./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0470.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0470.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d86a0e82a1dff7546e45854d499305117cc74a754be0317a46d6ee992dd8c94 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:06:01,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:06:01,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:06:01,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:06:01,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:06:01,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:06:01,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:06:01,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:06:01,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:06:01,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:06:01,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:06:01,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:06:01,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:06:01,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:06:01,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:06:01,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:06:01,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:06:01,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:06:01,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:06:01,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:06:01,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:06:01,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:06:01,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:06:01,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:06:01,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:06:01,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:06:01,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:06:01,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:06:01,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:06:01,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:06:01,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:06:01,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:06:01,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:06:01,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:06:01,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:06:01,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:06:01,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:06:01,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:06:01,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:06:01,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:06:01,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:06:01,807 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 07:06:01,856 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:06:01,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:06:01,857 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:06:01,857 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:06:01,858 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:06:01,858 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:06:01,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:06:01,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:06:01,860 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:06:01,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:06:01,860 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:06:01,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:06:01,861 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:06:01,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:06:01,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:06:01,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:06:01,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:06:01,862 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:06:01,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:06:01,862 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:06:01,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:06:01,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:06:01,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:06:01,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:06:01,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:06:01,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:06:01,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:06:01,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:06:01,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:06:01,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:06:01,865 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:06:01,866 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:06:01,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:06:01,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:06:01,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d86a0e82a1dff7546e45854d499305117cc74a754be0317a46d6ee992dd8c94 [2021-11-20 07:06:02,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:06:02,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:06:02,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:06:02,287 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:06:02,288 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:06:02,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-newlib/double_req_bl_0470.c [2021-11-20 07:06:02,373 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/data/71f2d413b/bf0cf1ad5a2e4dfaab26c56dabc7ffc9/FLAG5dac47a84 [2021-11-20 07:06:02,943 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:06:02,944 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/sv-benchmarks/c/float-newlib/double_req_bl_0470.c [2021-11-20 07:06:02,961 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/data/71f2d413b/bf0cf1ad5a2e4dfaab26c56dabc7ffc9/FLAG5dac47a84 [2021-11-20 07:06:03,244 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/data/71f2d413b/bf0cf1ad5a2e4dfaab26c56dabc7ffc9 [2021-11-20 07:06:03,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:06:03,248 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:06:03,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:06:03,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:06:03,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:06:03,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:06:03" (1/1) ... [2021-11-20 07:06:03,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56fad331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03, skipping insertion in model container [2021-11-20 07:06:03,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:06:03" (1/1) ... [2021-11-20 07:06:03,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:06:03,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:06:03,560 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_edeb7d67-0df8-478c-93fc-0007ef777d1f/sv-benchmarks/c/float-newlib/double_req_bl_0470.c[5751,5764] [2021-11-20 07:06:03,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:06:03,576 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:06:03,636 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_edeb7d67-0df8-478c-93fc-0007ef777d1f/sv-benchmarks/c/float-newlib/double_req_bl_0470.c[5751,5764] [2021-11-20 07:06:03,637 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:06:03,651 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:06:03,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03 WrapperNode [2021-11-20 07:06:03,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:06:03,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:06:03,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:06:03,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:06:03,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2021-11-20 07:06:03,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2021-11-20 07:06:03,731 INFO L137 Inliner]: procedures = 17, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 132 [2021-11-20 07:06:03,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:06:03,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:06:03,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:06:03,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:06:03,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2021-11-20 07:06:03,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2021-11-20 07:06:03,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2021-11-20 07:06:03,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2021-11-20 07:06:03,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2021-11-20 07:06:03,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2021-11-20 07:06:03,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2021-11-20 07:06:03,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:06:03,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:06:03,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:06:03,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:06:03,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2021-11-20 07:06:03,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:06:03,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:06:03,807 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:06:03,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:06:03,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:06:03,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:06:03,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:06:03,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-20 07:06:03,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:06:03,874 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2021-11-20 07:06:03,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2021-11-20 07:06:03,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-20 07:06:03,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:06:03,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:06:03,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:06:03,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:06:03,995 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:06:03,996 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:06:04,519 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:06:04,527 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:06:04,527 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-20 07:06:04,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:06:04 BoogieIcfgContainer [2021-11-20 07:06:04,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:06:04,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:06:04,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:06:04,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:06:04,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:06:03" (1/3) ... [2021-11-20 07:06:04,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2c67f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:06:04, skipping insertion in model container [2021-11-20 07:06:04,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (2/3) ... [2021-11-20 07:06:04,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2c67f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:06:04, skipping insertion in model container [2021-11-20 07:06:04,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:06:04" (3/3) ... [2021-11-20 07:06:04,538 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0470.c [2021-11-20 07:06:04,543 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:06:04,544 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:06:04,594 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:06:04,601 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:06:04,601 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:06:04,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 65 states have (on average 1.646153846153846) internal successors, (107), 66 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:06:04,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 07:06:04,627 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:06:04,627 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:06:04,628 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:06:04,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:06:04,633 INFO L85 PathProgramCache]: Analyzing trace with hash 807600397, now seen corresponding path program 1 times [2021-11-20 07:06:04,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:06:04,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892170368] [2021-11-20 07:06:04,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:06:04,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:06:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:06:04,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:06:04,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:06:04,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892170368] [2021-11-20 07:06:04,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892170368] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:06:04,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:06:04,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:06:04,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109502841] [2021-11-20 07:06:04,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:06:04,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 07:06:04,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:06:04,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 07:06:04,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:06:04,829 INFO L87 Difference]: Start difference. First operand has 70 states, 65 states have (on average 1.646153846153846) internal successors, (107), 66 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:06:04,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:06:04,861 INFO L93 Difference]: Finished difference Result 138 states and 222 transitions. [2021-11-20 07:06:04,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:06:04,863 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-20 07:06:04,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:06:04,872 INFO L225 Difference]: With dead ends: 138 [2021-11-20 07:06:04,873 INFO L226 Difference]: Without dead ends: 67 [2021-11-20 07:06:04,877 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 [2021-11-20 07:06:04,881 INFO L933 BasicCegarLoop]: 96 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, 96 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 [2021-11-20 07:06:04,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:06:04,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-11-20 07:06:04,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-11-20 07:06:04,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 63 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:06:04,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 93 transitions. [2021-11-20 07:06:04,927 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 93 transitions. Word has length 11 [2021-11-20 07:06:04,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:06:04,927 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 93 transitions. [2021-11-20 07:06:04,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:06:04,928 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2021-11-20 07:06:04,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 07:06:04,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:06:04,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:06:04,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:06:04,930 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:06:04,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:06:04,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1074852024, now seen corresponding path program 1 times [2021-11-20 07:06:04,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:06:04,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509938785] [2021-11-20 07:06:04,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:06:04,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:06:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:06:04,969 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:06:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:06:05,062 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:06:05,063 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 07:06:05,066 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 07:06:05,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:06:05,074 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-20 07:06:05,077 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:06:05,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:06:05 BoogieIcfgContainer [2021-11-20 07:06:05,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:06:05,144 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:06:05,144 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:06:05,144 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:06:05,144 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:06:04" (3/4) ... [2021-11-20 07:06:05,147 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:06:05,147 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:06:05,148 INFO L158 Benchmark]: Toolchain (without parser) took 1899.84ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 48.6MB in the beginning and 55.8MB in the end (delta: -7.3MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2021-11-20 07:06:05,148 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 86.0MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:06:05,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.63ms. Allocated memory is still 86.0MB. Free memory was 48.4MB in the beginning and 52.9MB in the end (delta: -4.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:06:05,150 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.61ms. Allocated memory is still 86.0MB. Free memory was 52.7MB in the beginning and 50.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:06:05,150 INFO L158 Benchmark]: Boogie Preprocessor took 39.98ms. Allocated memory is still 86.0MB. Free memory was 50.7MB in the beginning and 48.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:06:05,151 INFO L158 Benchmark]: RCFGBuilder took 756.51ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 48.6MB in the beginning and 83.6MB in the end (delta: -35.0MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2021-11-20 07:06:05,152 INFO L158 Benchmark]: TraceAbstraction took 612.35ms. Allocated memory is still 109.1MB. Free memory was 83.1MB in the beginning and 56.4MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-20 07:06:05,152 INFO L158 Benchmark]: Witness Printer took 3.34ms. Allocated memory is still 109.1MB. Free memory was 56.4MB in the beginning and 55.8MB in the end (delta: 610.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:06:05,155 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 86.0MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.63ms. Allocated memory is still 86.0MB. Free memory was 48.4MB in the beginning and 52.9MB in the end (delta: -4.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.61ms. Allocated memory is still 86.0MB. Free memory was 52.7MB in the beginning and 50.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.98ms. Allocated memory is still 86.0MB. Free memory was 50.7MB in the beginning and 48.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 756.51ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 48.6MB in the beginning and 83.6MB in the end (delta: -35.0MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * TraceAbstraction took 612.35ms. Allocated memory is still 109.1MB. Free memory was 83.1MB in the beginning and 56.4MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.34ms. Allocated memory is still 109.1MB. Free memory was 56.4MB in the beginning and 55.8MB in the end (delta: 610.3kB). Peak memory consumption was 2.1MB. 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: 231]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 138, overapproximation of someBinaryArithmeticDOUBLEoperation at line 174, overapproximation of bitwiseAnd at line 156, overapproximation of someBinaryDOUBLEComparisonOperation at line 19. Possible FailurePath: [L21] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L133-L146] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L226] double x = 0.0 / 0.0; [L227] CALL, EXPR __ieee754_acos(x) [L149] double z, p, q, r, w, s, c, df; [L150] __int32_t hx, ix; VAL [\old(x)=4294967296, one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967296] [L152] ieee_double_shape_type gh_u; [L153] gh_u.value = (x) [L154] EXPR gh_u.parts.msw [L154] (hx) = gh_u.parts.msw [L156] ix = hx & 0x7fffffff VAL [\old(x)=4294967296, hx=-1, one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967296] [L157] COND FALSE !(ix >= 0x3ff00000) VAL [\old(x)=4294967296, hx=-1, ix=0, one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967296] [L172] COND TRUE ix < 0x3fe00000 VAL [\old(x)=4294967296, hx=-1, ix=0, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967296] [L173] COND TRUE ix <= 0x3c600000 [L174] return pio2_hi_acos + pio2_lo_acos; VAL [\old(x)=4294967296, hx=-1, ix=0, one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967296] [L227] RET, EXPR __ieee754_acos(x) [L227] double res = __ieee754_acos(x); [L230] CALL, EXPR isnan_double(res) [L19] return x != x; VAL [\old(x)=4294967298, \result=0, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967298] [L230] RET, EXPR isnan_double(res) [L230] COND TRUE !isnan_double(res) [L231] reach_error() VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, res=4294967298, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967296] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 96 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 96 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 07:06:05,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/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_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0470.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d86a0e82a1dff7546e45854d499305117cc74a754be0317a46d6ee992dd8c94 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:06:07,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:06:07,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:06:07,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:06:07,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:06:07,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:06:07,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:06:07,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:06:07,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:06:07,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:06:07,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:06:07,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:06:07,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:06:07,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:06:07,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:06:07,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:06:07,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:06:07,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:06:07,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:06:07,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:06:07,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:06:07,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:06:07,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:06:07,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:06:07,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:06:07,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:06:07,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:06:07,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:06:07,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:06:07,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:06:07,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:06:07,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:06:07,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:06:07,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:06:07,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:06:07,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:06:07,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:06:07,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:06:07,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:06:07,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:06:07,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:06:07,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-20 07:06:07,773 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:06:07,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:06:07,774 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:06:07,774 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:06:07,775 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:06:07,776 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:06:07,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:06:07,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:06:07,777 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:06:07,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:06:07,779 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:06:07,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:06:07,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:06:07,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:06:07,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:06:07,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:06:07,780 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 07:06:07,780 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 07:06:07,781 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 07:06:07,781 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:06:07,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:06:07,781 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:06:07,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:06:07,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:06:07,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:06:07,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:06:07,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:06:07,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:06:07,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:06:07,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:06:07,783 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 07:06:07,784 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 07:06:07,784 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:06:07,785 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:06:07,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:06:07,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:06:07,785 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 07:06:07,785 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_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d86a0e82a1dff7546e45854d499305117cc74a754be0317a46d6ee992dd8c94 [2021-11-20 07:06:08,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:06:08,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:06:08,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:06:08,216 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:06:08,216 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:06:08,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-newlib/double_req_bl_0470.c [2021-11-20 07:06:08,290 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/data/fadd1a69f/2627a5b55eb14f2d9b6d0205cdb9eaef/FLAGc5d6e0ac1 [2021-11-20 07:06:08,844 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:06:08,844 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/sv-benchmarks/c/float-newlib/double_req_bl_0470.c [2021-11-20 07:06:08,857 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/data/fadd1a69f/2627a5b55eb14f2d9b6d0205cdb9eaef/FLAGc5d6e0ac1 [2021-11-20 07:06:09,167 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/data/fadd1a69f/2627a5b55eb14f2d9b6d0205cdb9eaef [2021-11-20 07:06:09,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:06:09,171 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:06:09,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:06:09,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:06:09,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:06:09,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:06:09" (1/1) ... [2021-11-20 07:06:09,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55de56b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:09, skipping insertion in model container [2021-11-20 07:06:09,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:06:09" (1/1) ... [2021-11-20 07:06:09,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:06:09,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:06:09,413 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_edeb7d67-0df8-478c-93fc-0007ef777d1f/sv-benchmarks/c/float-newlib/double_req_bl_0470.c[5751,5764] [2021-11-20 07:06:09,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:06:09,428 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:06:09,525 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_edeb7d67-0df8-478c-93fc-0007ef777d1f/sv-benchmarks/c/float-newlib/double_req_bl_0470.c[5751,5764] [2021-11-20 07:06:09,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:06:09,560 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:06:09,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:09 WrapperNode [2021-11-20 07:06:09,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:06:09,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:06:09,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:06:09,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:06:09,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:09" (1/1) ... [2021-11-20 07:06:09,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:09" (1/1) ... [2021-11-20 07:06:09,617 INFO L137 Inliner]: procedures = 20, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 132 [2021-11-20 07:06:09,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:06:09,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:06:09,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:06:09,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:06:09,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:09" (1/1) ... [2021-11-20 07:06:09,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:09" (1/1) ... [2021-11-20 07:06:09,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:09" (1/1) ... [2021-11-20 07:06:09,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:09" (1/1) ... [2021-11-20 07:06:09,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:09" (1/1) ... [2021-11-20 07:06:09,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:09" (1/1) ... [2021-11-20 07:06:09,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:09" (1/1) ... [2021-11-20 07:06:09,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:06:09,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:06:09,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:06:09,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:06:09,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:09" (1/1) ... [2021-11-20 07:06:09,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:06:09,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:06:09,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:06:09,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:06:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:06:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-20 07:06:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-20 07:06:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 07:06:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:06:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2021-11-20 07:06:09,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2021-11-20 07:06:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-20 07:06:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:06:09,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:06:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-20 07:06:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:06:09,925 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:06:09,927 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:06:28,683 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:06:28,692 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:06:28,692 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-20 07:06:28,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:06:28 BoogieIcfgContainer [2021-11-20 07:06:28,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:06:28,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:06:28,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:06:28,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:06:28,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:06:09" (1/3) ... [2021-11-20 07:06:28,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7236b315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:06:28, skipping insertion in model container [2021-11-20 07:06:28,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:09" (2/3) ... [2021-11-20 07:06:28,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7236b315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:06:28, skipping insertion in model container [2021-11-20 07:06:28,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:06:28" (3/3) ... [2021-11-20 07:06:28,704 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0470.c [2021-11-20 07:06:28,710 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:06:28,711 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:06:28,757 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:06:28,765 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:06:28,765 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:06:28,784 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 65 states have (on average 1.646153846153846) internal successors, (107), 66 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:06:28,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 07:06:28,789 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:06:28,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:06:28,790 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:06:28,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:06:28,796 INFO L85 PathProgramCache]: Analyzing trace with hash 807600397, now seen corresponding path program 1 times [2021-11-20 07:06:28,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:06:28,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178778451] [2021-11-20 07:06:28,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:06:28,810 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:06:28,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:06:28,816 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:06:28,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 07:06:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:06:29,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 07:06:29,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:06:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:06:30,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:06:30,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:06:30,481 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:06:30,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178778451] [2021-11-20 07:06:30,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [178778451] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:06:30,482 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:06:30,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 07:06:30,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343347407] [2021-11-20 07:06:30,485 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:06:30,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 07:06:30,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:06:30,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 07:06:30,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:06:30,532 INFO L87 Difference]: Start difference. First operand has 70 states, 65 states have (on average 1.646153846153846) internal successors, (107), 66 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:06:30,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:06:30,581 INFO L93 Difference]: Finished difference Result 138 states and 222 transitions. [2021-11-20 07:06:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:06:30,583 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-20 07:06:30,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:06:30,595 INFO L225 Difference]: With dead ends: 138 [2021-11-20 07:06:30,595 INFO L226 Difference]: Without dead ends: 67 [2021-11-20 07:06:30,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:06:30,608 INFO L933 BasicCegarLoop]: 96 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, 96 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 [2021-11-20 07:06:30,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:06:30,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-11-20 07:06:30,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-11-20 07:06:30,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 63 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:06:30,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 93 transitions. [2021-11-20 07:06:30,672 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 93 transitions. Word has length 11 [2021-11-20 07:06:30,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:06:30,672 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 93 transitions. [2021-11-20 07:06:30,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:06:30,673 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2021-11-20 07:06:30,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 07:06:30,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:06:30,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:06:30,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:06:30,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:06:30,898 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:06:30,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:06:30,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1074852024, now seen corresponding path program 1 times [2021-11-20 07:06:30,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:06:30,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282419983] [2021-11-20 07:06:30,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:06:30,900 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:06:30,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:06:30,902 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:06:30,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 07:06:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:06:31,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 07:06:31,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:06:32,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:06:32,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:06:34,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:06:34,569 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:06:34,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282419983] [2021-11-20 07:06:34,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282419983] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:06:34,570 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:06:34,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 07:06:34,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361240309] [2021-11-20 07:06:34,571 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:06:34,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 07:06:34,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:06:34,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 07:06:34,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:06:34,574 INFO L87 Difference]: Start difference. First operand 67 states and 93 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:06:36,215 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:36,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:06:36,220 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2021-11-20 07:06:36,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:06:36,240 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-20 07:06:36,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:06:36,241 INFO L225 Difference]: With dead ends: 72 [2021-11-20 07:06:36,241 INFO L226 Difference]: Without dead ends: 15 [2021-11-20 07:06:36,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:06:36,245 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:06:36,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 11 Unchecked, 1.6s Time] [2021-11-20 07:06:36,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-20 07:06:36,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-20 07:06:36,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 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) [2021-11-20 07:06:36,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-11-20 07:06:36,250 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 12 [2021-11-20 07:06:36,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:06:36,251 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-11-20 07:06:36,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:06:36,252 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-11-20 07:06:36,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-20 07:06:36,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:06:36,253 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:06:36,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:06:36,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:06:36,474 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:06:36,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:06:36,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1734315249, now seen corresponding path program 1 times [2021-11-20 07:06:36,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:06:36,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104392134] [2021-11-20 07:06:36,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:06:36,476 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:06:36,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:06:36,485 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:06:36,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 07:06:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:06:37,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-20 07:06:37,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:06:39,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:06:39,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:06:41,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:06:41,842 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:06:41,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104392134] [2021-11-20 07:06:41,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1104392134] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:06:41,843 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:06:41,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2021-11-20 07:06:41,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119555343] [2021-11-20 07:06:41,843 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:06:41,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:06:41,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:06:41,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:06:41,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:06:41,845 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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) [2021-11-20 07:06:45,773 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:47,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:06:47,086 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-11-20 07:06:47,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:06:47,087 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-20 07:06:47,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:06:47,088 INFO L225 Difference]: With dead ends: 20 [2021-11-20 07:06:47,088 INFO L226 Difference]: Without dead ends: 15 [2021-11-20 07:06:47,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-20 07:06:47,090 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 30 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:06:47,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 44 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-20 07:06:47,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-20 07:06:47,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-20 07:06:47,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:06:47,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-11-20 07:06:47,095 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2021-11-20 07:06:47,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:06:47,096 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-11-20 07:06:47,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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) [2021-11-20 07:06:47,096 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-11-20 07:06:47,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-20 07:06:47,097 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:06:47,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:06:47,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:06:47,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:06:47,298 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:06:47,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:06:47,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1833394996, now seen corresponding path program 1 times [2021-11-20 07:06:47,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:06:47,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262131119] [2021-11-20 07:06:47,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:06:47,300 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:06:47,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:06:47,304 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:06:47,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 07:06:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:06:47,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 07:06:47,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:06:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:06:49,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:06:50,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:06:50,981 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:06:50,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262131119] [2021-11-20 07:06:50,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262131119] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:06:50,981 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:06:50,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 07:06:50,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866592053] [2021-11-20 07:06:50,982 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:06:50,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 07:06:50,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:06:50,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 07:06:50,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:06:50,986 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:06:50,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:06:50,989 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-11-20 07:06:50,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:06:50,990 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-20 07:06:50,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:06:50,990 INFO L225 Difference]: With dead ends: 15 [2021-11-20 07:06:50,990 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 07:06:50,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:06:50,991 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:06:50,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2021-11-20 07:06:50,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 07:06:50,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 07:06:50,993 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) [2021-11-20 07:06:50,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 07:06:50,993 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-11-20 07:06:50,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:06:50,993 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:06:50,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:06:50,993 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 07:06:50,993 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 07:06:50,995 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 07:06:51,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:06:51,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:06:51,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 07:06:52,354 INFO L861 garLoopResultBuilder]: At program point __ieee754_sqrtENTRY(lines 23 131) the Hoare annotation is: true [2021-11-20 07:06:52,354 INFO L858 garLoopResultBuilder]: For program point __ieee754_sqrtFINAL(lines 23 131) no Hoare annotation was computed. [2021-11-20 07:06:52,354 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 95) no Hoare annotation was computed. [2021-11-20 07:06:52,354 INFO L858 garLoopResultBuilder]: For program point L94-2(lines 94 95) no Hoare annotation was computed. [2021-11-20 07:06:52,355 INFO L861 garLoopResultBuilder]: At program point L86-2(lines 86 102) the Hoare annotation is: true [2021-11-20 07:06:52,355 INFO L858 garLoopResultBuilder]: For program point L86-3(lines 23 131) no Hoare annotation was computed. [2021-11-20 07:06:52,355 INFO L858 garLoopResultBuilder]: For program point L111(lines 111 116) no Hoare annotation was computed. [2021-11-20 07:06:52,355 INFO L858 garLoopResultBuilder]: For program point L62(lines 62 65) no Hoare annotation was computed. [2021-11-20 07:06:52,356 INFO L858 garLoopResultBuilder]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2021-11-20 07:06:52,356 INFO L858 garLoopResultBuilder]: For program point L62-2(lines 62 65) no Hoare annotation was computed. [2021-11-20 07:06:52,356 INFO L861 garLoopResultBuilder]: At program point L29-2(lines 29 34) the Hoare annotation is: true [2021-11-20 07:06:52,356 INFO L858 garLoopResultBuilder]: For program point L29-3(lines 23 131) no Hoare annotation was computed. [2021-11-20 07:06:52,357 INFO L858 garLoopResultBuilder]: For program point L54-2(lines 54 55) no Hoare annotation was computed. [2021-11-20 07:06:52,357 INFO L861 garLoopResultBuilder]: At program point L54-3(lines 54 55) the Hoare annotation is: true [2021-11-20 07:06:52,357 INFO L858 garLoopResultBuilder]: For program point L54-4(lines 54 55) no Hoare annotation was computed. [2021-11-20 07:06:52,357 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 113) no Hoare annotation was computed. [2021-11-20 07:06:52,357 INFO L858 garLoopResultBuilder]: For program point L112-2(lines 112 113) no Hoare annotation was computed. [2021-11-20 07:06:52,358 INFO L858 garLoopResultBuilder]: For program point L104(lines 104 118) no Hoare annotation was computed. [2021-11-20 07:06:52,358 INFO L858 garLoopResultBuilder]: For program point L121(lines 121 122) no Hoare annotation was computed. [2021-11-20 07:06:52,358 INFO L858 garLoopResultBuilder]: For program point L121-2(lines 121 122) no Hoare annotation was computed. [2021-11-20 07:06:52,358 INFO L858 garLoopResultBuilder]: For program point L89(lines 89 98) no Hoare annotation was computed. [2021-11-20 07:06:52,359 INFO L858 garLoopResultBuilder]: For program point L89-2(lines 89 98) no Hoare annotation was computed. [2021-11-20 07:06:52,359 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 59) no Hoare annotation was computed. [2021-11-20 07:06:52,359 INFO L858 garLoopResultBuilder]: For program point L48-2(lines 48 59) no Hoare annotation was computed. [2021-11-20 07:06:52,359 INFO L858 garLoopResultBuilder]: For program point L106(lines 106 117) no Hoare annotation was computed. [2021-11-20 07:06:52,359 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 45) no Hoare annotation was computed. [2021-11-20 07:06:52,360 INFO L861 garLoopResultBuilder]: At program point L73-2(lines 73 83) the Hoare annotation is: true [2021-11-20 07:06:52,360 INFO L858 garLoopResultBuilder]: For program point L40-2(lines 40 45) no Hoare annotation was computed. [2021-11-20 07:06:52,360 INFO L858 garLoopResultBuilder]: For program point L73-3(lines 73 83) no Hoare annotation was computed. [2021-11-20 07:06:52,360 INFO L858 garLoopResultBuilder]: For program point __ieee754_sqrtEXIT(lines 23 131) no Hoare annotation was computed. [2021-11-20 07:06:52,361 INFO L861 garLoopResultBuilder]: At program point L49-2(lines 49 53) the Hoare annotation is: true [2021-11-20 07:06:52,361 INFO L858 garLoopResultBuilder]: For program point L49-3(lines 49 53) no Hoare annotation was computed. [2021-11-20 07:06:52,361 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 44) no Hoare annotation was computed. [2021-11-20 07:06:52,361 INFO L858 garLoopResultBuilder]: For program point L91(lines 91 92) no Hoare annotation was computed. [2021-11-20 07:06:52,361 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 124 129) no Hoare annotation was computed. [2021-11-20 07:06:52,362 INFO L861 garLoopResultBuilder]: At program point L124-2(lines 124 129) the Hoare annotation is: true [2021-11-20 07:06:52,362 INFO L858 garLoopResultBuilder]: For program point L91-2(lines 91 92) no Hoare annotation was computed. [2021-11-20 07:06:52,362 INFO L858 garLoopResultBuilder]: For program point L124-3(lines 124 129) no Hoare annotation was computed. [2021-11-20 07:06:52,362 INFO L858 garLoopResultBuilder]: For program point L108(lines 108 116) no Hoare annotation was computed. [2021-11-20 07:06:52,363 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 79) no Hoare annotation was computed. [2021-11-20 07:06:52,363 INFO L858 garLoopResultBuilder]: For program point L75-2(lines 75 79) no Hoare annotation was computed. [2021-11-20 07:06:52,363 INFO L858 garLoopResultBuilder]: For program point L43(lines 43 44) no Hoare annotation was computed. [2021-11-20 07:06:52,363 INFO L854 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: false [2021-11-20 07:06:52,363 INFO L858 garLoopResultBuilder]: For program point L192-1(line 192) no Hoare annotation was computed. [2021-11-20 07:06:52,364 INFO L858 garLoopResultBuilder]: For program point L159-1(lines 159 163) no Hoare annotation was computed. [2021-11-20 07:06:52,364 INFO L854 garLoopResultBuilder]: At program point L159-2(lines 159 163) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_10| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_10|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_10|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_10|))) (= |ULTIMATE.start___ieee754_acos_~ix~0#1| (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_10|))))) (= |ULTIMATE.start___ieee754_acos_~x#1| (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-20 07:06:52,364 INFO L858 garLoopResultBuilder]: For program point L159-3(lines 157 171) no Hoare annotation was computed. [2021-11-20 07:06:52,364 INFO L858 garLoopResultBuilder]: For program point L184(lines 184 216) no Hoare annotation was computed. [2021-11-20 07:06:52,365 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 151 155) no Hoare annotation was computed. [2021-11-20 07:06:52,365 INFO L854 garLoopResultBuilder]: At program point L151-2(lines 151 155) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acos_~x#1| (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-20 07:06:52,365 INFO L858 garLoopResultBuilder]: For program point L151-3(lines 151 155) no Hoare annotation was computed. [2021-11-20 07:06:52,365 INFO L854 garLoopResultBuilder]: At program point L19(line 19) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res#1|) (= |ULTIMATE.start___ieee754_acos_~x#1| (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= |ULTIMATE.start___ieee754_acos_#res#1| (let ((.cse0 (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse1 .cse1)))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-20 07:06:52,366 INFO L858 garLoopResultBuilder]: For program point L172(lines 172 216) no Hoare annotation was computed. [2021-11-20 07:06:52,366 INFO L858 garLoopResultBuilder]: For program point L230(lines 230 233) no Hoare annotation was computed. [2021-11-20 07:06:52,366 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 07:06:52,366 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 07:06:52,366 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 07:06:52,367 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 231) no Hoare annotation was computed. [2021-11-20 07:06:52,367 INFO L858 garLoopResultBuilder]: For program point L173(lines 173 174) no Hoare annotation was computed. [2021-11-20 07:06:52,367 INFO L861 garLoopResultBuilder]: At program point L235(lines 219 236) the Hoare annotation is: true [2021-11-20 07:06:52,367 INFO L858 garLoopResultBuilder]: For program point L231(line 231) no Hoare annotation was computed. [2021-11-20 07:06:52,368 INFO L854 garLoopResultBuilder]: At program point L198(line 198) the Hoare annotation is: false [2021-11-20 07:06:52,368 INFO L858 garLoopResultBuilder]: For program point L165(lines 165 168) no Hoare annotation was computed. [2021-11-20 07:06:52,368 INFO L858 garLoopResultBuilder]: For program point L198-1(line 198) no Hoare annotation was computed. [2021-11-20 07:06:52,368 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 07:06:52,368 INFO L858 garLoopResultBuilder]: For program point L157(lines 157 171) no Hoare annotation was computed. [2021-11-20 07:06:52,369 INFO L854 garLoopResultBuilder]: At program point L215(lines 148 217) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_acos_~x#1| (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= |ULTIMATE.start___ieee754_acos_#res#1| (let ((.cse0 (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse1 .cse1)))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-20 07:06:52,369 INFO L858 garLoopResultBuilder]: For program point L200-1(lines 200 205) no Hoare annotation was computed. [2021-11-20 07:06:52,369 INFO L854 garLoopResultBuilder]: At program point L200-2(lines 200 205) the Hoare annotation is: false [2021-11-20 07:06:52,369 INFO L858 garLoopResultBuilder]: For program point L200-3(lines 200 205) no Hoare annotation was computed. [2021-11-20 07:06:52,373 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-20 07:06:52,375 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:06:52,385 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 07:06:52,387 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] [2021-11-20 07:06:52,387 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] [2021-11-20 07:06:52,387 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] [2021-11-20 07:06:52,387 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] [2021-11-20 07:06:52,390 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,394 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 07:06:52,394 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] [2021-11-20 07:06:52,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] [2021-11-20 07:06:52,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] [2021-11-20 07:06:52,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] [2021-11-20 07:06:52,395 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,396 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,396 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,397 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,397 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,397 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,397 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,398 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,398 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,398 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,399 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,399 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,399 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,399 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,400 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,400 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,400 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,401 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,401 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,401 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,401 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,402 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,402 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,402 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,402 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,403 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,403 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,403 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,404 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,404 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,404 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,404 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,404 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,405 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 07:06:52,406 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,406 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 07:06:52,406 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:06:52 BoogieIcfgContainer [2021-11-20 07:06:52,407 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:06:52,408 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:06:52,408 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:06:52,408 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:06:52,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:06:28" (3/4) ... [2021-11-20 07:06:52,412 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 07:06:52,418 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrt [2021-11-20 07:06:52,426 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2021-11-20 07:06:52,426 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-20 07:06:52,427 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-20 07:06:52,428 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 07:06:52,453 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-20 07:06:52,453 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_skolemized_q#valueAsBitvector_10 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_10[63:63], v_skolemized_q#valueAsBitvector_10[62:52], v_skolemized_q#valueAsBitvector_10[51:0]) && ix == ~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_10[63:32])) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-20 07:06:52,454 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-20 07:06:52,455 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-20 07:06:52,496 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:06:52,496 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:06:52,497 INFO L158 Benchmark]: Toolchain (without parser) took 43325.76ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 50.2MB in the beginning and 43.1MB in the end (delta: 7.2MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2021-11-20 07:06:52,497 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 69.2MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:06:52,498 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.75ms. Allocated memory is still 69.2MB. Free memory was 50.1MB in the beginning and 48.6MB in the end (delta: 1.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-20 07:06:52,498 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.49ms. Allocated memory is still 69.2MB. Free memory was 48.6MB in the beginning and 46.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:06:52,499 INFO L158 Benchmark]: Boogie Preprocessor took 86.02ms. Allocated memory is still 69.2MB. Free memory was 46.5MB in the beginning and 44.1MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:06:52,499 INFO L158 Benchmark]: RCFGBuilder took 18975.46ms. Allocated memory is still 69.2MB. Free memory was 44.1MB in the beginning and 47.6MB in the end (delta: -3.5MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2021-11-20 07:06:52,500 INFO L158 Benchmark]: TraceAbstraction took 23710.41ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 47.3MB in the beginning and 50.6MB in the end (delta: -3.3MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2021-11-20 07:06:52,500 INFO L158 Benchmark]: Witness Printer took 88.73ms. Allocated memory is still 88.1MB. Free memory was 50.6MB in the beginning and 43.1MB in the end (delta: 7.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 07:06:52,502 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 69.2MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.75ms. Allocated memory is still 69.2MB. Free memory was 50.1MB in the beginning and 48.6MB in the end (delta: 1.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.49ms. Allocated memory is still 69.2MB. Free memory was 48.6MB in the beginning and 46.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.02ms. Allocated memory is still 69.2MB. Free memory was 46.5MB in the beginning and 44.1MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 18975.46ms. Allocated memory is still 69.2MB. Free memory was 44.1MB in the beginning and 47.6MB in the end (delta: -3.5MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * TraceAbstraction took 23710.41ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 47.3MB in the beginning and 50.6MB in the end (delta: -3.3MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Witness Printer took 88.73ms. Allocated memory is still 88.1MB. Free memory was 50.6MB in the beginning and 43.1MB in the end (delta: 7.5MB). Peak memory consumption was 6.3MB. 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[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 231]: 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 2 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 220 SdHoareTripleChecker+Invalid, 5.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 19 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 123 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 36 PreInvPairs, 41 NumberOfFragments, 123 HoareAnnotationTreeSize, 36 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 12.2s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 92 ConstructedInterpolants, 19 QuantifiedInterpolants, 489 SizeOfPredicates, 27 NumberOfNonLiveVariables, 229 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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: 200]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 159]: Loop Invariant [2021-11-20 07:06:52,518 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 07:06:52,518 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] [2021-11-20 07:06:52,518 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] [2021-11-20 07:06:52,518 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] [2021-11-20 07:06:52,518 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] [2021-11-20 07:06:52,519 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 07:06:52,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] [2021-11-20 07:06:52,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] [2021-11-20 07:06:52,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] [2021-11-20 07:06:52,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_10,QUANTIFIED] [2021-11-20 07:06:52,520 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\exists v_skolemized_q#valueAsBitvector_10 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_10[63:63], v_skolemized_q#valueAsBitvector_10[62:52], v_skolemized_q#valueAsBitvector_10[51:0]) && ix == ~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_10[63:32])) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 148]: Loop Invariant [2021-11-20 07:06:52,521 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,521 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,521 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,521 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,521 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,521 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,522 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,522 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,522 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,522 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,523 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,523 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,523 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,523 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,523 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,523 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 19]: Loop Invariant [2021-11-20 07:06:52,524 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,524 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,524 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,525 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,525 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,525 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,525 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,525 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,526 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,526 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,526 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,526 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,526 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,527 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,527 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,527 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((1bv32 == \result && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 151]: Loop Invariant [2021-11-20 07:06:52,527 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 07:06:52,528 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:06:52,528 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 07:06:52,528 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-20 07:06:52,745 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-20 07:06:52,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb7d67-0df8-478c-93fc-0007ef777d1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE