First operand 88 states and 125 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-12-06 20:25:03,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:25:03,826 INFO L93 Difference]: Finished difference Result 161 states and 232 transitions. [2021-12-06 20:25:03,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:25:03,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 18 [2021-12-06 20:25:03,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:25:03,828 INFO L225 Difference]: With dead ends: 161 [2021-12-06 20:25:03,828 INFO L226 Difference]: Without dead ends: 86 [2021-12-06 20:25:03,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:25:03,829 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 10 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:25:03,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 534 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 19 Unchecked, 0.3s Time] [2021-12-06 20:25:03,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-12-06 20:25:03,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-12-06 20:25:03,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 80 states have (on average 1.425) internal successors, (114), 80 states have internal predecessors, (114), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 20:25:03,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 120 transitions. [2021-12-06 20:25:03,836 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 120 transitions. Word has length 18 [2021-12-06 20:25:03,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:25:03,837 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 120 transitions. [2021-12-06 20:25:03,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-12-06 20:25:03,837 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 120 transitions. [2021-12-06 20:25:03,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-06 20:25:03,837 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:25:03,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:25:03,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-06 20:25:04,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:25:04,039 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:25:04,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:04,041 INFO L85 PathProgramCache]: Analyzing trace with hash -49194245, now seen corresponding path program 1 times [2021-12-06 20:25:04,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:25:04,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210876111] [2021-12-06 20:25:04,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:04,044 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:25:04,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:25:04,045 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:25:04,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 20:25:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:04,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 20:25:04,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:25:05,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:25:05,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:25:05,423 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:25:05,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210876111] [2021-12-06 20:25:05,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210876111] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:25:05,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:25:05,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 20:25:05,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835897311] [2021-12-06 20:25:05,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:25:05,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 20:25:05,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:25:05,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 20:25:05,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:25:05,425 INFO L87 Difference]: Start difference. First operand 86 states and 120 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-12-06 20:25:06,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:25:06,063 INFO L93 Difference]: Finished difference Result 90 states and 123 transitions. [2021-12-06 20:25:06,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 20:25:06,067 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 18 [2021-12-06 20:25:06,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:25:06,069 INFO L225 Difference]: With dead ends: 90 [2021-12-06 20:25:06,069 INFO L226 Difference]: Without dead ends: 86 [2021-12-06 20:25:06,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:25:06,070 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 16 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:25:06,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 636 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 19 Unchecked, 0.4s Time] [2021-12-06 20:25:06,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-12-06 20:25:06,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-12-06 20:25:06,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 80 states have (on average 1.4125) internal successors, (113), 80 states have internal predecessors, (113), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 20:25:06,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 119 transitions. [2021-12-06 20:25:06,076 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 119 transitions. Word has length 18 [2021-12-06 20:25:06,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:25:06,076 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 119 transitions. [2021-12-06 20:25:06,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-12-06 20:25:06,076 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 119 transitions. [2021-12-06 20:25:06,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-06 20:25:06,077 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:25:06,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:25:06,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-06 20:25:06,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:25:06,278 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:25:06,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:06,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1527794826, now seen corresponding path program 1 times [2021-12-06 20:25:06,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:25:06,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448274315] [2021-12-06 20:25:06,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:06,282 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:25:06,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:25:06,285 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:25:06,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 20:25:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:07,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:25:07,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:25:08,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:25:08,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:25:08,142 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:25:08,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448274315] [2021-12-06 20:25:08,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448274315] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:25:08,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:25:08,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:25:08,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037676744] [2021-12-06 20:25:08,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:25:08,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:25:08,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:25:08,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:25:08,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:25:08,144 INFO L87 Difference]: Start difference. First operand 86 states and 119 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2021-12-06 20:25:11,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:25:13,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:25:16,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:25:18,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:25:21,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:25:23,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:25:24,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:25:26,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:25:27,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 20:25:28,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:25:28,004 INFO L93 Difference]: Finished difference Result 93 states and 125 transitions. [2021-12-06 20:25:28,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:25:28,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2021-12-06 20:25:28,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:25:28,049 INFO L225 Difference]: With dead ends: 93 [2021-12-06 20:25:28,049 INFO L226 Difference]: Without dead ends: 89 [2021-12-06 20:25:28,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:25:28,050 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 99 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2021-12-06 20:25:28,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 255 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 4 Unknown, 0 Unchecked, 18.9s Time] [2021-12-06 20:25:28,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-12-06 20:25:28,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2021-12-06 20:25:28,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 80 states have (on average 1.3875) internal successors, (111), 80 states have internal predecessors, (111), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 20:25:28,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 117 transitions. [2021-12-06 20:25:28,057 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 117 transitions. Word has length 19 [2021-12-06 20:25:28,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:25:28,057 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 117 transitions. [2021-12-06 20:25:28,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2021-12-06 20:25:28,057 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 117 transitions. [2021-12-06 20:25:28,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-06 20:25:28,058 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:25:28,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:25:28,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 20:25:28,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:25:28,259 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:25:28,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:28,261 INFO L85 PathProgramCache]: Analyzing trace with hash -119623626, now seen corresponding path program 1 times [2021-12-06 20:25:28,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:25:28,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [331548681] [2021-12-06 20:25:28,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:28,263 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:25:28,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:25:28,266 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:25:28,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-06 20:25:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:29,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 20:25:29,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:25:30,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:25:30,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:25:30,238 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:25:30,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [331548681] [2021-12-06 20:25:30,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [331548681] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:25:30,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:25:30,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 20:25:30,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211174579] [2021-12-06 20:25:30,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:25:30,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 20:25:30,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:25:30,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 20:25:30,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:25:30,240 INFO L87 Difference]: Start difference. First operand 86 states and 117 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:25:30,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:25:30,595 INFO L93 Difference]: Finished difference Result 86 states and 117 transitions. [2021-12-06 20:25:30,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 20:25:30,595 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-06 20:25:30,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:25:30,595 INFO L225 Difference]: With dead ends: 86 [2021-12-06 20:25:30,596 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 20:25:30,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:25:30,597 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 15 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:25:30,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 36 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 12 Unchecked, 0.1s Time] [2021-12-06 20:25:30,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 20:25:30,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 20:25:30,598 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) [2021-12-06 20:25:30,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 20:25:30,599 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-12-06 20:25:30,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:25:30,599 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:25:30,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:25:30,599 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 20:25:30,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 20:25:30,601 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 20:25:30,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-06 20:25:30,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:25:30,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 20:25:31,251 INFO L858 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 14 27) no Hoare annotation was computed. [2021-12-06 20:25:31,251 INFO L858 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 14 27) no Hoare annotation was computed. [2021-12-06 20:25:31,251 INFO L861 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 14 27) the Hoare annotation is: true [2021-12-06 20:25:31,251 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2021-12-06 20:25:31,252 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2021-12-06 20:25:31,252 INFO L858 garLoopResultBuilder]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2021-12-06 20:25:31,252 INFO L858 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2021-12-06 20:25:31,252 INFO L861 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: true [2021-12-06 20:25:31,252 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-12-06 20:25:31,252 INFO L858 garLoopResultBuilder]: For program point L184-2(line 184) no Hoare annotation was computed. [2021-12-06 20:25:31,252 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 20:25:31,252 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 137) no Hoare annotation was computed. [2021-12-06 20:25:31,252 INFO L854 garLoopResultBuilder]: At program point L120(lines 120 215) the Hoare annotation is: (and (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (= (fp.add roundNearestTiesToEven ~pi~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000000000000000000000000000.0)))) |ULTIMATE.start___ieee754_atan2f_#res#1|) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 1000000000.0))) ~pi~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-12-06 20:25:31,252 INFO L858 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2021-12-06 20:25:31,252 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 179) no Hoare annotation was computed. [2021-12-06 20:25:31,253 INFO L858 garLoopResultBuilder]: For program point L203-1(lines 196 208) no Hoare annotation was computed. [2021-12-06 20:25:31,253 INFO L858 garLoopResultBuilder]: For program point L203-2(lines 203 207) no Hoare annotation was computed. [2021-12-06 20:25:31,253 INFO L858 garLoopResultBuilder]: For program point L187(lines 187 192) no Hoare annotation was computed. [2021-12-06 20:25:31,253 INFO L858 garLoopResultBuilder]: For program point L171(line 171) no Hoare annotation was computed. [2021-12-06 20:25:31,253 INFO L858 garLoopResultBuilder]: For program point L138(lines 138 139) no Hoare annotation was computed. [2021-12-06 20:25:31,253 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-12-06 20:25:31,253 INFO L858 garLoopResultBuilder]: For program point L155-2(line 155) no Hoare annotation was computed. [2021-12-06 20:25:31,253 INFO L861 garLoopResultBuilder]: At program point L238(lines 217 239) the Hoare annotation is: true [2021-12-06 20:25:31,253 INFO L854 garLoopResultBuilder]: At program point L139(line 139) the Hoare annotation is: false [2021-12-06 20:25:31,253 INFO L858 garLoopResultBuilder]: For program point L139-1(line 139) no Hoare annotation was computed. [2021-12-06 20:25:31,253 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 192) no Hoare annotation was computed. [2021-12-06 20:25:31,254 INFO L858 garLoopResultBuilder]: For program point L189-2(lines 187 192) no Hoare annotation was computed. [2021-12-06 20:25:31,254 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-12-06 20:25:31,254 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 20:25:31,254 INFO L858 garLoopResultBuilder]: For program point L157(lines 157 181) no Hoare annotation was computed. [2021-12-06 20:25:31,254 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 120 215) no Hoare annotation was computed. [2021-12-06 20:25:31,254 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 124 128) no Hoare annotation was computed. [2021-12-06 20:25:31,254 INFO L854 garLoopResultBuilder]: At program point L124-2(lines 124 128) the Hoare annotation is: (and (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (fp.lt |ULTIMATE.start___ieee754_atan2f_~x#1| (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_main_~y~0#1|) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 1000000000.0))) ~pi~0) (= (_ +zero 8 24) |ULTIMATE.start___ieee754_atan2f_~y#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-12-06 20:25:31,254 INFO L858 garLoopResultBuilder]: For program point L124-3(lines 124 128) no Hoare annotation was computed. [2021-12-06 20:25:31,254 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 180) no Hoare annotation was computed. [2021-12-06 20:25:31,254 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-12-06 20:25:31,254 INFO L858 garLoopResultBuilder]: For program point L142(lines 142 152) no Hoare annotation was computed. [2021-12-06 20:25:31,255 INFO L858 garLoopResultBuilder]: For program point L142-2(lines 120 215) no Hoare annotation was computed. [2021-12-06 20:25:31,255 INFO L854 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: false [2021-12-06 20:25:31,255 INFO L858 garLoopResultBuilder]: For program point L159(lines 159 168) no Hoare annotation was computed. [2021-12-06 20:25:31,255 INFO L854 garLoopResultBuilder]: At program point L192-1(line 192) the Hoare annotation is: false [2021-12-06 20:25:31,255 INFO L858 garLoopResultBuilder]: For program point L192-2(line 192) no Hoare annotation was computed. [2021-12-06 20:25:31,255 INFO L858 garLoopResultBuilder]: For program point L143(lines 143 151) no Hoare annotation was computed. [2021-12-06 20:25:31,255 INFO L858 garLoopResultBuilder]: For program point L226(lines 226 236) no Hoare annotation was computed. [2021-12-06 20:25:31,255 INFO L858 garLoopResultBuilder]: For program point L193(lines 193 214) no Hoare annotation was computed. [2021-12-06 20:25:31,255 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-12-06 20:25:31,255 INFO L858 garLoopResultBuilder]: For program point L226-2(lines 226 236) no Hoare annotation was computed. [2021-12-06 20:25:31,255 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 20:25:31,255 INFO L858 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2021-12-06 20:25:31,256 INFO L858 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-12-06 20:25:31,256 INFO L858 garLoopResultBuilder]: For program point L144(line 144) no Hoare annotation was computed. [2021-12-06 20:25:31,256 INFO L858 garLoopResultBuilder]: For program point L144-2(line 144) no Hoare annotation was computed. [2021-12-06 20:25:31,256 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-12-06 20:25:31,256 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-12-06 20:25:31,256 INFO L858 garLoopResultBuilder]: For program point L162(line 162) no Hoare annotation was computed. [2021-12-06 20:25:31,256 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-12-06 20:25:31,256 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-12-06 20:25:31,256 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2021-12-06 20:25:31,256 INFO L854 garLoopResultBuilder]: At program point L130-2(lines 130 134) the Hoare annotation is: (and (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (fp.lt |ULTIMATE.start___ieee754_atan2f_~x#1| (_ +zero 8 24)) (exists ((|v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6|) (_ bv0 32)))) (and (= (bvand (_ bv2147483647 32) .cse0) |ULTIMATE.start___ieee754_atan2f_~ix~2#1|) (fp.lt (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (_ +zero 8 24))))) (= (_ +zero 8 24) |ULTIMATE.start_main_~y~0#1|) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 1000000000.0))) ~pi~0) (fp.lt (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|)) (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start___ieee754_atan2f_~y#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-12-06 20:25:31,256 INFO L858 garLoopResultBuilder]: For program point L130-3(lines 130 134) no Hoare annotation was computed. [2021-12-06 20:25:31,257 INFO L858 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2021-12-06 20:25:31,257 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-12-06 20:25:31,257 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 20:25:31,257 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 233) no Hoare annotation was computed. [2021-12-06 20:25:31,257 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 198 202) no Hoare annotation was computed. [2021-12-06 20:25:31,257 INFO L854 garLoopResultBuilder]: At program point L198-2(lines 198 202) the Hoare annotation is: false [2021-12-06 20:25:31,257 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-12-06 20:25:31,257 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 235) no Hoare annotation was computed. [2021-12-06 20:25:31,257 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-12-06 20:25:31,257 INFO L858 garLoopResultBuilder]: For program point L233(line 233) no Hoare annotation was computed. [2021-12-06 20:25:31,257 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 65) no Hoare annotation was computed. [2021-12-06 20:25:31,258 INFO L861 garLoopResultBuilder]: At program point atan_floatENTRY(lines 53 115) the Hoare annotation is: true [2021-12-06 20:25:31,258 INFO L858 garLoopResultBuilder]: For program point atan_floatFINAL(lines 53 115) no Hoare annotation was computed. [2021-12-06 20:25:31,258 INFO L858 garLoopResultBuilder]: For program point L73(lines 73 74) no Hoare annotation was computed. [2021-12-06 20:25:31,258 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2021-12-06 20:25:31,258 INFO L861 garLoopResultBuilder]: At program point L57-2(lines 57 61) the Hoare annotation is: true [2021-12-06 20:25:31,258 INFO L858 garLoopResultBuilder]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2021-12-06 20:25:31,258 INFO L861 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: true [2021-12-06 20:25:31,258 INFO L858 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2021-12-06 20:25:31,258 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 69) no Hoare annotation was computed. [2021-12-06 20:25:31,258 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 95) no Hoare annotation was computed. [2021-12-06 20:25:31,258 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 96) no Hoare annotation was computed. [2021-12-06 20:25:31,258 INFO L858 garLoopResultBuilder]: For program point atan_floatEXIT(lines 53 115) no Hoare annotation was computed. [2021-12-06 20:25:31,259 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 70) no Hoare annotation was computed. [2021-12-06 20:25:31,259 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 94) no Hoare annotation was computed. [2021-12-06 20:25:31,259 INFO L858 garLoopResultBuilder]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2021-12-06 20:25:31,259 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-12-06 20:25:31,259 INFO L858 garLoopResultBuilder]: For program point L80(lines 80 86) no Hoare annotation was computed. [2021-12-06 20:25:31,259 INFO L858 garLoopResultBuilder]: For program point L113-2(line 113) no Hoare annotation was computed. [2021-12-06 20:25:31,259 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2021-12-06 20:25:31,259 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 75) no Hoare annotation was computed. [2021-12-06 20:25:31,259 INFO L858 garLoopResultBuilder]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2021-12-06 20:25:31,262 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:25:31,263 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 20:25:31,271 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,273 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,274 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,274 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,275 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,275 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,275 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,275 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,276 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,276 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,277 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-06 20:25:31,277 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-06 20:25:31,277 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-06 20:25:31,277 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-06 20:25:31,277 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,278 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-06 20:25:31,278 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-06 20:25:31,278 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-06 20:25:31,278 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-06 20:25:31,278 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 08:25:31 BoogieIcfgContainer [2021-12-06 20:25:31,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 20:25:31,280 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:25:31,280 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:25:31,280 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:25:31,280 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:24:56" (3/4) ... [2021-12-06 20:25:31,282 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 20:25:31,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2021-12-06 20:25:31,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2021-12-06 20:25:31,292 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-12-06 20:25:31,292 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-12-06 20:25:31,293 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-06 20:25:31,293 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 20:25:31,310 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp.lt~FLOAT(x, ~Pluszero~LONGDOUBLE())) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6 : bv32 :: ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32]) == ix && ~fp.lt~FLOAT(~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][22:0]), ~Pluszero~LONGDOUBLE()))) && ~Pluszero~LONGDOUBLE() == y) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == y) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-12-06 20:25:31,310 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp.add~FLOAT(~roundNearestTiesToEven, pi, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000))) == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-12-06 20:25:31,334 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 20:25:31,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:25:31,334 INFO L158 Benchmark]: Toolchain (without parser) took 44188.82ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 52.1MB in the beginning and 46.7MB in the end (delta: 5.4MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2021-12-06 20:25:31,335 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 71.3MB. Free memory was 51.5MB in the beginning and 51.4MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:25:31,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.78ms. Allocated memory is still 71.3MB. Free memory was 52.0MB in the beginning and 48.5MB in the end (delta: 3.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 20:25:31,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.51ms. Allocated memory is still 71.3MB. Free memory was 48.5MB in the beginning and 46.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:25:31,335 INFO L158 Benchmark]: Boogie Preprocessor took 50.66ms. Allocated memory is still 71.3MB. Free memory was 46.1MB in the beginning and 43.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:25:31,336 INFO L158 Benchmark]: RCFGBuilder took 9288.32ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 43.3MB in the beginning and 55.1MB in the end (delta: -11.8MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2021-12-06 20:25:31,336 INFO L158 Benchmark]: TraceAbstraction took 34461.86ms. Allocated memory is still 90.2MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 102.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:25:31,336 INFO L158 Benchmark]: Witness Printer took 54.41ms. Allocated memory is still 90.2MB. Free memory was 54.4MB in the beginning and 46.7MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 20:25:31,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 71.3MB. Free memory was 51.5MB in the beginning and 51.4MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.78ms. Allocated memory is still 71.3MB. Free memory was 52.0MB in the beginning and 48.5MB in the end (delta: 3.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.51ms. Allocated memory is still 71.3MB. Free memory was 48.5MB in the beginning and 46.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.66ms. Allocated memory is still 71.3MB. Free memory was 46.1MB in the beginning and 43.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 9288.32ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 43.3MB in the beginning and 55.1MB in the end (delta: -11.8MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * TraceAbstraction took 34461.86ms. Allocated memory is still 90.2MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 102.7kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 54.41ms. Allocated memory is still 90.2MB. Free memory was 54.4MB in the beginning and 46.7MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 233]: 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 3 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 34.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 22.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 20.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 161 mSDsluCounter, 2964 SdHoareTripleChecker+Invalid, 19.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 121 IncrementalHoareTripleChecker+Unchecked, 2265 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 164 IncrementalHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 699 mSDtfsCounter, 164 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 42 PreInvPairs, 46 NumberOfFragments, 133 HoareAnnotationTreeSize, 42 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 5.1s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 110 ConstructedInterpolants, 17 QuantifiedInterpolants, 1016 SizeOfPredicates, 44 NumberOfNonLiveVariables, 805 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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: 198]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 124]: Loop Invariant [2021-12-06 20:25:31,343 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,343 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp.lt~FLOAT(x, ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == y) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && ~Pluszero~LONGDOUBLE() == y) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 120]: Loop Invariant [2021-12-06 20:25:31,343 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,343 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,343 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,344 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,344 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,344 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,344 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,344 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp.add~FLOAT(~roundNearestTiesToEven, pi, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000))) == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant [2021-12-06 20:25:31,345 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-06 20:25:31,345 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-06 20:25:31,345 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-06 20:25:31,345 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-06 20:25:31,345 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 20:25:31,345 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-06 20:25:31,346 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-06 20:25:31,346 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-06 20:25:31,346 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-06 20:25:31,346 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp.lt~FLOAT(x, ~Pluszero~LONGDOUBLE())) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6 : bv32 :: ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32]) == ix && ~fp.lt~FLOAT(~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][22:0]), ~Pluszero~LONGDOUBLE()))) && ~Pluszero~LONGDOUBLE() == y) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == y) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2021-12-06 20:25:31,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6406f522-ec4d-4807-9462-62adba3bca41/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE