./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 93ec260cb84d051ded8af47768b754d2a933d99ce3d516511a560eef2f740c5a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:47:14,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:47:14,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:47:14,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:47:14,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:47:14,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:47:14,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:47:14,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:47:14,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:47:14,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:47:14,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:47:14,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:47:14,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:47:14,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:47:14,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:47:14,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:47:14,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:47:14,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:47:14,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:47:14,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:47:14,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:47:14,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:47:14,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:47:14,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:47:14,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:47:14,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:47:14,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:47:14,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:47:14,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:47:14,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:47:14,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:47:14,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:47:14,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:47:14,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:47:14,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:47:14,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:47:14,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:47:14,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:47:14,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:47:14,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:47:14,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:47:14,758 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:47:14,807 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:47:14,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:47:14,809 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:47:14,810 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:47:14,810 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:47:14,810 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:47:14,811 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:47:14,811 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:47:14,811 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:47:14,811 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:47:14,819 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:47:14,820 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:47:14,820 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:47:14,820 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:47:14,820 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:47:14,821 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:47:14,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:47:14,822 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:47:14,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:47:14,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:47:14,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:47:14,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:47:14,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:47:14,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:47:14,823 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:47:14,824 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:47:14,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:47:14,824 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:47:14,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:47:14,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:47:14,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:47:14,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:47:14,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:47:14,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:47:14,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:47:14,828 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:47:14,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:47:14,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:47:14,829 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:47:14,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:47:14,829 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93ec260cb84d051ded8af47768b754d2a933d99ce3d516511a560eef2f740c5a [2021-11-12 23:47:15,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:47:15,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:47:15,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:47:15,136 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:47:15,139 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:47:15,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2021-11-12 23:47:15,239 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/data/3a315c0a1/0476e3f9469a404fb04730c97f386f16/FLAGfb5042d8a [2021-11-12 23:47:15,706 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:47:15,707 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2021-11-12 23:47:15,714 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/data/3a315c0a1/0476e3f9469a404fb04730c97f386f16/FLAGfb5042d8a [2021-11-12 23:47:16,067 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/data/3a315c0a1/0476e3f9469a404fb04730c97f386f16 [2021-11-12 23:47:16,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:47:16,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:47:16,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:47:16,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:47:16,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:47:16,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:47:16" (1/1) ... [2021-11-12 23:47:16,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@320c747a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:16, skipping insertion in model container [2021-11-12 23:47:16,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:47:16" (1/1) ... [2021-11-12 23:47:16,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:47:16,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:47:16,336 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c[3196,3209] [2021-11-12 23:47:16,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:47:16,348 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:47:16,384 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c[3196,3209] [2021-11-12 23:47:16,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:47:16,404 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:47:16,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:16 WrapperNode [2021-11-12 23:47:16,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:47:16,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:47:16,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:47:16,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:47:16,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:16" (1/1) ... [2021-11-12 23:47:16,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:16" (1/1) ... [2021-11-12 23:47:16,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:47:16,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:47:16,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:47:16,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:47:16,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:16" (1/1) ... [2021-11-12 23:47:16,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:16" (1/1) ... [2021-11-12 23:47:16,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:16" (1/1) ... [2021-11-12 23:47:16,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:16" (1/1) ... [2021-11-12 23:47:16,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:16" (1/1) ... [2021-11-12 23:47:16,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:16" (1/1) ... [2021-11-12 23:47:16,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:16" (1/1) ... [2021-11-12 23:47:16,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:47:16,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:47:16,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:47:16,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:47:16,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:16" (1/1) ... [2021-11-12 23:47:16,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:47:16,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:47:16,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:47:16,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:47:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:47:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:47:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-12 23:47:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 23:47:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-12 23:47:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:47:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:47:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 23:47:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-12 23:47:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:47:17,034 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:47:17,038 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-12 23:47:17,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:47:17 BoogieIcfgContainer [2021-11-12 23:47:17,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:47:17,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:47:17,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:47:17,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:47:17,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:47:16" (1/3) ... [2021-11-12 23:47:17,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7674cceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:47:17, skipping insertion in model container [2021-11-12 23:47:17,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:16" (2/3) ... [2021-11-12 23:47:17,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7674cceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:47:17, skipping insertion in model container [2021-11-12 23:47:17,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:47:17" (3/3) ... [2021-11-12 23:47:17,051 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621a.c [2021-11-12 23:47:17,056 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:47:17,057 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:47:17,102 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:47:17,110 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:47:17,111 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:47:17,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:17,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 23:47:17,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:17,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:17,132 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:17,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:17,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1403492000, now seen corresponding path program 1 times [2021-11-12 23:47:17,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:47:17,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574972684] [2021-11-12 23:47:17,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:17,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:47:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:17,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:47:17,329 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:47:17,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574972684] [2021-11-12 23:47:17,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574972684] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:47:17,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:47:17,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 23:47:17,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347889056] [2021-11-12 23:47:17,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:17,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:47:17,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:47:17,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:47:17,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:47:17,373 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:17,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:17,421 INFO L93 Difference]: Finished difference Result 41 states and 61 transitions. [2021-11-12 23:47:17,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:47:17,424 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-12 23:47:17,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:17,431 INFO L225 Difference]: With dead ends: 41 [2021-11-12 23:47:17,432 INFO L226 Difference]: Without dead ends: 19 [2021-11-12 23:47:17,434 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 [2021-11-12 23:47:17,439 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.43ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.87ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:17,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 5 Unknown, 0 Unchecked, 1.43ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 28.87ms Time] [2021-11-12 23:47:17,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-12 23:47:17,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-12 23:47:17,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:17,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2021-11-12 23:47:17,473 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 7 [2021-11-12 23:47:17,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:17,473 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-11-12 23:47:17,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:17,474 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-11-12 23:47:17,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-12 23:47:17,474 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:17,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:17,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:47:17,508 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:17,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:17,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1572008545, now seen corresponding path program 1 times [2021-11-12 23:47:17,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:47:17,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888390274] [2021-11-12 23:47:17,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:17,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:47:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:47:17,628 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:47:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:47:17,735 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:47:17,736 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:47:17,738 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 23:47:17,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 23:47:17,743 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-12 23:47:17,746 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:47:17,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:47:17 BoogieIcfgContainer [2021-11-12 23:47:17,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:47:17,809 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:47:17,809 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:47:17,810 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:47:17,810 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:47:17" (3/4) ... [2021-11-12 23:47:17,813 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-12 23:47:17,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:47:17,814 INFO L158 Benchmark]: Toolchain (without parser) took 1742.95ms. Allocated memory is still 107.0MB. Free memory was 71.6MB in the beginning and 71.1MB in the end (delta: 463.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:47:17,816 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 73.4MB. Free memory was 46.9MB in the beginning and 46.9MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:47:17,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.15ms. Allocated memory is still 107.0MB. Free memory was 71.4MB in the beginning and 81.0MB in the end (delta: -9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:47:17,824 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.66ms. Allocated memory is still 107.0MB. Free memory was 80.9MB in the beginning and 78.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-12 23:47:17,825 INFO L158 Benchmark]: Boogie Preprocessor took 33.62ms. Allocated memory is still 107.0MB. Free memory was 78.4MB in the beginning and 76.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:47:17,825 INFO L158 Benchmark]: RCFGBuilder took 554.34ms. Allocated memory is still 107.0MB. Free memory was 76.7MB in the beginning and 59.5MB in the end (delta: 17.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-12 23:47:17,826 INFO L158 Benchmark]: TraceAbstraction took 762.42ms. Allocated memory is still 107.0MB. Free memory was 59.1MB in the beginning and 71.7MB in the end (delta: -12.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:47:17,826 INFO L158 Benchmark]: Witness Printer took 4.39ms. Allocated memory is still 107.0MB. Free memory was 71.7MB in the beginning and 71.1MB in the end (delta: 519.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:47:17,835 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 73.4MB. Free memory was 46.9MB in the beginning and 46.9MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.15ms. Allocated memory is still 107.0MB. Free memory was 71.4MB in the beginning and 81.0MB in the end (delta: -9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.66ms. Allocated memory is still 107.0MB. Free memory was 80.9MB in the beginning and 78.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.62ms. Allocated memory is still 107.0MB. Free memory was 78.4MB in the beginning and 76.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 554.34ms. Allocated memory is still 107.0MB. Free memory was 76.7MB in the beginning and 59.5MB in the end (delta: 17.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 762.42ms. Allocated memory is still 107.0MB. Free memory was 59.1MB in the beginning and 71.7MB in the end (delta: -12.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.39ms. Allocated memory is still 107.0MB. Free memory was 71.7MB in the beginning and 71.1MB in the end (delta: 519.4kB). 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: 133]: 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 132, overapproximation of someUnaryDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 67, overapproximation of someBinaryArithmeticFLOAToperation at line 70. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L34-L39] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L41-L46] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L48-L52] 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, }; [L54-L56] 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; [L129] float x = 1.0f / 0.0f; [L130] CALL, EXPR atan_float(x) [L59] float w, s1, s2, z; [L60] __int32_t ix, hx, id; VAL [\old(x)=1000000000000000000000000000004, aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=1000000000000000000000000000004] [L63] ieee_float_shape_type gf_u; [L64] gf_u.value = (x) [L65] EXPR gf_u.word [L65] (hx) = gf_u.word [L67] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000004, aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=1000000000000000000000000000004] [L68] COND TRUE ix >= 0x50800000 [L69] COND FALSE !(((ix) > 0x7f800000L)) [L71] COND FALSE !(hx > 0) [L74] EXPR atanhi_atan[3] [L74] EXPR atanlo_atan[3] [L74] return -atanhi_atan[3] - atanlo_atan[3]; [L130] RET, EXPR atan_float(x) [L130] float res = atan_float(x); [L132] COND TRUE res != pi_o_2 VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000003, x=1000000000000000000000000000004] [L133] reach_error() VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000003, x=1000000000000000000000000000004] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 28.87ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 25.08ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 19 mSDtfsCounter, 5 mSolverCounterSat, 1.43ms 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=21occurred 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, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-12 23:47:17,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/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_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 93ec260cb84d051ded8af47768b754d2a933d99ce3d516511a560eef2f740c5a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:47:20,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:47:20,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:47:20,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:47:20,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:47:20,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:47:20,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:47:20,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:47:20,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:47:20,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:47:20,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:47:20,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:47:20,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:47:20,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:47:20,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:47:20,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:47:20,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:47:20,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:47:20,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:47:20,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:47:20,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:47:20,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:47:20,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:47:20,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:47:20,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:47:20,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:47:20,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:47:20,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:47:20,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:47:20,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:47:20,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:47:20,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:47:20,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:47:20,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:47:20,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:47:20,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:47:20,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:47:20,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:47:20,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:47:20,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:47:20,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:47:20,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 23:47:20,453 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:47:20,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:47:20,455 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:47:20,455 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:47:20,455 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:47:20,456 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:47:20,456 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:47:20,456 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:47:20,457 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:47:20,457 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:47:20,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:47:20,459 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:47:20,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:47:20,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:47:20,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:47:20,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:47:20,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:47:20,460 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:47:20,460 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:47:20,461 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:47:20,461 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:47:20,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:47:20,461 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:47:20,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:47:20,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:47:20,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:47:20,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:47:20,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:47:20,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:47:20,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:47:20,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:47:20,463 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:47:20,463 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:47:20,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:47:20,464 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:47:20,464 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:47:20,464 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_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93ec260cb84d051ded8af47768b754d2a933d99ce3d516511a560eef2f740c5a [2021-11-12 23:47:20,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:47:20,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:47:20,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:47:20,894 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:47:20,895 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:47:20,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2021-11-12 23:47:20,961 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/data/e50a93dde/3305564861d84c65a2c1c781840043b6/FLAG2cbf23508 [2021-11-12 23:47:21,456 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:47:21,459 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2021-11-12 23:47:21,469 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/data/e50a93dde/3305564861d84c65a2c1c781840043b6/FLAG2cbf23508 [2021-11-12 23:47:21,814 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/data/e50a93dde/3305564861d84c65a2c1c781840043b6 [2021-11-12 23:47:21,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:47:21,818 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:47:21,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:47:21,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:47:21,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:47:21,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:47:21" (1/1) ... [2021-11-12 23:47:21,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dd9c197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:21, skipping insertion in model container [2021-11-12 23:47:21,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:47:21" (1/1) ... [2021-11-12 23:47:21,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:47:21,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:47:22,020 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c[3196,3209] [2021-11-12 23:47:22,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:47:22,058 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:47:22,138 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c[3196,3209] [2021-11-12 23:47:22,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:47:22,161 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:47:22,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:22 WrapperNode [2021-11-12 23:47:22,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:47:22,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:47:22,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:47:22,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:47:22,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:22" (1/1) ... [2021-11-12 23:47:22,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:22" (1/1) ... [2021-11-12 23:47:22,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:47:22,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:47:22,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:47:22,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:47:22,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:22" (1/1) ... [2021-11-12 23:47:22,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:22" (1/1) ... [2021-11-12 23:47:22,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:22" (1/1) ... [2021-11-12 23:47:22,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:22" (1/1) ... [2021-11-12 23:47:22,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:22" (1/1) ... [2021-11-12 23:47:22,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:22" (1/1) ... [2021-11-12 23:47:22,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:22" (1/1) ... [2021-11-12 23:47:22,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:47:22,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:47:22,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:47:22,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:47:22,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:22" (1/1) ... [2021-11-12 23:47:22,260 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:47:22,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:47:22,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:47:22,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:47:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-12 23:47:22,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:47:22,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:47:22,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-12 23:47:22,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:47:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:47:22,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:47:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-12 23:47:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:47:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:47:33,570 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:47:33,571 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-12 23:47:33,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:47:33 BoogieIcfgContainer [2021-11-12 23:47:33,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:47:33,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:47:33,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:47:33,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:47:33,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:47:21" (1/3) ... [2021-11-12 23:47:33,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c54d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:47:33, skipping insertion in model container [2021-11-12 23:47:33,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:47:22" (2/3) ... [2021-11-12 23:47:33,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c54d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:47:33, skipping insertion in model container [2021-11-12 23:47:33,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:47:33" (3/3) ... [2021-11-12 23:47:33,582 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621a.c [2021-11-12 23:47:33,588 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:47:33,588 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:47:33,639 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:47:33,646 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:47:33,647 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:47:33,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 31 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:33,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-12 23:47:33,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:33,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:33,668 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:33,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:33,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1906423550, now seen corresponding path program 1 times [2021-11-12 23:47:33,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:33,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140709474] [2021-11-12 23:47:33,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:33,688 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:33,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:33,690 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:33,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:47:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:34,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:47:34,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:34,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:47:34,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:34,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:47:34,715 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:34,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140709474] [2021-11-12 23:47:34,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140709474] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:47:34,716 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:47:34,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 23:47:34,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452973676] [2021-11-12 23:47:34,719 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:34,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:47:34,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:34,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:47:34,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:47:34,761 INFO L87 Difference]: Start difference. First operand has 32 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 31 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:34,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:34,777 INFO L93 Difference]: Finished difference Result 62 states and 96 transitions. [2021-11-12 23:47:34,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:47:34,780 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-12 23:47:34,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:34,788 INFO L225 Difference]: With dead ends: 62 [2021-11-12 23:47:34,788 INFO L226 Difference]: Without dead ends: 29 [2021-11-12 23:47:34,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:47:34,795 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.76ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:34,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.76ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:47:34,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-12 23:47:34,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-11-12 23:47:34,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 28 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:34,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2021-11-12 23:47:34,827 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 9 [2021-11-12 23:47:34,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:34,827 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2021-11-12 23:47:34,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:34,828 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2021-11-12 23:47:34,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-12 23:47:34,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:34,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:34,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:35,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:35,043 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:35,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:35,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1481927263, now seen corresponding path program 1 times [2021-11-12 23:47:35,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:35,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363013934] [2021-11-12 23:47:35,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:35,049 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:35,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:35,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:35,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:47:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:35,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:47:35,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:36,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:47:36,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:36,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:47:36,751 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:36,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363013934] [2021-11-12 23:47:36,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363013934] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:47:36,752 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:47:36,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:47:36,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943895079] [2021-11-12 23:47:36,753 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:36,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:47:36,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:36,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:47:36,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:47:36,755 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:38,350 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 23:47:41,206 WARN L515 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 [] [2021-11-12 23:47:41,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:41,208 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2021-11-12 23:47:41,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:47:41,254 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-12 23:47:41,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:41,255 INFO L225 Difference]: With dead ends: 41 [2021-11-12 23:47:41,255 INFO L226 Difference]: Without dead ends: 37 [2021-11-12 23:47:41,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:47:41,257 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 15 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4307.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.13ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 4436.58ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:41,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 111 Invalid, 42 Unknown, 0 Unchecked, 2.13ms Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 1 Unknown, 23 Unchecked, 4436.58ms Time] [2021-11-12 23:47:41,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-12 23:47:41,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2021-11-12 23:47:41,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 28 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:41,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2021-11-12 23:47:41,261 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 10 [2021-11-12 23:47:41,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:41,262 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2021-11-12 23:47:41,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:41,262 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2021-11-12 23:47:41,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 23:47:41,262 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:41,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:41,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:41,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:41,463 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:41,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:41,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1305404355, now seen corresponding path program 1 times [2021-11-12 23:47:41,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:41,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924285010] [2021-11-12 23:47:41,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:41,465 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:41,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:41,466 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:41,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:47:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:42,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 23:47:42,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:43,659 INFO L354 Elim1Store]: treesize reduction 350, result has 15.7 percent of original size [2021-11-12 23:47:43,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 70 [2021-11-12 23:47:47,418 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-12 23:47:47,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 75 [2021-11-12 23:47:47,552 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-12 23:47:47,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 88 [2021-11-12 23:47:48,101 INFO L354 Elim1Store]: treesize reduction 7, result has 56.3 percent of original size [2021-11-12 23:47:48,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 54 [2021-11-12 23:47:49,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:47:49,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:54,394 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 32)) (|v_ULTIMATE.start_atan_float_~#gf_u~1#1.base_8| (_ BitVec 32))) (or (fp.eq (let ((.cse1 (store |c_#memory_int| |v_ULTIMATE.start_atan_float_~#gf_u~1#1.base_8| (store (select |c_#memory_int| |v_ULTIMATE.start_atan_float_~#gf_u~1#1.base_8|) (_ bv0 32) |v_skolemized_q#valueAsBitvector_8|)))) (fp.add c_currentRoundingMode (let ((.cse0 (select (select .cse1 |c_~#atanhi_atan~0.base|) (bvadd |c_~#atanhi_atan~0.offset| (_ bv12 32))))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse2 (select (select .cse1 |c_~#atanlo_atan~0.base|) (bvadd |c_~#atanlo_atan~0.offset| (_ bv12 32))))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) c_~pi_o_2~0) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_atan_float_~#gf_u~1#1.base_8|))))) is different from false [2021-11-12 23:47:54,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:47:54,950 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:54,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924285010] [2021-11-12 23:47:54,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924285010] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:47:54,950 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:47:54,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-12 23:47:54,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131754802] [2021-11-12 23:47:54,951 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:54,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:47:54,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:54,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:47:54,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=53, Unknown=1, NotChecked=14, Total=90 [2021-11-12 23:47:54,952 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:59,379 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:48:01,599 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:48:03,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:48:06,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:48:08,083 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:48:09,993 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:48:13,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:48:13,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:13,100 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2021-11-12 23:48:13,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:48:13,141 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-12 23:48:13,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:13,142 INFO L225 Difference]: With dead ends: 35 [2021-11-12 23:48:13,142 INFO L226 Difference]: Without dead ends: 31 [2021-11-12 23:48:13,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=29, Invalid=64, Unknown=1, NotChecked=16, Total=110 [2021-11-12 23:48:13,144 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 24 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16272.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.60ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 16619.15ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:13,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 78 Invalid, 78 Unknown, 0 Unchecked, 2.60ms Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 5 Unknown, 29 Unchecked, 16619.15ms Time] [2021-11-12 23:48:13,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-12 23:48:13,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2021-11-12 23:48:13,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 28 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:48:13,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2021-11-12 23:48:13,151 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 11 [2021-11-12 23:48:13,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:13,152 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 37 transitions. [2021-11-12 23:48:13,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:48:13,152 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2021-11-12 23:48:13,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 23:48:13,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:13,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:48:13,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:48:13,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:13,365 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:48:13,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:13,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1305344773, now seen corresponding path program 1 times [2021-11-12 23:48:13,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:48:13,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1039985645] [2021-11-12 23:48:13,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:13,366 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:48:13,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:48:13,368 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:48:13,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:48:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:48:14,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:48:14,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:14,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:48:14,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:14,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:48:14,683 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:14,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1039985645] [2021-11-12 23:48:14,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1039985645] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:48:14,684 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:48:14,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 23:48:14,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3485897] [2021-11-12 23:48:14,685 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:48:14,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:48:14,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:48:14,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:48:14,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:48:14,687 INFO L87 Difference]: Start difference. First operand 29 states and 37 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) [2021-11-12 23:48:14,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:14,703 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2021-11-12 23:48:14,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:48:14,704 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 11 [2021-11-12 23:48:14,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:14,705 INFO L225 Difference]: With dead ends: 37 [2021-11-12 23:48:14,705 INFO L226 Difference]: Without dead ends: 31 [2021-11-12 23:48:14,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:48:14,707 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 52 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.26ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 9.71ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:14,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 77 Invalid, 27 Unknown, 0 Unchecked, 1.26ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 26 Unchecked, 9.71ms Time] [2021-11-12 23:48:14,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-12 23:48:14,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2021-11-12 23:48:14,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:48:14,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2021-11-12 23:48:14,714 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 11 [2021-11-12 23:48:14,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:14,714 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2021-11-12 23:48:14,715 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) [2021-11-12 23:48:14,715 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2021-11-12 23:48:14,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-12 23:48:14,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:14,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:48:14,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:48:14,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:14,935 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:48:14,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:14,936 INFO L85 PathProgramCache]: Analyzing trace with hash 540837948, now seen corresponding path program 1 times [2021-11-12 23:48:14,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:48:14,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997217349] [2021-11-12 23:48:14,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:14,937 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:48:14,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:48:14,937 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:48:14,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:48:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:48:15,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:48:15,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:16,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:48:16,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:16,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:48:16,535 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:16,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997217349] [2021-11-12 23:48:16,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997217349] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:48:16,536 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:48:16,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:48:16,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699275935] [2021-11-12 23:48:16,536 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:48:16,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:48:16,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:48:16,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:48:16,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:48:16,538 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:48:16,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:16,554 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2021-11-12 23:48:16,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:48:16,555 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-12 23:48:16,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:16,555 INFO L225 Difference]: With dead ends: 27 [2021-11-12 23:48:16,556 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 23:48:16,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:48:16,558 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 12.86ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:16,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 4 Unknown, 0 Unchecked, 0.17ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 2 Unchecked, 12.86ms Time] [2021-11-12 23:48:16,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 23:48:16,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 23:48:16,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:48:16,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 23:48:16,560 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-11-12 23:48:16,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:16,561 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 23:48:16,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:48:16,561 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 23:48:16,561 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 23:48:16,564 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 23:48:16,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-12 23:48:16,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:16,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-12 23:48:17,336 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-11-12 23:48:17,337 INFO L858 garLoopResultBuilder]: For program point L93-2(lines 76 101) no Hoare annotation was computed. [2021-11-12 23:48:17,337 INFO L858 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-11-12 23:48:17,337 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2021-11-12 23:48:17,337 INFO L858 garLoopResultBuilder]: For program point L118-2(line 118) no Hoare annotation was computed. [2021-11-12 23:48:17,337 INFO L854 garLoopResultBuilder]: At program point L118-3(lines 58 120) the Hoare annotation is: (and (exists ((v_arrayElimCell_7 (_ BitVec 32)) (v_arrayElimCell_6 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_7) ((_ extract 30 23) v_arrayElimCell_7) ((_ extract 22 0) v_arrayElimCell_7))) (.cse0 (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 75497894159.0 1000000000000000000.0))) .cse0) (= .cse1 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 15707962513.0 10000000000.0)))) (= |ULTIMATE.start_atan_float_#res#1| (fp.add roundNearestTiesToEven .cse1 .cse0))))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 75497894159.0 1000000000000000000.0))) (let ((.cse2 (select (select |#memory_int| |~#atanlo_atan~0.base|) (bvadd |~#atanlo_atan~0.offset| (_ bv12 32))))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |#valid| |~#atanlo_atan~0.base|))) (_ bv1 1))) (= ~pi_o_2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 2000000000.0)))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 15707962513.0 10000000000.0))) (let ((.cse3 (select (select |#memory_int| |~#atanhi_atan~0.base|) (bvadd |~#atanhi_atan~0.offset| (_ bv12 32))))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3)))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |#valid| |~#atanhi_atan~0.base|))) (_ bv1 1)))) [2021-11-12 23:48:17,338 INFO L858 garLoopResultBuilder]: For program point L77(lines 77 80) no Hoare annotation was computed. [2021-11-12 23:48:17,338 INFO L858 garLoopResultBuilder]: For program point L77-2(lines 77 80) no Hoare annotation was computed. [2021-11-12 23:48:17,338 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 70) no Hoare annotation was computed. [2021-11-12 23:48:17,338 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-12 23:48:17,339 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-12 23:48:17,339 INFO L858 garLoopResultBuilder]: For program point L78(lines 78 79) no Hoare annotation was computed. [2021-11-12 23:48:17,339 INFO L858 garLoopResultBuilder]: For program point L62-1(lines 62 66) no Hoare annotation was computed. [2021-11-12 23:48:17,339 INFO L854 garLoopResultBuilder]: At program point L62-2(lines 62 66) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_atan_float_~x#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 75497894159.0 1000000000000000000.0))) (let ((.cse0 (select (select |#memory_int| |~#atanlo_atan~0.base|) (bvadd |~#atanlo_atan~0.offset| (_ bv12 32))))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |#valid| |~#atanlo_atan~0.base|))) (_ bv1 1))) (= ~pi_o_2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 2000000000.0)))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 15707962513.0 10000000000.0))) (let ((.cse1 (select (select |#memory_int| |~#atanhi_atan~0.base|) (bvadd |~#atanhi_atan~0.offset| (_ bv12 32))))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |#valid| |~#atanhi_atan~0.base|))) (_ bv1 1)))) [2021-11-12 23:48:17,340 INFO L858 garLoopResultBuilder]: For program point L62-3(lines 62 66) no Hoare annotation was computed. [2021-11-12 23:48:17,340 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-11-12 23:48:17,340 INFO L854 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2021-11-12 23:48:17,340 INFO L861 garLoopResultBuilder]: At program point L137(lines 122 138) the Hoare annotation is: true [2021-11-12 23:48:17,340 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 74) no Hoare annotation was computed. [2021-11-12 23:48:17,341 INFO L854 garLoopResultBuilder]: At program point L31(lines 19 32) the Hoare annotation is: false [2021-11-12 23:48:17,341 INFO L858 garLoopResultBuilder]: For program point L114(lines 114 119) no Hoare annotation was computed. [2021-11-12 23:48:17,341 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-12 23:48:17,341 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 133) no Hoare annotation was computed. [2021-11-12 23:48:17,342 INFO L858 garLoopResultBuilder]: For program point L132(lines 132 135) no Hoare annotation was computed. [2021-11-12 23:48:17,342 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-12 23:48:17,342 INFO L858 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-11-12 23:48:17,342 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-11-12 23:48:17,342 INFO L858 garLoopResultBuilder]: For program point L26-1(lines 19 32) no Hoare annotation was computed. [2021-11-12 23:48:17,343 INFO L858 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2021-11-12 23:48:17,343 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 100) no Hoare annotation was computed. [2021-11-12 23:48:17,343 INFO L858 garLoopResultBuilder]: For program point L76(lines 76 101) no Hoare annotation was computed. [2021-11-12 23:48:17,343 INFO L858 garLoopResultBuilder]: For program point L68(lines 68 75) no Hoare annotation was computed. [2021-11-12 23:48:17,347 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-12 23:48:17,349 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:48:17,359 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,360 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,361 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,361 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,361 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,361 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,362 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,362 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,362 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,362 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,363 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,363 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,363 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,363 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,364 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,364 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,364 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,365 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,387 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,387 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,387 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,387 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,387 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,388 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,388 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,388 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,388 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,390 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,390 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,390 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,391 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,391 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,391 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,391 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,391 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,396 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,402 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-12 23:48:17,404 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-12 23:48:17,405 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,406 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-12 23:48:17,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-12 23:48:17,413 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:48:17 BoogieIcfgContainer [2021-11-12 23:48:17,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:48:17,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:48:17,416 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:48:17,416 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:48:17,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:47:33" (3/4) ... [2021-11-12 23:48:17,419 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 23:48:17,434 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-11-12 23:48:17,435 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-12 23:48:17,435 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-12 23:48:17,435 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 23:48:17,458 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 75497894159/1000000000000000000)) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[atanlo_atan][~bvadd64(atanlo_atan, 12bv32)][31:31], unknown-#memory_int-unknown[atanlo_atan][~bvadd64(atanlo_atan, 12bv32)][30:23], unknown-#memory_int-unknown[atanlo_atan][~bvadd64(atanlo_atan, 12bv32)][22:0])) && 0bv1 == ~bvadd64(~bvneg32(~bvneg32(\valid[atanlo_atan])), 1bv1)) && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/2000000000))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 15707962513/10000000000)) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[atanhi_atan][~bvadd64(atanhi_atan, 12bv32)][31:31], unknown-#memory_int-unknown[atanhi_atan][~bvadd64(atanhi_atan, 12bv32)][30:23], unknown-#memory_int-unknown[atanhi_atan][~bvadd64(atanhi_atan, 12bv32)][22:0])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 0bv1 == ~bvadd64(~bvneg32(~bvneg32(\valid[atanhi_atan])), 1bv1) [2021-11-12 23:48:17,459 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists v_arrayElimCell_7 : bv32, v_arrayElimCell_6 : bv32 :: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 75497894159/1000000000000000000)) == ~fp~LONGDOUBLE(v_arrayElimCell_6[31:31], v_arrayElimCell_6[30:23], v_arrayElimCell_6[22:0]) && ~fp~LONGDOUBLE(v_arrayElimCell_7[31:31], v_arrayElimCell_7[30:23], v_arrayElimCell_7[22:0]) == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 15707962513/10000000000))) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp~LONGDOUBLE(v_arrayElimCell_7[31:31], v_arrayElimCell_7[30:23], v_arrayElimCell_7[22:0]), ~fp~LONGDOUBLE(v_arrayElimCell_6[31:31], v_arrayElimCell_6[30:23], v_arrayElimCell_6[22:0]))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 75497894159/1000000000000000000)) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[atanlo_atan][~bvadd64(atanlo_atan, 12bv32)][31:31], unknown-#memory_int-unknown[atanlo_atan][~bvadd64(atanlo_atan, 12bv32)][30:23], unknown-#memory_int-unknown[atanlo_atan][~bvadd64(atanlo_atan, 12bv32)][22:0])) && 0bv1 == ~bvadd64(~bvneg32(~bvneg32(\valid[atanlo_atan])), 1bv1)) && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/2000000000))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 15707962513/10000000000)) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[atanhi_atan][~bvadd64(atanhi_atan, 12bv32)][31:31], unknown-#memory_int-unknown[atanhi_atan][~bvadd64(atanhi_atan, 12bv32)][30:23], unknown-#memory_int-unknown[atanhi_atan][~bvadd64(atanhi_atan, 12bv32)][22:0])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 0bv1 == ~bvadd64(~bvneg32(~bvneg32(\valid[atanhi_atan])), 1bv1) [2021-11-12 23:48:17,499 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 23:48:17,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:48:17,500 INFO L158 Benchmark]: Toolchain (without parser) took 55681.71ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 42.6MB in the beginning and 39.6MB in the end (delta: 3.0MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2021-11-12 23:48:17,500 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 62.9MB. Free memory is still 44.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:48:17,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.96ms. Allocated memory is still 62.9MB. Free memory was 42.5MB in the beginning and 43.4MB in the end (delta: -933.9kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-12 23:48:17,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.75ms. Allocated memory is still 62.9MB. Free memory was 43.4MB in the beginning and 41.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:48:17,502 INFO L158 Benchmark]: Boogie Preprocessor took 39.00ms. Allocated memory is still 62.9MB. Free memory was 41.1MB in the beginning and 39.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:48:17,502 INFO L158 Benchmark]: RCFGBuilder took 11320.73ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 39.0MB in the beginning and 49.9MB in the end (delta: -10.8MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2021-11-12 23:48:17,503 INFO L158 Benchmark]: TraceAbstraction took 43839.69ms. Allocated memory is still 75.5MB. Free memory was 49.6MB in the beginning and 44.9MB in the end (delta: 4.6MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-11-12 23:48:17,503 INFO L158 Benchmark]: Witness Printer took 84.12ms. Allocated memory is still 75.5MB. Free memory was 44.4MB in the beginning and 39.6MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-12 23:48:17,507 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 62.9MB. Free memory is still 44.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.96ms. Allocated memory is still 62.9MB. Free memory was 42.5MB in the beginning and 43.4MB in the end (delta: -933.9kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.75ms. Allocated memory is still 62.9MB. Free memory was 43.4MB in the beginning and 41.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.00ms. Allocated memory is still 62.9MB. Free memory was 41.1MB in the beginning and 39.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 11320.73ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 39.0MB in the beginning and 49.9MB in the end (delta: -10.8MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * TraceAbstraction took 43839.69ms. Allocated memory is still 75.5MB. Free memory was 49.6MB in the beginning and 44.9MB in the end (delta: 4.6MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Witness Printer took 84.12ms. Allocated memory is still 75.5MB. Free memory was 44.4MB in the beginning and 39.6MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_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[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 133]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 43.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 22.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 91 SdHoareTripleChecker+Valid, 21078.29ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 91 mSDsluCounter, 318 SdHoareTripleChecker+Invalid, 20601.89ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 80 IncrementalHoareTripleChecker+Unchecked, 185 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 57 IncrementalHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 133 mSDtfsCounter, 57 mSolverCounterSat, 6.92ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 240 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 14.8s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 96 ConstructedInterpolants, 22 QuantifiedInterpolants, 1525 SizeOfPredicates, 36 NumberOfNonLiveVariables, 481 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 58]: Loop Invariant [2021-11-12 23:48:17,535 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,535 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,535 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,536 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,536 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,536 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,536 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,536 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,537 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,537 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,537 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,537 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,537 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,538 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,538 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,538 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,539 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,540 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,542 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,542 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,543 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,543 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,543 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,543 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,543 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,543 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,544 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,544 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,544 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,544 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,544 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,545 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_7,QUANTIFIED] [2021-11-12 23:48:17,545 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,545 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,545 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_6,QUANTIFIED] [2021-11-12 23:48:17,553 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((\exists v_arrayElimCell_7 : bv32, v_arrayElimCell_6 : bv32 :: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 75497894159/1000000000000000000)) == ~fp~LONGDOUBLE(v_arrayElimCell_6[31:31], v_arrayElimCell_6[30:23], v_arrayElimCell_6[22:0]) && ~fp~LONGDOUBLE(v_arrayElimCell_7[31:31], v_arrayElimCell_7[30:23], v_arrayElimCell_7[22:0]) == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 15707962513/10000000000))) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp~LONGDOUBLE(v_arrayElimCell_7[31:31], v_arrayElimCell_7[30:23], v_arrayElimCell_7[22:0]), ~fp~LONGDOUBLE(v_arrayElimCell_6[31:31], v_arrayElimCell_6[30:23], v_arrayElimCell_6[22:0]))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 75497894159/1000000000000000000)) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[atanlo_atan][~bvadd64(atanlo_atan, 12bv32)][31:31], unknown-#memory_int-unknown[atanlo_atan][~bvadd64(atanlo_atan, 12bv32)][30:23], unknown-#memory_int-unknown[atanlo_atan][~bvadd64(atanlo_atan, 12bv32)][22:0])) && 0bv1 == ~bvadd64(~bvneg32(~bvneg32(\valid[atanlo_atan])), 1bv1)) && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/2000000000))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 15707962513/10000000000)) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[atanhi_atan][~bvadd64(atanhi_atan, 12bv32)][31:31], unknown-#memory_int-unknown[atanhi_atan][~bvadd64(atanhi_atan, 12bv32)][30:23], unknown-#memory_int-unknown[atanhi_atan][~bvadd64(atanhi_atan, 12bv32)][22:0])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 0bv1 == ~bvadd64(~bvneg32(~bvneg32(\valid[atanhi_atan])), 1bv1) - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 62]: Loop Invariant [2021-11-12 23:48:17,557 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-12 23:48:17,557 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-12 23:48:17,558 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:48:17,558 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-12 23:48:17,560 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-12 23:48:17,566 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 75497894159/1000000000000000000)) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[atanlo_atan][~bvadd64(atanlo_atan, 12bv32)][31:31], unknown-#memory_int-unknown[atanlo_atan][~bvadd64(atanlo_atan, 12bv32)][30:23], unknown-#memory_int-unknown[atanlo_atan][~bvadd64(atanlo_atan, 12bv32)][22:0])) && 0bv1 == ~bvadd64(~bvneg32(~bvneg32(\valid[atanlo_atan])), 1bv1)) && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/2000000000))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 15707962513/10000000000)) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[atanhi_atan][~bvadd64(atanhi_atan, 12bv32)][31:31], unknown-#memory_int-unknown[atanhi_atan][~bvadd64(atanhi_atan, 12bv32)][30:23], unknown-#memory_int-unknown[atanhi_atan][~bvadd64(atanhi_atan, 12bv32)][22:0])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 0bv1 == ~bvadd64(~bvneg32(~bvneg32(\valid[atanhi_atan])), 1bv1) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-12 23:48:17,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a67607ae-ee10-4ada-962b-68b1fb9fd4a1/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE