./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0530b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0530b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V --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 6915ca7c38b22dabdfa0a60568fe3819ee729e5435cec7a2a93391b1f034f0d0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:27:36,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:27:36,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:27:36,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:27:36,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:27:36,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:27:36,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:27:36,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:27:36,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:27:36,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:27:36,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:27:36,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:27:36,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:27:36,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:27:36,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:27:36,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:27:36,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:27:36,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:27:36,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:27:36,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:27:36,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:27:36,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:27:36,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:27:36,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:27:36,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:27:36,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:27:36,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:27:36,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:27:36,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:27:36,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:27:36,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:27:36,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:27:36,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:27:36,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:27:36,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:27:36,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:27:36,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:27:36,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:27:36,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:27:36,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:27:36,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:27:36,809 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:27:36,845 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:27:36,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:27:36,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:27:36,846 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:27:36,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:27:36,847 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:27:36,847 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:27:36,847 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:27:36,847 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:27:36,847 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:27:36,848 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:27:36,848 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:27:36,848 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:27:36,848 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:27:36,848 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:27:36,849 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:27:36,849 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:27:36,849 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:27:36,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:27:36,850 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:27:36,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:27:36,850 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:27:36,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:27:36,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:27:36,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:27:36,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:27:36,851 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:27:36,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:27:36,852 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:27:36,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:27:36,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:27:36,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:27:36,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:27:36,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:27:36,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:27:36,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:27:36,854 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:27:36,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:27:36,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:27:36,854 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:27:36,854 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:27:36,855 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_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6915ca7c38b22dabdfa0a60568fe3819ee729e5435cec7a2a93391b1f034f0d0 [2021-11-23 03:27:37,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:27:37,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:27:37,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:27:37,131 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:27:37,132 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:27:37,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/float-newlib/float_req_bl_0530b.c [2021-11-23 03:27:37,211 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/data/56a719fc7/87a6a97043bc4e5ba8cb16eb32846144/FLAGe15529005 [2021-11-23 03:27:37,765 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:27:37,766 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c [2021-11-23 03:27:37,779 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/data/56a719fc7/87a6a97043bc4e5ba8cb16eb32846144/FLAGe15529005 [2021-11-23 03:27:38,050 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/data/56a719fc7/87a6a97043bc4e5ba8cb16eb32846144 [2021-11-23 03:27:38,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:27:38,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:27:38,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:27:38,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:27:38,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:27:38,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:27:38" (1/1) ... [2021-11-23 03:27:38,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@186ba0e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:38, skipping insertion in model container [2021-11-23 03:27:38,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:27:38" (1/1) ... [2021-11-23 03:27:38,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:27:38,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:27:38,560 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c[15592,15605] [2021-11-23 03:27:38,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:27:38,632 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:27:38,752 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c[15592,15605] [2021-11-23 03:27:38,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:27:38,796 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:27:38,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:38 WrapperNode [2021-11-23 03:27:38,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:27:38,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:27:38,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:27:38,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:27:38,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:38" (1/1) ... [2021-11-23 03:27:38,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:38" (1/1) ... [2021-11-23 03:27:38,934 INFO L137 Inliner]: procedures = 25, calls = 519, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 1066 [2021-11-23 03:27:38,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:27:38,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:27:38,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:27:38,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:27:38,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:38" (1/1) ... [2021-11-23 03:27:38,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:38" (1/1) ... [2021-11-23 03:27:38,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:38" (1/1) ... [2021-11-23 03:27:38,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:38" (1/1) ... [2021-11-23 03:27:39,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:38" (1/1) ... [2021-11-23 03:27:39,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:38" (1/1) ... [2021-11-23 03:27:39,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:38" (1/1) ... [2021-11-23 03:27:39,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:27:39,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:27:39,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:27:39,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:27:39,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:38" (1/1) ... [2021-11-23 03:27:39,133 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:27:39,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:27:39,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:27:39,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:27:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:27:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:27:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 03:27:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:27:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-11-23 03:27:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-11-23 03:27:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-23 03:27:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2021-11-23 03:27:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2021-11-23 03:27:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:27:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-23 03:27:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2021-11-23 03:27:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2021-11-23 03:27:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:27:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tanf [2021-11-23 03:27:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tanf [2021-11-23 03:27:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:27:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:27:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:27:39,473 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:27:39,475 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:27:40,476 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:27:40,686 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:27:40,687 INFO L301 CfgBuilder]: Removed 65 assume(true) statements. [2021-11-23 03:27:40,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:27:40 BoogieIcfgContainer [2021-11-23 03:27:40,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:27:40,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:27:40,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:27:40,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:27:40,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:27:38" (1/3) ... [2021-11-23 03:27:40,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219585bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:27:40, skipping insertion in model container [2021-11-23 03:27:40,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:38" (2/3) ... [2021-11-23 03:27:40,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219585bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:27:40, skipping insertion in model container [2021-11-23 03:27:40,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:27:40" (3/3) ... [2021-11-23 03:27:40,699 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0530b.c [2021-11-23 03:27:40,704 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:27:40,704 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:27:40,753 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:27:40,760 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 [2021-11-23 03:27:40,760 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:27:40,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 150 states have (on average 1.6933333333333334) internal successors, (254), 151 states have internal predecessors, (254), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-23 03:27:40,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 03:27:40,786 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:27:40,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:27:40,787 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:27:40,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:27:40,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1439887409, now seen corresponding path program 1 times [2021-11-23 03:27:40,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:27:40,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179705101] [2021-11-23 03:27:40,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:27:40,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:27:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:27:41,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:27:41,144 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:27:41,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179705101] [2021-11-23 03:27:41,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179705101] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:27:41,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:27:41,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:27:41,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121791399] [2021-11-23 03:27:41,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:27:41,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:27:41,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:27:41,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:27:41,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:27:41,201 INFO L87 Difference]: Start difference. First operand has 167 states, 150 states have (on average 1.6933333333333334) internal successors, (254), 151 states have internal predecessors, (254), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) 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) [2021-11-23 03:27:41,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:27:41,464 INFO L93 Difference]: Finished difference Result 333 states and 562 transitions. [2021-11-23 03:27:41,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:27:41,467 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 [2021-11-23 03:27:41,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:27:41,481 INFO L225 Difference]: With dead ends: 333 [2021-11-23 03:27:41,481 INFO L226 Difference]: Without dead ends: 165 [2021-11-23 03:27:41,492 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 [2021-11-23 03:27:41,496 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:27:41,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 175 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:27:41,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-23 03:27:41,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2021-11-23 03:27:41,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 149 states have (on average 1.3691275167785235) internal successors, (204), 149 states have internal predecessors, (204), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-23 03:27:41,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 226 transitions. [2021-11-23 03:27:41,600 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 226 transitions. Word has length 9 [2021-11-23 03:27:41,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:27:41,601 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 226 transitions. [2021-11-23 03:27:41,602 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) [2021-11-23 03:27:41,602 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 226 transitions. [2021-11-23 03:27:41,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 03:27:41,604 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:27:41,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:27:41,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:27:41,606 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:27:41,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:27:41,611 INFO L85 PathProgramCache]: Analyzing trace with hash -364122791, now seen corresponding path program 1 times [2021-11-23 03:27:41,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:27:41,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583582319] [2021-11-23 03:27:41,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:27:41,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:27:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:27:41,758 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 03:27:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:27:41,920 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 03:27:41,920 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 03:27:41,922 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 03:27:41,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:27:41,928 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 03:27:41,931 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:27:41,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:27:41 BoogieIcfgContainer [2021-11-23 03:27:41,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:27:41,981 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:27:41,981 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:27:41,982 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:27:41,982 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:27:40" (3/4) ... [2021-11-23 03:27:41,985 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 03:27:41,985 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:27:41,986 INFO L158 Benchmark]: Toolchain (without parser) took 3932.02ms. Allocated memory was 88.1MB in the beginning and 159.4MB in the end (delta: 71.3MB). Free memory was 49.9MB in the beginning and 99.3MB in the end (delta: -49.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 03:27:41,987 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory was 67.9MB in the beginning and 67.8MB in the end (delta: 21.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:27:41,988 INFO L158 Benchmark]: CACSL2BoogieTranslator took 741.86ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 49.7MB in the beginning and 63.6MB in the end (delta: -13.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 03:27:41,989 INFO L158 Benchmark]: Boogie Procedure Inliner took 147.28ms. Allocated memory is still 107.0MB. Free memory was 63.6MB in the beginning and 56.7MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 03:27:41,989 INFO L158 Benchmark]: Boogie Preprocessor took 174.93ms. Allocated memory is still 107.0MB. Free memory was 56.7MB in the beginning and 49.7MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 03:27:41,990 INFO L158 Benchmark]: RCFGBuilder took 1567.44ms. Allocated memory is still 107.0MB. Free memory was 49.7MB in the beginning and 71.8MB in the end (delta: -22.1MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2021-11-23 03:27:41,991 INFO L158 Benchmark]: TraceAbstraction took 1289.28ms. Allocated memory was 107.0MB in the beginning and 159.4MB in the end (delta: 52.4MB). Free memory was 71.2MB in the beginning and 99.3MB in the end (delta: -28.1MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2021-11-23 03:27:41,991 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 159.4MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:27:41,995 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory was 67.9MB in the beginning and 67.8MB in the end (delta: 21.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 741.86ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 49.7MB in the beginning and 63.6MB in the end (delta: -13.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 147.28ms. Allocated memory is still 107.0MB. Free memory was 63.6MB in the beginning and 56.7MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 174.93ms. Allocated memory is still 107.0MB. Free memory was 56.7MB in the beginning and 49.7MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1567.44ms. Allocated memory is still 107.0MB. Free memory was 49.7MB in the beginning and 71.8MB in the end (delta: -22.1MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1289.28ms. Allocated memory was 107.0MB in the beginning and 159.4MB in the end (delta: 52.4MB). Free memory was 71.2MB in the beginning and 99.3MB in the end (delta: -28.1MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 159.4MB. Free memory is still 99.3MB. 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: 629]: 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 628, overapproximation of someUnaryDOUBLEoperation at line 497, overapproximation of bitwiseAnd at line 591, overapproximation of someUnaryFLOAToperation at line 624, overapproximation of someBinaryArithmeticFLOAToperation at line 596. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L79-L81] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L149] static const int init_jk_krempio[] = {4, 7, 9}; [L151-L155] static const float PIo2_krempio[] = { 1.5703125000e+00, 4.5776367188e-04, 2.5987625122e-05, 7.5437128544e-08, 6.0026650317e-11, 7.3896444519e-13, 5.3845816694e-15, 5.6378512969e-18, 8.3009228831e-20, 3.2756352257e-22, 6.3331015649e-25, }; [L157-L159] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L334-L352] static const __int32_t two_over_pi_rempio[] = { 0xA2, 0xF9, 0x83, 0x6E, 0x4E, 0x44, 0x15, 0x29, 0xFC, 0x27, 0x57, 0xD1, 0xF5, 0x34, 0xDD, 0xC0, 0xDB, 0x62, 0x95, 0x99, 0x3C, 0x43, 0x90, 0x41, 0xFE, 0x51, 0x63, 0xAB, 0xDE, 0xBB, 0xC5, 0x61, 0xB7, 0x24, 0x6E, 0x3A, 0x42, 0x4D, 0xD2, 0xE0, 0x06, 0x49, 0x2E, 0xEA, 0x09, 0xD1, 0x92, 0x1C, 0xFE, 0x1D, 0xEB, 0x1C, 0xB1, 0x29, 0xA7, 0x3E, 0xE8, 0x82, 0x35, 0xF5, 0x2E, 0xBB, 0x44, 0x84, 0xE9, 0x9C, 0x70, 0x26, 0xB4, 0x5F, 0x7E, 0x41, 0x39, 0x91, 0xD6, 0x39, 0x83, 0x53, 0x39, 0xF4, 0x9C, 0x84, 0x5F, 0x8B, 0xBD, 0xF9, 0x28, 0x3B, 0x1F, 0xF8, 0x97, 0xFF, 0xDE, 0x05, 0x98, 0x0F, 0xEF, 0x2F, 0x11, 0x8B, 0x5A, 0x0A, 0x6D, 0x1F, 0x6D, 0x36, 0x7E, 0xCF, 0x27, 0xCB, 0x09, 0xB7, 0x4F, 0x46, 0x3F, 0x66, 0x9E, 0x5F, 0xEA, 0x2D, 0x75, 0x27, 0xBA, 0xC7, 0xEB, 0xE5, 0xF1, 0x7B, 0x3D, 0x07, 0x39, 0xF7, 0x8A, 0x52, 0x92, 0xEA, 0x6B, 0xFB, 0x5F, 0xB1, 0x1F, 0x8D, 0x5D, 0x08, 0x56, 0x03, 0x30, 0x46, 0xFC, 0x7B, 0x6B, 0xAB, 0xF0, 0xCF, 0xBC, 0x20, 0x9A, 0xF4, 0x36, 0x1D, 0xA9, 0xE3, 0x91, 0x61, 0x5E, 0xE6, 0x1B, 0x08, 0x65, 0x99, 0x85, 0x5F, 0x14, 0xA0, 0x68, 0x40, 0x8D, 0xFF, 0xD8, 0x80, 0x4D, 0x73, 0x27, 0x31, 0x06, 0x06, 0x15, 0x56, 0xCA, 0x73, 0xA8, 0xC9, 0x60, 0xE2, 0x7B, 0xC0, 0x8C, 0x6B, }; [L354-L360] static const __int32_t npio2_hw_rempio[] = { 0x3fc90f00, 0x40490f00, 0x4096cb00, 0x40c90f00, 0x40fb5300, 0x4116cb00, 0x412fed00, 0x41490f00, 0x41623100, 0x417b5300, 0x418a3a00, 0x4196cb00, 0x41a35c00, 0x41afed00, 0x41bc7e00, 0x41c90f00, 0x41d5a000, 0x41e23100, 0x41eec200, 0x41fb5300, 0x4203f200, 0x420a3a00, 0x42108300, 0x4216cb00, 0x421d1400, 0x42235c00, 0x4229a500, 0x422fed00, 0x42363600, 0x423c7e00, 0x4242c700, 0x42490f00}; [L362-L371] static const float zero_rempio = 0.0000000000e+00, half_rempio = 5.0000000000e-01, two8_rempio = 2.5600000000e+02, invpio2_rempio = 6.3661980629e-01, pio2_1_rempio = 1.5707855225e+00, pio2_1t_rempio = 1.0804334124e-05, pio2_2_rempio = 1.0804273188e-05, pio2_2t_rempio = 6.0770999344e-11, pio2_3_rempio = 6.0770943833e-11, pio2_3t_rempio = 6.1232342629e-17; [L491-L499] static const float one_ktan = 1.0000000000e+00, pio4_ktan = 7.8539812565e-01, pio4lo_ktan = 3.7748947079e-08, T_ktan[] = { 3.3333334327e-01, 1.3333334029e-01, 5.3968254477e-02, 2.1869488060e-02, 8.8632395491e-03, 3.5920790397e-03, 1.4562094584e-03, 5.8804126456e-04, 2.4646313977e-04, 7.8179444245e-05, 7.1407252108e-05, -1.8558637748e-05, 2.5907305826e-05, }; [L624] float x = -0.0f; [L625] CALL, EXPR tan_float(x) [L582] float y[2], z = 0.0; [L583] __int32_t n, ix; VAL [\old(x)=1000000000000000000000000000001, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000001, y={13:0}, z=0, zero_krempio=0, zero_rempio=0] [L586] ieee_float_shape_type gf_u; [L587] gf_u.value = (x) [L588] EXPR gf_u.word [L588] (ix) = gf_u.word [L591] ix &= 0x7fffffff VAL [\old(x)=1000000000000000000000000000001, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000001, y={13:0}, z=0, zero_krempio=0, zero_rempio=0] [L592] COND FALSE !(ix <= 0x3f490fda) VAL [\old(x)=1000000000000000000000000000001, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, ix=2139095040, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000001, y={13:0}, z=0, zero_krempio=0, zero_rempio=0] [L595] COND TRUE !((ix) < 0x7f800000L) [L596] return x - x; [L596] return x - x; VAL [\old(x)=1000000000000000000000000000001, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, ix=2139095040, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000001, z=0, zero_krempio=0, zero_rempio=0] [L625] RET, EXPR tan_float(x) [L625] float res = tan_float(x); [L628] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, res=1000000000000000000000000000002, res == -0.0f && __signbit_float(res) == 1=0, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000001, zero_krempio=0, zero_rempio=0] [L628] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L629] reach_error() VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, res=1000000000000000000000000000002, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000001, zero_krempio=0, zero_rempio=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 167 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 175 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 175 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 [2021-11-23 03:27:42,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/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_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0530b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V --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 6915ca7c38b22dabdfa0a60568fe3819ee729e5435cec7a2a93391b1f034f0d0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:27:44,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:27:44,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:27:44,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:27:44,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:27:44,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:27:44,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:27:44,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:27:44,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:27:44,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:27:44,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:27:44,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:27:44,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:27:44,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:27:44,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:27:44,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:27:44,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:27:44,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:27:44,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:27:44,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:27:44,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:27:44,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:27:44,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:27:44,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:27:44,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:27:44,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:27:44,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:27:44,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:27:44,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:27:44,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:27:44,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:27:44,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:27:44,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:27:44,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:27:44,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:27:44,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:27:44,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:27:44,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:27:44,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:27:44,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:27:44,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:27:44,709 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 03:27:44,752 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:27:44,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:27:44,753 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:27:44,753 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:27:44,754 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:27:44,755 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:27:44,755 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:27:44,755 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:27:44,756 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:27:44,756 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:27:44,757 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:27:44,757 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:27:44,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:27:44,759 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:27:44,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:27:44,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:27:44,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:27:44,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:27:44,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:27:44,761 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 03:27:44,761 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 03:27:44,761 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 03:27:44,762 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:27:44,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:27:44,762 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:27:44,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:27:44,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:27:44,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 03:27:44,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:27:44,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:27:44,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:27:44,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:27:44,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:27:44,765 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 03:27:44,765 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 03:27:44,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:27:44,766 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:27:44,766 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:27:44,767 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_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6915ca7c38b22dabdfa0a60568fe3819ee729e5435cec7a2a93391b1f034f0d0 [2021-11-23 03:27:45,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:27:45,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:27:45,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:27:45,247 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:27:45,247 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:27:45,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/float-newlib/float_req_bl_0530b.c [2021-11-23 03:27:45,314 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/data/9a505fc9b/778b51761c9747809284d2f34d963482/FLAG59cddde6a [2021-11-23 03:27:45,926 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:27:45,931 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c [2021-11-23 03:27:45,954 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/data/9a505fc9b/778b51761c9747809284d2f34d963482/FLAG59cddde6a [2021-11-23 03:27:46,195 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/data/9a505fc9b/778b51761c9747809284d2f34d963482 [2021-11-23 03:27:46,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:27:46,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:27:46,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:27:46,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:27:46,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:27:46,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:27:46" (1/1) ... [2021-11-23 03:27:46,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fc6c9c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:46, skipping insertion in model container [2021-11-23 03:27:46,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:27:46" (1/1) ... [2021-11-23 03:27:46,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:27:46,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:27:46,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c[15592,15605] [2021-11-23 03:27:46,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:27:46,871 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:27:47,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c[15592,15605] [2021-11-23 03:27:47,058 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:27:47,133 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:27:47,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:47 WrapperNode [2021-11-23 03:27:47,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:27:47,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:27:47,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:27:47,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:27:47,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:47" (1/1) ... [2021-11-23 03:27:47,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:47" (1/1) ... [2021-11-23 03:27:47,299 INFO L137 Inliner]: procedures = 29, calls = 519, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 1064 [2021-11-23 03:27:47,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:27:47,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:27:47,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:27:47,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:27:47,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:47" (1/1) ... [2021-11-23 03:27:47,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:47" (1/1) ... [2021-11-23 03:27:47,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:47" (1/1) ... [2021-11-23 03:27:47,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:47" (1/1) ... [2021-11-23 03:27:47,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:47" (1/1) ... [2021-11-23 03:27:47,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:47" (1/1) ... [2021-11-23 03:27:47,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:47" (1/1) ... [2021-11-23 03:27:47,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:27:47,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:27:47,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:27:47,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:27:47,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:47" (1/1) ... [2021-11-23 03:27:47,532 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:27:47,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:27:47,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:27:47,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:27:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:27:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 03:27:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 03:27:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:27:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-23 03:27:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-11-23 03:27:47,636 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-11-23 03:27:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 03:27:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2021-11-23 03:27:47,636 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2021-11-23 03:27:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-23 03:27:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2021-11-23 03:27:47,637 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2021-11-23 03:27:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-23 03:27:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tanf [2021-11-23 03:27:47,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tanf [2021-11-23 03:27:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:27:47,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:27:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 03:27:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:27:47,851 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:27:47,853 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:28:25,264 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:28:25,282 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:28:25,283 INFO L301 CfgBuilder]: Removed 65 assume(true) statements. [2021-11-23 03:28:25,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:28:25 BoogieIcfgContainer [2021-11-23 03:28:25,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:28:25,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:28:25,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:28:25,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:28:25,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:27:46" (1/3) ... [2021-11-23 03:28:25,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627d571b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:28:25, skipping insertion in model container [2021-11-23 03:28:25,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:47" (2/3) ... [2021-11-23 03:28:25,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627d571b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:28:25, skipping insertion in model container [2021-11-23 03:28:25,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:28:25" (3/3) ... [2021-11-23 03:28:25,296 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0530b.c [2021-11-23 03:28:25,302 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:28:25,303 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:28:25,365 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:28:25,385 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 [2021-11-23 03:28:25,386 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:28:25,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 247 states, 230 states have (on average 1.6695652173913043) internal successors, (384), 231 states have internal predecessors, (384), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-23 03:28:25,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 03:28:25,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:28:25,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:28:25,434 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:28:25,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:28:25,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1661351645, now seen corresponding path program 1 times [2021-11-23 03:28:25,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:28:25,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487327522] [2021-11-23 03:28:25,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:28:25,468 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:28:25,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:28:25,473 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:28:25,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 03:28:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:28:27,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 03:28:27,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:28:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:28:27,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:28:27,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:28:27,466 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:28:27,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487327522] [2021-11-23 03:28:27,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487327522] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:28:27,468 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:28:27,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 03:28:27,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519642275] [2021-11-23 03:28:27,471 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:28:27,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:28:27,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:28:27,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:28:27,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:28:27,515 INFO L87 Difference]: Start difference. First operand has 247 states, 230 states have (on average 1.6695652173913043) internal successors, (384), 231 states have internal predecessors, (384), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:28:27,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:28:27,579 INFO L93 Difference]: Finished difference Result 492 states and 821 transitions. [2021-11-23 03:28:27,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:28:27,581 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-23 03:28:27,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:28:27,593 INFO L225 Difference]: With dead ends: 492 [2021-11-23 03:28:27,593 INFO L226 Difference]: Without dead ends: 244 [2021-11-23 03:28:27,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:28:27,603 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:28:27,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:28:27,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-11-23 03:28:27,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2021-11-23 03:28:27,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 228 states have (on average 1.381578947368421) internal successors, (315), 228 states have internal predecessors, (315), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-23 03:28:27,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 337 transitions. [2021-11-23 03:28:27,712 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 337 transitions. Word has length 10 [2021-11-23 03:28:27,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:28:27,719 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 337 transitions. [2021-11-23 03:28:27,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:28:27,720 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 337 transitions. [2021-11-23 03:28:27,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 03:28:27,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:28:27,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:28:27,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:28:27,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:28:27,942 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:28:27,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:28:27,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1285007371, now seen corresponding path program 1 times [2021-11-23 03:28:27,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:28:27,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998452998] [2021-11-23 03:28:27,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:28:27,945 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:28:27,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:28:27,947 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:28:27,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 03:28:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:28:29,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 03:28:29,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:28:30,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:28:30,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:28:30,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:28:30,570 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:28:30,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [998452998] [2021-11-23 03:28:30,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [998452998] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:28:30,571 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:28:30,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 03:28:30,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561626569] [2021-11-23 03:28:30,572 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:28:30,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:28:30,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:28:30,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:28:30,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:28:30,575 INFO L87 Difference]: Start difference. First operand 244 states and 337 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) [2021-11-23 03:28:30,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:28:30,809 INFO L93 Difference]: Finished difference Result 290 states and 390 transitions. [2021-11-23 03:28:30,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:28:30,809 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-23 03:28:30,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:28:30,811 INFO L225 Difference]: With dead ends: 290 [2021-11-23 03:28:30,811 INFO L226 Difference]: Without dead ends: 54 [2021-11-23 03:28:30,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-23 03:28:30,816 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 3 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:28:30,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 345 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 2 Unchecked, 0.1s Time] [2021-11-23 03:28:30,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-23 03:28:30,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-11-23 03:28:30,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 49 states have (on average 1.183673469387755) internal successors, (58), 49 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:28:30,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2021-11-23 03:28:30,824 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 11 [2021-11-23 03:28:30,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:28:30,825 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2021-11-23 03:28:30,825 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) [2021-11-23 03:28:30,825 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2021-11-23 03:28:30,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 03:28:30,826 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:28:30,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:28:30,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:28:31,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:28:31,049 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:28:31,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:28:31,050 INFO L85 PathProgramCache]: Analyzing trace with hash 632012606, now seen corresponding path program 1 times [2021-11-23 03:28:31,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:28:31,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287715181] [2021-11-23 03:28:31,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:28:31,052 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:28:31,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:28:31,053 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:28:31,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 03:28:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:28:34,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 03:28:34,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:28:35,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:28:35,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:28:37,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:28:37,445 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:28:37,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287715181] [2021-11-23 03:28:37,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1287715181] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:28:37,446 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:28:37,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-23 03:28:37,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834220593] [2021-11-23 03:28:37,446 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:28:37,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 03:28:37,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:28:37,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 03:28:37,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-11-23 03:28:37,449 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:28:39,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:28:39,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:28:39,906 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2021-11-23 03:28:39,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:28:39,978 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2021-11-23 03:28:39,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:28:39,980 INFO L225 Difference]: With dead ends: 82 [2021-11-23 03:28:39,980 INFO L226 Difference]: Without dead ends: 54 [2021-11-23 03:28:39,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-23 03:28:39,983 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 57 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:28:39,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 371 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 1 Unknown, 39 Unchecked, 2.3s Time] [2021-11-23 03:28:39,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-23 03:28:39,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-11-23 03:28:39,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 49 states have (on average 1.163265306122449) internal successors, (57), 49 states have internal predecessors, (57), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:28:39,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2021-11-23 03:28:39,992 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 22 [2021-11-23 03:28:39,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:28:39,992 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2021-11-23 03:28:39,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:28:39,993 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2021-11-23 03:28:39,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 03:28:39,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:28:39,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:28:40,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:28:40,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:28:40,203 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:28:40,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:28:40,204 INFO L85 PathProgramCache]: Analyzing trace with hash 2039574363, now seen corresponding path program 1 times [2021-11-23 03:28:40,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:28:40,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339177628] [2021-11-23 03:28:40,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:28:40,206 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:28:40,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:28:40,208 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:28:40,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 03:28:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:28:43,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 03:28:43,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:28:44,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:28:44,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:28:48,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:28:48,025 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:28:48,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339177628] [2021-11-23 03:28:48,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [339177628] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:28:48,026 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:28:48,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-23 03:28:48,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278073995] [2021-11-23 03:28:48,026 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:28:48,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 03:28:48,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:28:48,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 03:28:48,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:28:48,029 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:28:51,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:28:53,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:28:55,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:28:57,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:28:58,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:29:01,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:29:01,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:29:01,400 INFO L93 Difference]: Finished difference Result 68 states and 75 transitions. [2021-11-23 03:29:01,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:29:01,401 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2021-11-23 03:29:01,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:29:01,402 INFO L225 Difference]: With dead ends: 68 [2021-11-23 03:29:01,403 INFO L226 Difference]: Without dead ends: 38 [2021-11-23 03:29:01,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:29:01,404 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 50 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:29:01,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 195 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 3 Unknown, 0 Unchecked, 13.1s Time] [2021-11-23 03:29:01,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-23 03:29:01,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-11-23 03:29:01,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 33 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:29:01,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2021-11-23 03:29:01,412 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 23 [2021-11-23 03:29:01,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:29:01,412 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2021-11-23 03:29:01,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:29:01,413 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2021-11-23 03:29:01,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 03:29:01,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:29:01,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:29:01,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:29:01,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:29:01,623 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:29:01,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:29:01,624 INFO L85 PathProgramCache]: Analyzing trace with hash 521946787, now seen corresponding path program 1 times [2021-11-23 03:29:01,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:29:01,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1003919041] [2021-11-23 03:29:01,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:29:01,625 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:29:01,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:29:01,632 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:29:01,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 03:29:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:29:03,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 03:29:03,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:29:04,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:29:04,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:29:07,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:29:07,066 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:29:07,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1003919041] [2021-11-23 03:29:07,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1003919041] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:29:07,066 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:29:07,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2021-11-23 03:29:07,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085923529] [2021-11-23 03:29:07,067 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:29:07,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-23 03:29:07,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:29:07,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-23 03:29:07,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-11-23 03:29:07,068 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 13 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:29:09,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:29:14,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:29:14,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:29:14,216 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2021-11-23 03:29:14,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 03:29:14,216 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 13 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2021-11-23 03:29:14,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:29:14,217 INFO L225 Difference]: With dead ends: 54 [2021-11-23 03:29:14,218 INFO L226 Difference]: Without dead ends: 51 [2021-11-23 03:29:14,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2021-11-23 03:29:14,219 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 38 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:29:14,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 317 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 113 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2021-11-23 03:29:14,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-23 03:29:14,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2021-11-23 03:29:14,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 38 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-23 03:29:14,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2021-11-23 03:29:14,228 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 23 [2021-11-23 03:29:14,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:29:14,229 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2021-11-23 03:29:14,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 13 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:29:14,229 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2021-11-23 03:29:14,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 03:29:14,230 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:29:14,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:29:14,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 03:29:14,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:29:14,440 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:29:14,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:29:14,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1202005157, now seen corresponding path program 1 times [2021-11-23 03:29:14,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:29:14,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643499762] [2021-11-23 03:29:14,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:29:14,442 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:29:14,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:29:14,445 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:29:14,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 03:29:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:29:16,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:29:16,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:29:16,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:29:16,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:29:17,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:29:17,134 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:29:17,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643499762] [2021-11-23 03:29:17,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643499762] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:29:17,135 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:29:17,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-23 03:29:17,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675396244] [2021-11-23 03:29:17,135 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:29:17,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:29:17,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:29:17,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:29:17,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:29:17,137 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:29:18,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:29:18,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:29:18,642 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2021-11-23 03:29:18,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:29:18,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-11-23 03:29:18,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:29:18,644 INFO L225 Difference]: With dead ends: 51 [2021-11-23 03:29:18,644 INFO L226 Difference]: Without dead ends: 28 [2021-11-23 03:29:18,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:29:18,646 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 13 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:29:18,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 66 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-23 03:29:18,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-23 03:29:18,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-23 03:29:18,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.0) internal successors, (25), 25 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:29:18,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2021-11-23 03:29:18,651 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 23 [2021-11-23 03:29:18,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:29:18,652 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2021-11-23 03:29:18,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:29:18,652 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2021-11-23 03:29:18,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 03:29:18,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:29:18,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:29:18,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 03:29:18,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:29:18,865 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:29:18,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:29:18,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1963668792, now seen corresponding path program 1 times [2021-11-23 03:29:18,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:29:18,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659152511] [2021-11-23 03:29:18,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:29:18,867 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:29:18,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:29:18,868 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:29:18,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 03:29:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:29:20,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 03:29:20,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:29:22,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:29:22,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:29:28,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:29:28,320 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:29:28,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659152511] [2021-11-23 03:29:28,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659152511] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:29:28,321 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:29:28,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 22 [2021-11-23 03:29:28,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613181543] [2021-11-23 03:29:28,321 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:29:28,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-23 03:29:28,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:29:28,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-23 03:29:28,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2021-11-23 03:29:28,324 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand has 22 states, 22 states have (on average 2.090909090909091) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:29:31,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:29:31,217 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2021-11-23 03:29:31,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 03:29:31,217 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.090909090909091) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2021-11-23 03:29:31,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:29:31,217 INFO L225 Difference]: With dead ends: 28 [2021-11-23 03:29:31,218 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 03:29:31,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=140, Invalid=790, Unknown=0, NotChecked=0, Total=930 [2021-11-23 03:29:31,219 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 37 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:29:31,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 156 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 64 Invalid, 0 Unknown, 77 Unchecked, 0.8s Time] [2021-11-23 03:29:31,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 03:29:31,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 03:29:31,221 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) [2021-11-23 03:29:31,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 03:29:31,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2021-11-23 03:29:31,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:29:31,222 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 03:29:31,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.090909090909091) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:29:31,223 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 03:29:31,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 03:29:31,226 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 03:29:31,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-23 03:29:31,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:29:31,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 03:29:33,082 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 59 77) no Hoare annotation was computed. [2021-11-23 03:29:33,082 INFO L858 garLoopResultBuilder]: For program point copysign_floatEXIT(lines 59 77) no Hoare annotation was computed. [2021-11-23 03:29:33,082 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 75) no Hoare annotation was computed. [2021-11-23 03:29:33,082 INFO L858 garLoopResultBuilder]: For program point L71-1(lines 59 77) no Hoare annotation was computed. [2021-11-23 03:29:33,082 INFO L858 garLoopResultBuilder]: For program point L71-2(lines 71 75) no Hoare annotation was computed. [2021-11-23 03:29:33,082 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2021-11-23 03:29:33,082 INFO L861 garLoopResultBuilder]: At program point L61-2(lines 61 65) the Hoare annotation is: true [2021-11-23 03:29:33,083 INFO L861 garLoopResultBuilder]: At program point copysign_floatENTRY(lines 59 77) the Hoare annotation is: true [2021-11-23 03:29:33,083 INFO L858 garLoopResultBuilder]: For program point copysign_floatFINAL(lines 59 77) no Hoare annotation was computed. [2021-11-23 03:29:33,083 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-11-23 03:29:33,083 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 517) no Hoare annotation was computed. [2021-11-23 03:29:33,083 INFO L858 garLoopResultBuilder]: For program point L510-2(lines 501 579) no Hoare annotation was computed. [2021-11-23 03:29:33,083 INFO L858 garLoopResultBuilder]: For program point __kernel_tanfFINAL(lines 501 579) no Hoare annotation was computed. [2021-11-23 03:29:33,083 INFO L858 garLoopResultBuilder]: For program point L519(lines 519 522) no Hoare annotation was computed. [2021-11-23 03:29:33,084 INFO L858 garLoopResultBuilder]: For program point L519-2(lines 519 522) no Hoare annotation was computed. [2021-11-23 03:29:33,084 INFO L858 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2021-11-23 03:29:33,084 INFO L858 garLoopResultBuilder]: For program point L515-2(line 515) no Hoare annotation was computed. [2021-11-23 03:29:33,084 INFO L858 garLoopResultBuilder]: For program point L511(lines 511 516) no Hoare annotation was computed. [2021-11-23 03:29:33,084 INFO L858 garLoopResultBuilder]: For program point __kernel_tanfEXIT(lines 501 579) no Hoare annotation was computed. [2021-11-23 03:29:33,084 INFO L861 garLoopResultBuilder]: At program point __kernel_tanfENTRY(lines 501 579) the Hoare annotation is: true [2021-11-23 03:29:33,084 INFO L858 garLoopResultBuilder]: For program point L512(lines 512 515) no Hoare annotation was computed. [2021-11-23 03:29:33,085 INFO L858 garLoopResultBuilder]: For program point L504-1(lines 504 508) no Hoare annotation was computed. [2021-11-23 03:29:33,085 INFO L854 garLoopResultBuilder]: At program point L504-2(lines 504 508) the Hoare annotation is: (and (= |__kernel_tanf_#in~x| __kernel_tanf_~x) (= __kernel_tanf_~iy |__kernel_tanf_#in~iy|)) [2021-11-23 03:29:33,085 INFO L858 garLoopResultBuilder]: For program point L504-3(lines 504 508) no Hoare annotation was computed. [2021-11-23 03:29:33,085 INFO L858 garLoopResultBuilder]: For program point L566-1(lines 566 570) no Hoare annotation was computed. [2021-11-23 03:29:33,085 INFO L854 garLoopResultBuilder]: At program point L566-2(lines 566 570) the Hoare annotation is: (exists ((__kernel_tanf_~hx~2 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __kernel_tanf_~hx~2) ((_ extract 30 23) __kernel_tanf_~hx~2) ((_ extract 22 0) __kernel_tanf_~hx~2)) |__kernel_tanf_#in~x|) (not (bvslt (bvand (_ bv2147483647 32) __kernel_tanf_~hx~2) (_ bv830472192 32))))) [2021-11-23 03:29:33,086 INFO L858 garLoopResultBuilder]: For program point L554-1(lines 554 558) no Hoare annotation was computed. [2021-11-23 03:29:33,086 INFO L854 garLoopResultBuilder]: At program point L554-2(lines 554 558) the Hoare annotation is: (exists ((__kernel_tanf_~hx~2 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __kernel_tanf_~hx~2) ((_ extract 30 23) __kernel_tanf_~hx~2) ((_ extract 22 0) __kernel_tanf_~hx~2)) |__kernel_tanf_#in~x|) (not (bvslt (bvand (_ bv2147483647 32) __kernel_tanf_~hx~2) (_ bv830472192 32))))) [2021-11-23 03:29:33,086 INFO L854 garLoopResultBuilder]: At program point L513(line 513) the Hoare annotation is: (and (= |__kernel_tanf_#in~x| __kernel_tanf_~x) (= __kernel_tanf_~iy |__kernel_tanf_#in~iy|) (not (= (_ bv1 32) |__kernel_tanf_#in~iy|))) [2021-11-23 03:29:33,086 INFO L858 garLoopResultBuilder]: For program point L513-1(line 513) no Hoare annotation was computed. [2021-11-23 03:29:33,087 INFO L858 garLoopResultBuilder]: For program point L542(lines 542 546) no Hoare annotation was computed. [2021-11-23 03:29:33,087 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 575) no Hoare annotation was computed. [2021-11-23 03:29:33,087 INFO L858 garLoopResultBuilder]: For program point L571-1(lines 549 578) no Hoare annotation was computed. [2021-11-23 03:29:33,087 INFO L858 garLoopResultBuilder]: For program point L571-2(lines 571 575) no Hoare annotation was computed. [2021-11-23 03:29:33,087 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 563) no Hoare annotation was computed. [2021-11-23 03:29:33,087 INFO L858 garLoopResultBuilder]: For program point L559-1(lines 549 578) no Hoare annotation was computed. [2021-11-23 03:29:33,087 INFO L858 garLoopResultBuilder]: For program point L559-2(lines 559 563) no Hoare annotation was computed. [2021-11-23 03:29:33,088 INFO L858 garLoopResultBuilder]: For program point L518-1(lines 518 527) no Hoare annotation was computed. [2021-11-23 03:29:33,088 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 578) no Hoare annotation was computed. [2021-11-23 03:29:33,088 INFO L858 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 134 147) no Hoare annotation was computed. [2021-11-23 03:29:33,088 INFO L858 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 134 147) no Hoare annotation was computed. [2021-11-23 03:29:33,088 INFO L861 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 134 147) the Hoare annotation is: true [2021-11-23 03:29:33,088 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 145) no Hoare annotation was computed. [2021-11-23 03:29:33,088 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 134 147) no Hoare annotation was computed. [2021-11-23 03:29:33,088 INFO L858 garLoopResultBuilder]: For program point L141-2(lines 141 145) no Hoare annotation was computed. [2021-11-23 03:29:33,089 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2021-11-23 03:29:33,089 INFO L861 garLoopResultBuilder]: At program point L136-2(lines 136 140) the Hoare annotation is: true [2021-11-23 03:29:33,089 INFO L854 garLoopResultBuilder]: At program point L267(line 267) the Hoare annotation is: false [2021-11-23 03:29:33,089 INFO L858 garLoopResultBuilder]: For program point L267-1(line 267) no Hoare annotation was computed. [2021-11-23 03:29:33,089 INFO L858 garLoopResultBuilder]: For program point L300-2(lines 300 301) no Hoare annotation was computed. [2021-11-23 03:29:33,089 INFO L854 garLoopResultBuilder]: At program point L300-3(lines 300 301) the Hoare annotation is: false [2021-11-23 03:29:33,089 INFO L858 garLoopResultBuilder]: For program point L300-4(lines 290 330) no Hoare annotation was computed. [2021-11-23 03:29:33,089 INFO L858 garLoopResultBuilder]: For program point L433(lines 433 452) no Hoare annotation was computed. [2021-11-23 03:29:33,089 INFO L858 garLoopResultBuilder]: For program point L433-1(lines 421 453) no Hoare annotation was computed. [2021-11-23 03:29:33,089 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 275) no Hoare annotation was computed. [2021-11-23 03:29:33,090 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 236) no Hoare annotation was computed. [2021-11-23 03:29:33,090 INFO L854 garLoopResultBuilder]: At program point L268-2(lines 259 276) the Hoare annotation is: false [2021-11-23 03:29:33,090 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 38) no Hoare annotation was computed. [2021-11-23 03:29:33,090 INFO L858 garLoopResultBuilder]: For program point L302-1(line 302) no Hoare annotation was computed. [2021-11-23 03:29:33,090 INFO L854 garLoopResultBuilder]: At program point L236(line 236) the Hoare annotation is: false [2021-11-23 03:29:33,090 INFO L858 garLoopResultBuilder]: For program point L236-1(line 236) no Hoare annotation was computed. [2021-11-23 03:29:33,090 INFO L861 garLoopResultBuilder]: At program point L633(lines 616 634) the Hoare annotation is: true [2021-11-23 03:29:33,090 INFO L854 garLoopResultBuilder]: At program point L600(line 600) the Hoare annotation is: false [2021-11-23 03:29:33,091 INFO L858 garLoopResultBuilder]: For program point L600-1(line 600) no Hoare annotation was computed. [2021-11-23 03:29:33,091 INFO L854 garLoopResultBuilder]: At program point L600-2(lines 581 602) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_tan_float_#res#1| .cse0) (= |ULTIMATE.start_tan_float_~x#1| .cse0))) [2021-11-23 03:29:33,091 INFO L858 garLoopResultBuilder]: For program point L171(lines 171 172) no Hoare annotation was computed. [2021-11-23 03:29:33,091 INFO L858 garLoopResultBuilder]: For program point L171-2(lines 171 172) no Hoare annotation was computed. [2021-11-23 03:29:33,091 INFO L858 garLoopResultBuilder]: For program point L39(lines 39 43) no Hoare annotation was computed. [2021-11-23 03:29:33,091 INFO L858 garLoopResultBuilder]: For program point L469-1(lines 469 473) no Hoare annotation was computed. [2021-11-23 03:29:33,091 INFO L854 garLoopResultBuilder]: At program point L469-2(lines 469 473) the Hoare annotation is: false [2021-11-23 03:29:33,091 INFO L858 garLoopResultBuilder]: For program point L469-3(lines 469 473) no Hoare annotation was computed. [2021-11-23 03:29:33,091 INFO L858 garLoopResultBuilder]: For program point L304-2(lines 304 305) no Hoare annotation was computed. [2021-11-23 03:29:33,091 INFO L858 garLoopResultBuilder]: For program point L205(lines 205 208) no Hoare annotation was computed. [2021-11-23 03:29:33,092 INFO L854 garLoopResultBuilder]: At program point L304-3(lines 304 305) the Hoare annotation is: false [2021-11-23 03:29:33,092 INFO L858 garLoopResultBuilder]: For program point L304-4(lines 290 330) no Hoare annotation was computed. [2021-11-23 03:29:33,092 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-11-23 03:29:33,092 INFO L858 garLoopResultBuilder]: For program point L40-2(lines 40 41) no Hoare annotation was computed. [2021-11-23 03:29:33,092 INFO L858 garLoopResultBuilder]: For program point L404(lines 404 411) no Hoare annotation was computed. [2021-11-23 03:29:33,092 INFO L858 garLoopResultBuilder]: For program point L404-2(lines 404 411) no Hoare annotation was computed. [2021-11-23 03:29:33,092 INFO L858 garLoopResultBuilder]: For program point L306-1(line 306) no Hoare annotation was computed. [2021-11-23 03:29:33,093 INFO L858 garLoopResultBuilder]: For program point L207(lines 207 208) no Hoare annotation was computed. [2021-11-23 03:29:33,093 INFO L858 garLoopResultBuilder]: For program point L240-1(lines 162 332) no Hoare annotation was computed. [2021-11-23 03:29:33,093 INFO L858 garLoopResultBuilder]: For program point L207-2(lines 162 332) no Hoare annotation was computed. [2021-11-23 03:29:33,093 INFO L858 garLoopResultBuilder]: For program point L439-1(lines 439 443) no Hoare annotation was computed. [2021-11-23 03:29:33,093 INFO L854 garLoopResultBuilder]: At program point L439-2(lines 439 443) the Hoare annotation is: false [2021-11-23 03:29:33,093 INFO L858 garLoopResultBuilder]: For program point L439-3(lines 439 443) no Hoare annotation was computed. [2021-11-23 03:29:33,093 INFO L858 garLoopResultBuilder]: For program point L308(line 308) no Hoare annotation was computed. [2021-11-23 03:29:33,094 INFO L858 garLoopResultBuilder]: For program point L242-2(lines 242 243) no Hoare annotation was computed. [2021-11-23 03:29:33,094 INFO L854 garLoopResultBuilder]: At program point L242-3(lines 242 243) the Hoare annotation is: false [2021-11-23 03:29:33,094 INFO L858 garLoopResultBuilder]: For program point L242-4(lines 240 257) no Hoare annotation was computed. [2021-11-23 03:29:33,094 INFO L858 garLoopResultBuilder]: For program point L474-2(lines 474 477) no Hoare annotation was computed. [2021-11-23 03:29:33,094 INFO L854 garLoopResultBuilder]: At program point L474-3(lines 474 477) the Hoare annotation is: false [2021-11-23 03:29:33,095 INFO L858 garLoopResultBuilder]: For program point L474-4(lines 474 477) no Hoare annotation was computed. [2021-11-23 03:29:33,095 INFO L858 garLoopResultBuilder]: For program point L309-2(lines 309 313) no Hoare annotation was computed. [2021-11-23 03:29:33,095 INFO L858 garLoopResultBuilder]: For program point L210(lines 162 332) no Hoare annotation was computed. [2021-11-23 03:29:33,095 INFO L854 garLoopResultBuilder]: At program point L309-3(lines 309 313) the Hoare annotation is: false [2021-11-23 03:29:33,095 INFO L858 garLoopResultBuilder]: For program point L309-4(lines 309 313) no Hoare annotation was computed. [2021-11-23 03:29:33,096 INFO L858 garLoopResultBuilder]: For program point L177-2(lines 177 178) no Hoare annotation was computed. [2021-11-23 03:29:33,096 INFO L854 garLoopResultBuilder]: At program point L177-3(lines 177 178) the Hoare annotation is: false [2021-11-23 03:29:33,096 INFO L858 garLoopResultBuilder]: For program point L177-4(lines 177 178) no Hoare annotation was computed. [2021-11-23 03:29:33,096 INFO L858 garLoopResultBuilder]: For program point L607-1(lines 607 611) no Hoare annotation was computed. [2021-11-23 03:29:33,096 INFO L854 garLoopResultBuilder]: At program point L607-2(lines 607 611) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |ULTIMATE.start_main_#t~short141#1| (= |ULTIMATE.start_tan_float_#res#1| .cse0) (= |ULTIMATE.start_tan_float_~x#1| .cse0) (= .cse0 |ULTIMATE.start___signbit_float_~x#1|) (= |ULTIMATE.start_main_~res~0#1| .cse0))) [2021-11-23 03:29:33,097 INFO L858 garLoopResultBuilder]: For program point L607-3(lines 607 611) no Hoare annotation was computed. [2021-11-23 03:29:33,097 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-11-23 03:29:33,097 INFO L858 garLoopResultBuilder]: For program point L178-2(line 178) no Hoare annotation was computed. [2021-11-23 03:29:33,097 INFO L858 garLoopResultBuilder]: For program point L46(lines 46 49) no Hoare annotation was computed. [2021-11-23 03:29:33,097 INFO L858 garLoopResultBuilder]: For program point L278(line 278) no Hoare annotation was computed. [2021-11-23 03:29:33,098 INFO L858 garLoopResultBuilder]: For program point L245-1(lines 245 246) no Hoare annotation was computed. [2021-11-23 03:29:33,098 INFO L858 garLoopResultBuilder]: For program point L245-3(lines 245 246) no Hoare annotation was computed. [2021-11-23 03:29:33,098 INFO L854 garLoopResultBuilder]: At program point L245-4(lines 245 246) the Hoare annotation is: false [2021-11-23 03:29:33,098 INFO L858 garLoopResultBuilder]: For program point L245-5(lines 245 246) no Hoare annotation was computed. [2021-11-23 03:29:33,098 INFO L858 garLoopResultBuilder]: For program point L279-2(lines 279 282) no Hoare annotation was computed. [2021-11-23 03:29:33,099 INFO L854 garLoopResultBuilder]: At program point L279-3(lines 279 282) the Hoare annotation is: false [2021-11-23 03:29:33,099 INFO L858 garLoopResultBuilder]: For program point L213-2(lines 213 222) no Hoare annotation was computed. [2021-11-23 03:29:33,099 INFO L858 garLoopResultBuilder]: For program point L279-4(lines 279 282) no Hoare annotation was computed. [2021-11-23 03:29:33,099 INFO L858 garLoopResultBuilder]: For program point L180-2(lines 180 184) no Hoare annotation was computed. [2021-11-23 03:29:33,099 INFO L854 garLoopResultBuilder]: At program point L213-3(lines 213 222) the Hoare annotation is: false [2021-11-23 03:29:33,099 INFO L854 garLoopResultBuilder]: At program point L180-3(lines 180 184) the Hoare annotation is: false [2021-11-23 03:29:33,100 INFO L858 garLoopResultBuilder]: For program point L213-4(lines 210 238) no Hoare annotation was computed. [2021-11-23 03:29:33,100 INFO L858 garLoopResultBuilder]: For program point L180-4(lines 180 184) no Hoare annotation was computed. [2021-11-23 03:29:33,100 INFO L858 garLoopResultBuilder]: For program point L445(lines 445 451) no Hoare annotation was computed. [2021-11-23 03:29:33,100 INFO L858 garLoopResultBuilder]: For program point L379-1(lines 379 383) no Hoare annotation was computed. [2021-11-23 03:29:33,100 INFO L854 garLoopResultBuilder]: At program point L379-2(lines 379 383) the Hoare annotation is: false [2021-11-23 03:29:33,100 INFO L858 garLoopResultBuilder]: For program point L379-3(lines 379 383) no Hoare annotation was computed. [2021-11-23 03:29:33,101 INFO L858 garLoopResultBuilder]: For program point L181-2(lines 181 182) no Hoare annotation was computed. [2021-11-23 03:29:33,101 INFO L854 garLoopResultBuilder]: At program point L181-3(lines 181 182) the Hoare annotation is: false [2021-11-23 03:29:33,101 INFO L858 garLoopResultBuilder]: For program point L181-4(lines 181 182) no Hoare annotation was computed. [2021-11-23 03:29:33,101 INFO L858 garLoopResultBuilder]: For program point L314-2(lines 314 318) no Hoare annotation was computed. [2021-11-23 03:29:33,101 INFO L858 garLoopResultBuilder]: For program point L215(lines 215 221) no Hoare annotation was computed. [2021-11-23 03:29:33,101 INFO L854 garLoopResultBuilder]: At program point L314-3(lines 314 318) the Hoare annotation is: false [2021-11-23 03:29:33,101 INFO L858 garLoopResultBuilder]: For program point L248-2(lines 248 253) no Hoare annotation was computed. [2021-11-23 03:29:33,101 INFO L858 garLoopResultBuilder]: For program point L314-4(lines 314 318) no Hoare annotation was computed. [2021-11-23 03:29:33,102 INFO L854 garLoopResultBuilder]: At program point L248-3(lines 248 253) the Hoare annotation is: false [2021-11-23 03:29:33,102 INFO L858 garLoopResultBuilder]: For program point L248-4(lines 248 253) no Hoare annotation was computed. [2021-11-23 03:29:33,102 INFO L858 garLoopResultBuilder]: For program point L480-1(lines 480 481) no Hoare annotation was computed. [2021-11-23 03:29:33,102 INFO L854 garLoopResultBuilder]: At program point L480-3(lines 480 481) the Hoare annotation is: false [2021-11-23 03:29:33,102 INFO L858 garLoopResultBuilder]: For program point L480-4(lines 480 481) no Hoare annotation was computed. [2021-11-23 03:29:33,102 INFO L858 garLoopResultBuilder]: For program point L216(lines 216 219) no Hoare annotation was computed. [2021-11-23 03:29:33,102 INFO L858 garLoopResultBuilder]: For program point L51(lines 51 55) no Hoare annotation was computed. [2021-11-23 03:29:33,102 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 16 57) no Hoare annotation was computed. [2021-11-23 03:29:33,103 INFO L858 garLoopResultBuilder]: For program point L51-2(lines 51 55) no Hoare annotation was computed. [2021-11-23 03:29:33,103 INFO L854 garLoopResultBuilder]: At program point L613(lines 604 614) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |ULTIMATE.start_main_#t~short141#1| (= |ULTIMATE.start_tan_float_#res#1| .cse0) (= (fp ((_ extract 31 31) |ULTIMATE.start___signbit_float_~w~2#1|) ((_ extract 30 23) |ULTIMATE.start___signbit_float_~w~2#1|) ((_ extract 22 0) |ULTIMATE.start___signbit_float_~w~2#1|)) .cse0) (= |ULTIMATE.start_tan_float_~x#1| .cse0) (= |ULTIMATE.start___signbit_float_#res#1| (_ bv1 32)) (= .cse0 |ULTIMATE.start___signbit_float_~x#1|) (= |ULTIMATE.start_main_~res~0#1| .cse0))) [2021-11-23 03:29:33,103 INFO L858 garLoopResultBuilder]: For program point L415(lines 415 461) no Hoare annotation was computed. [2021-11-23 03:29:33,103 INFO L858 garLoopResultBuilder]: For program point L250-2(lines 250 251) no Hoare annotation was computed. [2021-11-23 03:29:33,103 INFO L854 garLoopResultBuilder]: At program point L250-3(lines 250 251) the Hoare annotation is: false [2021-11-23 03:29:33,104 INFO L858 garLoopResultBuilder]: For program point L250-4(lines 250 251) no Hoare annotation was computed. [2021-11-23 03:29:33,104 INFO L858 garLoopResultBuilder]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2021-11-23 03:29:33,104 INFO L854 garLoopResultBuilder]: At program point L19-2(lines 19 23) the Hoare annotation is: false [2021-11-23 03:29:33,104 INFO L858 garLoopResultBuilder]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2021-11-23 03:29:33,104 INFO L854 garLoopResultBuilder]: At program point L416(line 416) the Hoare annotation is: false [2021-11-23 03:29:33,105 INFO L858 garLoopResultBuilder]: For program point L416-1(line 416) no Hoare annotation was computed. [2021-11-23 03:29:33,105 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 03:29:33,105 INFO L858 garLoopResultBuilder]: For program point L284-2(lines 284 288) no Hoare annotation was computed. [2021-11-23 03:29:33,105 INFO L854 garLoopResultBuilder]: At program point L284-3(lines 284 288) the Hoare annotation is: false [2021-11-23 03:29:33,105 INFO L858 garLoopResultBuilder]: For program point L284-4(lines 284 288) no Hoare annotation was computed. [2021-11-23 03:29:33,106 INFO L858 garLoopResultBuilder]: For program point L483(lines 483 487) no Hoare annotation was computed. [2021-11-23 03:29:33,106 INFO L858 garLoopResultBuilder]: For program point L285-2(lines 285 286) no Hoare annotation was computed. [2021-11-23 03:29:33,106 INFO L854 garLoopResultBuilder]: At program point L285-3(lines 285 286) the Hoare annotation is: false [2021-11-23 03:29:33,106 INFO L858 garLoopResultBuilder]: For program point L285-4(lines 285 286) no Hoare annotation was computed. [2021-11-23 03:29:33,106 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 389) no Hoare annotation was computed. [2021-11-23 03:29:33,107 INFO L858 garLoopResultBuilder]: For program point L319-2(lines 319 320) no Hoare annotation was computed. [2021-11-23 03:29:33,107 INFO L854 garLoopResultBuilder]: At program point L319-3(lines 319 320) the Hoare annotation is: false [2021-11-23 03:29:33,107 INFO L858 garLoopResultBuilder]: For program point L319-4(lines 290 330) no Hoare annotation was computed. [2021-11-23 03:29:33,107 INFO L854 garLoopResultBuilder]: At program point L56(lines 16 57) the Hoare annotation is: false [2021-11-23 03:29:33,107 INFO L858 garLoopResultBuilder]: For program point L585-1(lines 585 589) no Hoare annotation was computed. [2021-11-23 03:29:33,107 INFO L854 garLoopResultBuilder]: At program point L585-2(lines 585 589) the Hoare annotation is: (= |ULTIMATE.start_tan_float_~x#1| (fp.neg (_ +zero 8 24))) [2021-11-23 03:29:33,108 INFO L858 garLoopResultBuilder]: For program point L585-3(lines 585 589) no Hoare annotation was computed. [2021-11-23 03:29:33,108 INFO L854 garLoopResultBuilder]: At program point L255(lines 162 332) the Hoare annotation is: false [2021-11-23 03:29:33,108 INFO L858 garLoopResultBuilder]: For program point L189-2(lines 189 193) no Hoare annotation was computed. [2021-11-23 03:29:33,108 INFO L854 garLoopResultBuilder]: At program point L189-3(lines 189 193) the Hoare annotation is: false [2021-11-23 03:29:33,108 INFO L854 garLoopResultBuilder]: At program point L189-4(lines 189 193) the Hoare annotation is: false [2021-11-23 03:29:33,109 INFO L858 garLoopResultBuilder]: For program point L421(line 421) no Hoare annotation was computed. [2021-11-23 03:29:33,109 INFO L858 garLoopResultBuilder]: For program point L421-2(lines 421 453) no Hoare annotation was computed. [2021-11-23 03:29:33,109 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 03:29:33,109 INFO L858 garLoopResultBuilder]: For program point L223-1(lines 210 238) no Hoare annotation was computed. [2021-11-23 03:29:33,109 INFO L854 garLoopResultBuilder]: At program point L488(lines 373 489) the Hoare annotation is: false [2021-11-23 03:29:33,110 INFO L858 garLoopResultBuilder]: For program point L455(lines 455 460) no Hoare annotation was computed. [2021-11-23 03:29:33,110 INFO L854 garLoopResultBuilder]: At program point L290(lines 290 330) the Hoare annotation is: false [2021-11-23 03:29:33,110 INFO L854 garLoopResultBuilder]: At program point L224(lines 224 231) the Hoare annotation is: false [2021-11-23 03:29:33,110 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 50) no Hoare annotation was computed. [2021-11-23 03:29:33,110 INFO L858 garLoopResultBuilder]: For program point L390(lines 390 414) no Hoare annotation was computed. [2021-11-23 03:29:33,110 INFO L858 garLoopResultBuilder]: For program point L291(line 291) no Hoare annotation was computed. [2021-11-23 03:29:33,111 INFO L858 garLoopResultBuilder]: For program point L225(line 225) no Hoare annotation was computed. [2021-11-23 03:29:33,111 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 44) no Hoare annotation was computed. [2021-11-23 03:29:33,111 INFO L858 garLoopResultBuilder]: For program point L391(lines 391 413) no Hoare annotation was computed. [2021-11-23 03:29:33,111 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 03:29:33,111 INFO L858 garLoopResultBuilder]: For program point L28(lines 28 34) no Hoare annotation was computed. [2021-11-23 03:29:33,112 INFO L858 garLoopResultBuilder]: For program point L293-2(lines 293 294) no Hoare annotation was computed. [2021-11-23 03:29:33,112 INFO L854 garLoopResultBuilder]: At program point L293-3(lines 293 294) the Hoare annotation is: false [2021-11-23 03:29:33,112 INFO L858 garLoopResultBuilder]: For program point L293-4(lines 290 330) no Hoare annotation was computed. [2021-11-23 03:29:33,112 INFO L858 garLoopResultBuilder]: For program point L29(lines 29 33) no Hoare annotation was computed. [2021-11-23 03:29:33,112 INFO L858 garLoopResultBuilder]: For program point L393(lines 393 400) no Hoare annotation was computed. [2021-11-23 03:29:33,113 INFO L858 garLoopResultBuilder]: For program point L393-2(lines 393 400) no Hoare annotation was computed. [2021-11-23 03:29:33,113 INFO L858 garLoopResultBuilder]: For program point L228(line 228) no Hoare annotation was computed. [2021-11-23 03:29:33,113 INFO L858 garLoopResultBuilder]: For program point L195(line 195) no Hoare annotation was computed. [2021-11-23 03:29:33,113 INFO L858 garLoopResultBuilder]: For program point L592(lines 592 601) no Hoare annotation was computed. [2021-11-23 03:29:33,113 INFO L858 garLoopResultBuilder]: For program point L427-1(lines 427 431) no Hoare annotation was computed. [2021-11-23 03:29:33,113 INFO L854 garLoopResultBuilder]: At program point L427-2(lines 427 431) the Hoare annotation is: false [2021-11-23 03:29:33,114 INFO L858 garLoopResultBuilder]: For program point L427-3(lines 427 431) no Hoare annotation was computed. [2021-11-23 03:29:33,114 INFO L858 garLoopResultBuilder]: For program point L295-1(line 295) no Hoare annotation was computed. [2021-11-23 03:29:33,114 INFO L858 garLoopResultBuilder]: For program point L262-1(lines 262 265) no Hoare annotation was computed. [2021-11-23 03:29:33,114 INFO L854 garLoopResultBuilder]: At program point L262-3(lines 262 265) the Hoare annotation is: false [2021-11-23 03:29:33,114 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-11-23 03:29:33,115 INFO L854 garLoopResultBuilder]: At program point L593(line 593) the Hoare annotation is: (= |ULTIMATE.start_tan_float_~x#1| (fp.neg (_ +zero 8 24))) [2021-11-23 03:29:33,115 INFO L858 garLoopResultBuilder]: For program point L593-1(line 593) no Hoare annotation was computed. [2021-11-23 03:29:33,115 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 03:29:33,115 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 629) no Hoare annotation was computed. [2021-11-23 03:29:33,115 INFO L858 garLoopResultBuilder]: For program point L297(line 297) no Hoare annotation was computed. [2021-11-23 03:29:33,116 INFO L858 garLoopResultBuilder]: For program point L297-2(line 297) no Hoare annotation was computed. [2021-11-23 03:29:33,116 INFO L858 garLoopResultBuilder]: For program point L628(line 628) no Hoare annotation was computed. [2021-11-23 03:29:33,116 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 601) no Hoare annotation was computed. [2021-11-23 03:29:33,116 INFO L858 garLoopResultBuilder]: For program point L628-2(lines 628 631) no Hoare annotation was computed. [2021-11-23 03:29:33,116 INFO L858 garLoopResultBuilder]: For program point L463(lines 463 466) no Hoare annotation was computed. [2021-11-23 03:29:33,117 INFO L854 garLoopResultBuilder]: At program point L331(lines 161 332) the Hoare annotation is: false [2021-11-23 03:29:33,117 INFO L858 garLoopResultBuilder]: For program point L298(line 298) no Hoare annotation was computed. [2021-11-23 03:29:33,117 INFO L858 garLoopResultBuilder]: For program point L629(line 629) no Hoare annotation was computed. [2021-11-23 03:29:33,117 INFO L858 garLoopResultBuilder]: For program point L200(lines 200 208) no Hoare annotation was computed. [2021-11-23 03:29:33,117 INFO L861 garLoopResultBuilder]: At program point L122(line 122) the Hoare annotation is: true [2021-11-23 03:29:33,118 INFO L858 garLoopResultBuilder]: For program point L122-1(line 122) no Hoare annotation was computed. [2021-11-23 03:29:33,118 INFO L858 garLoopResultBuilder]: For program point L110(lines 110 111) no Hoare annotation was computed. [2021-11-23 03:29:33,118 INFO L858 garLoopResultBuilder]: For program point L106(lines 106 107) no Hoare annotation was computed. [2021-11-23 03:29:33,118 INFO L858 garLoopResultBuilder]: For program point L98(lines 98 108) no Hoare annotation was computed. [2021-11-23 03:29:33,118 INFO L858 garLoopResultBuilder]: For program point L98-2(lines 98 108) no Hoare annotation was computed. [2021-11-23 03:29:33,119 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 95) no Hoare annotation was computed. [2021-11-23 03:29:33,119 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2021-11-23 03:29:33,119 INFO L861 garLoopResultBuilder]: At program point L127-2(lines 127 131) the Hoare annotation is: true [2021-11-23 03:29:33,119 INFO L858 garLoopResultBuilder]: For program point L127-3(lines 127 131) no Hoare annotation was computed. [2021-11-23 03:29:33,119 INFO L861 garLoopResultBuilder]: At program point L111(line 111) the Hoare annotation is: true [2021-11-23 03:29:33,120 INFO L858 garLoopResultBuilder]: For program point L111-1(line 111) no Hoare annotation was computed. [2021-11-23 03:29:33,120 INFO L858 garLoopResultBuilder]: For program point scalbn_floatFINAL(lines 83 133) no Hoare annotation was computed. [2021-11-23 03:29:33,120 INFO L861 garLoopResultBuilder]: At program point L124(line 124) the Hoare annotation is: true [2021-11-23 03:29:33,120 INFO L858 garLoopResultBuilder]: For program point L124-1(line 124) no Hoare annotation was computed. [2021-11-23 03:29:33,121 INFO L858 garLoopResultBuilder]: For program point L120(lines 120 125) no Hoare annotation was computed. [2021-11-23 03:29:33,122 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2021-11-23 03:29:33,122 INFO L861 garLoopResultBuilder]: At program point L87-2(lines 87 91) the Hoare annotation is: true [2021-11-23 03:29:33,122 INFO L858 garLoopResultBuilder]: For program point L87-3(lines 87 91) no Hoare annotation was computed. [2021-11-23 03:29:33,122 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 119) no Hoare annotation was computed. [2021-11-23 03:29:33,122 INFO L858 garLoopResultBuilder]: For program point scalbn_floatEXIT(lines 83 133) no Hoare annotation was computed. [2021-11-23 03:29:33,123 INFO L861 garLoopResultBuilder]: At program point scalbn_floatENTRY(lines 83 133) the Hoare annotation is: true [2021-11-23 03:29:33,123 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 100 104) no Hoare annotation was computed. [2021-11-23 03:29:33,123 INFO L861 garLoopResultBuilder]: At program point L100-2(lines 100 104) the Hoare annotation is: true [2021-11-23 03:29:33,123 INFO L858 garLoopResultBuilder]: For program point L100-3(lines 100 104) no Hoare annotation was computed. [2021-11-23 03:29:33,123 INFO L858 garLoopResultBuilder]: For program point L96(lines 96 97) no Hoare annotation was computed. [2021-11-23 03:29:33,124 INFO L858 garLoopResultBuilder]: For program point L121(lines 121 124) no Hoare annotation was computed. [2021-11-23 03:29:33,124 INFO L858 garLoopResultBuilder]: For program point L113-1(lines 113 117) no Hoare annotation was computed. [2021-11-23 03:29:33,124 INFO L861 garLoopResultBuilder]: At program point L113-2(lines 113 117) the Hoare annotation is: true [2021-11-23 03:29:33,124 INFO L858 garLoopResultBuilder]: For program point L113-3(lines 113 117) no Hoare annotation was computed. [2021-11-23 03:29:33,128 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:29:33,130 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:29:33,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,153 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,153 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,154 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,154 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,155 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,155 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,155 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,157 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,157 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:29:33 BoogieIcfgContainer [2021-11-23 03:29:33,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:29:33,160 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:29:33,160 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:29:33,160 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:29:33,161 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:28:25" (3/4) ... [2021-11-23 03:29:33,164 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 03:29:33,185 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2021-11-23 03:29:33,185 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_float [2021-11-23 03:29:33,186 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure scalbn_float [2021-11-23 03:29:33,186 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __kernel_tanf [2021-11-23 03:29:33,225 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2021-11-23 03:29:33,230 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2021-11-23 03:29:33,233 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-23 03:29:33,236 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 03:29:33,275 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x && iy == \old(iy) [2021-11-23 03:29:33,275 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2021-11-23 03:29:33,276 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((aux-res == -0.0f && __signbit_float(res) == 1-aux && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2021-11-23 03:29:33,277 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((aux-res == -0.0f && __signbit_float(res) == 1-aux && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && \result == 1bv32) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2021-11-23 03:29:33,280 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __kernel_tanf_~hx~2 : bv32 :: ~fp~LONGDOUBLE(__kernel_tanf_~hx~2[31:31], __kernel_tanf_~hx~2[30:23], __kernel_tanf_~hx~2[22:0]) == \old(x) && !~bvslt32(~bvand32(2147483647bv32, __kernel_tanf_~hx~2), 830472192bv32)) [2021-11-23 03:29:33,595 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 03:29:33,595 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:29:33,596 INFO L158 Benchmark]: Toolchain (without parser) took 107394.50ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 61.6MB in the beginning and 48.2MB in the end (delta: 13.4MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. [2021-11-23 03:29:33,596 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 79.7MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:29:33,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 929.58ms. Allocated memory is still 79.7MB. Free memory was 61.4MB in the beginning and 40.0MB in the end (delta: 21.4MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2021-11-23 03:29:33,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 164.71ms. Allocated memory is still 79.7MB. Free memory was 40.0MB in the beginning and 56.8MB in the end (delta: -16.9MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2021-11-23 03:29:33,598 INFO L158 Benchmark]: Boogie Preprocessor took 209.14ms. Allocated memory is still 79.7MB. Free memory was 56.8MB in the beginning and 49.2MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 03:29:33,598 INFO L158 Benchmark]: RCFGBuilder took 37775.27ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 49.2MB in the beginning and 57.4MB in the end (delta: -8.3MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2021-11-23 03:29:33,599 INFO L158 Benchmark]: TraceAbstraction took 67871.03ms. Allocated memory is still 102.8MB. Free memory was 56.8MB in the beginning and 38.8MB in the end (delta: 18.0MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2021-11-23 03:29:33,599 INFO L158 Benchmark]: Witness Printer took 435.18ms. Allocated memory is still 102.8MB. Free memory was 38.8MB in the beginning and 48.2MB in the end (delta: -9.4MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2021-11-23 03:29:33,601 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 79.7MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 929.58ms. Allocated memory is still 79.7MB. Free memory was 61.4MB in the beginning and 40.0MB in the end (delta: 21.4MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 164.71ms. Allocated memory is still 79.7MB. Free memory was 40.0MB in the beginning and 56.8MB in the end (delta: -16.9MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 209.14ms. Allocated memory is still 79.7MB. Free memory was 56.8MB in the beginning and 49.2MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 37775.27ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 49.2MB in the beginning and 57.4MB in the end (delta: -8.3MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * TraceAbstraction took 67871.03ms. Allocated memory is still 102.8MB. Free memory was 56.8MB in the beginning and 38.8MB in the end (delta: 18.0MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * Witness Printer took 435.18ms. Allocated memory is still 102.8MB. Free memory was 38.8MB in the beginning and 48.2MB in the end (delta: -9.4MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 629]: 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 5 procedures, 247 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 27.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 205 SdHoareTripleChecker+Valid, 23.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 198 mSDsluCounter, 1790 SdHoareTripleChecker+Invalid, 23.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 118 IncrementalHoareTripleChecker+Unchecked, 1201 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 240 IncrementalHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 589 mSDtfsCounter, 240 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 205 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=0, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 61 LocationsWithAnnotation, 150 PreInvPairs, 163 NumberOfFragments, 170 HoareAnnotationTreeSize, 150 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 61 FomulaSimplificationsInter, 48 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 13.7s SatisfiabilityAnalysisTime, 22.0s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 264 ConstructedInterpolants, 41 QuantifiedInterpolants, 1668 SizeOfPredicates, 35 NumberOfNonLiveVariables, 2729 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 469]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: (((((aux-res == -0.0f && __signbit_float(res) == 1-aux && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && \result == 1bv32) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 581]: Loop Invariant Derived loop invariant: \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 224]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: \old(x) == x && iy == \old(iy) - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 242]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 180]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 284]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 319]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 480]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 262]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 279]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 245]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 439]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 213]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: (((aux-res == -0.0f && __signbit_float(res) == 1-aux && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 554]: Loop Invariant [2021-11-23 03:29:33,621 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,621 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,622 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,622 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,622 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,622 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,623 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,623 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] Derived loop invariant: (\exists __kernel_tanf_~hx~2 : bv32 :: ~fp~LONGDOUBLE(__kernel_tanf_~hx~2[31:31], __kernel_tanf_~hx~2[30:23], __kernel_tanf_~hx~2[22:0]) == \old(x) && !~bvslt32(~bvand32(2147483647bv32, __kernel_tanf_~hx~2), 830472192bv32)) - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 427]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 314]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 566]: Loop Invariant [2021-11-23 03:29:33,624 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,624 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,624 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,625 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,625 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,625 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,625 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] [2021-11-23 03:29:33,626 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__kernel_tanf_~hx~2,QUANTIFIED] Derived loop invariant: (\exists __kernel_tanf_~hx~2 : bv32 :: ~fp~LONGDOUBLE(__kernel_tanf_~hx~2[31:31], __kernel_tanf_~hx~2[30:23], __kernel_tanf_~hx~2[22:0]) == \old(x) && !~bvslt32(~bvand32(2147483647bv32, __kernel_tanf_~hx~2), 830472192bv32)) - InvariantResult [Line: 177]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 373]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-23 03:29:33,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f76a8c-a525-4c8b-8cf5-5ebd18a38bdc/bin/utaipan-EQgc7hIp5V/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