./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:27:45,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:27:45,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:27:45,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:27:45,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:27:45,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:27:45,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:27:45,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:27:45,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:27:45,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:27:45,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:27:45,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:27:45,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:27:45,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:27:45,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:27:45,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:27:45,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:27:45,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:27:45,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:27:45,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:27:45,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:27:45,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:27:45,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:27:45,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:27:45,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:27:45,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:27:45,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:27:45,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:27:45,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:27:45,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:27:45,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:27:45,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:27:45,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:27:45,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:27:45,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:27:45,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:27:45,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:27:45,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:27:45,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:27:45,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:27:45,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:27:45,806 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 22:27:45,853 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:27:45,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:27:45,855 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:27:45,855 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:27:45,855 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:27:45,855 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:27:45,855 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:27:45,856 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:27:45,856 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:27:45,856 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:27:45,863 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:27:45,863 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:27:45,864 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:27:45,864 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:27:45,864 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:27:45,864 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:27:45,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:27:45,865 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:27:45,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:27:45,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:27:45,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:27:45,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:27:45,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:27:45,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:27:45,867 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:27:45,867 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:27:45,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:27:45,867 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:27:45,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:27:45,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:27:45,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:27:45,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:45,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:27:45,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:27:45,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:27:45,869 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:27:45,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:27:45,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:27:45,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:27:45,870 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:27:45,870 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 [2021-11-12 22:27:46,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:27:46,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:27:46,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:27:46,183 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:27:46,184 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:27:46,186 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2021-11-12 22:27:46,239 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/data/99f771e33/2ae049751b104e859aa0e516707348be/FLAG9f7785ea9 [2021-11-12 22:27:46,683 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:27:46,684 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2021-11-12 22:27:46,693 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/data/99f771e33/2ae049751b104e859aa0e516707348be/FLAG9f7785ea9 [2021-11-12 22:27:47,040 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/data/99f771e33/2ae049751b104e859aa0e516707348be [2021-11-12 22:27:47,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:27:47,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:27:47,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:47,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:27:47,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:27:47,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:47" (1/1) ... [2021-11-12 22:27:47,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@136b867f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:47, skipping insertion in model container [2021-11-12 22:27:47,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:47" (1/1) ... [2021-11-12 22:27:47,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:27:47,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:27:47,335 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c[5286,5299] [2021-11-12 22:27:47,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:47,352 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:27:47,417 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c[5286,5299] [2021-11-12 22:27:47,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:47,435 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:27:47,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:47 WrapperNode [2021-11-12 22:27:47,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:47,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:27:47,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:27:47,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:27:47,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:47" (1/1) ... [2021-11-12 22:27:47,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:47" (1/1) ... [2021-11-12 22:27:47,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:27:47,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:27:47,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:27:47,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:27:47,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:47" (1/1) ... [2021-11-12 22:27:47,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:47" (1/1) ... [2021-11-12 22:27:47,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:47" (1/1) ... [2021-11-12 22:27:47,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:47" (1/1) ... [2021-11-12 22:27:47,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:47" (1/1) ... [2021-11-12 22:27:47,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:47" (1/1) ... [2021-11-12 22:27:47,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:47" (1/1) ... [2021-11-12 22:27:47,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:27:47,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:27:47,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:27:47,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:27:47,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:47" (1/1) ... [2021-11-12 22:27:47,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:47,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:27:47,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:27:47,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:27:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 22:27:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:27:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-12 22:27:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 22:27:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-12 22:27:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-11-12 22:27:47,638 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-11-12 22:27:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:27:47,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:27:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 22:27:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-12 22:27:47,639 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2021-11-12 22:27:47,639 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2021-11-12 22:27:47,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:27:48,265 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:27:48,265 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-12 22:27:48,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:27:48 BoogieIcfgContainer [2021-11-12 22:27:48,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:27:48,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:27:48,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:27:48,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:27:48,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:27:47" (1/3) ... [2021-11-12 22:27:48,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f742fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:27:48, skipping insertion in model container [2021-11-12 22:27:48,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:47" (2/3) ... [2021-11-12 22:27:48,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f742fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:27:48, skipping insertion in model container [2021-11-12 22:27:48,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:27:48" (3/3) ... [2021-11-12 22:27:48,276 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0660a.c [2021-11-12 22:27:48,281 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:27:48,281 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:27:48,339 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:27:48,346 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:27:48,346 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:27:48,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 61 states have (on average 1.7049180327868851) internal successors, (104), 62 states have internal predecessors, (104), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-12 22:27:48,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-12 22:27:48,368 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:48,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:48,369 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:27:48,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:48,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1923224870, now seen corresponding path program 1 times [2021-11-12 22:27:48,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:27:48,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101691992] [2021-11-12 22:27:48,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:48,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:27:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:48,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:48,582 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:27:48,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101691992] [2021-11-12 22:27:48,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101691992] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:27:48,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:27:48,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 22:27:48,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625905335] [2021-11-12 22:27:48,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:48,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:27:48,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:27:48,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:27:48,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:27:48,615 INFO L87 Difference]: Start difference. First operand has 69 states, 61 states have (on average 1.7049180327868851) internal successors, (104), 62 states have internal predecessors, (104), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:27:48,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:27:48,678 INFO L93 Difference]: Finished difference Result 136 states and 225 transitions. [2021-11-12 22:27:48,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:27:48,680 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-12 22:27:48,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:27:48,691 INFO L225 Difference]: With dead ends: 136 [2021-11-12 22:27:48,691 INFO L226 Difference]: Without dead ends: 66 [2021-11-12 22:27:48,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:27:48,704 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.44ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.59ms IncrementalHoareTripleChecker+Time [2021-11-12 22:27:48,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 13 Unknown, 0 Unchecked, 1.44ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 31.59ms Time] [2021-11-12 22:27:48,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-12 22:27:48,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-11-12 22:27:48,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 59 states have (on average 1.4406779661016949) internal successors, (85), 59 states have internal predecessors, (85), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-12 22:27:48,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2021-11-12 22:27:48,773 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 10 [2021-11-12 22:27:48,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:27:48,774 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-11-12 22:27:48,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:27:48,774 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2021-11-12 22:27:48,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-12 22:27:48,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:48,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:48,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 22:27:48,776 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:27:48,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:48,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1412060079, now seen corresponding path program 1 times [2021-11-12 22:27:48,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:27:48,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815975059] [2021-11-12 22:27:48,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:48,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:27:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:27:48,909 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 22:27:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:27:49,035 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 22:27:49,036 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 22:27:49,038 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 22:27:49,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 22:27:49,046 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-12 22:27:49,048 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:27:49,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 10:27:49 BoogieIcfgContainer [2021-11-12 22:27:49,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 22:27:49,118 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 22:27:49,118 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 22:27:49,118 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 22:27:49,119 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:27:48" (3/4) ... [2021-11-12 22:27:49,122 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-12 22:27:49,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 22:27:49,123 INFO L158 Benchmark]: Toolchain (without parser) took 2078.43ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 48.0MB in the beginning and 65.7MB in the end (delta: -17.7MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2021-11-12 22:27:49,124 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 86.0MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:27:49,130 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.59ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.8MB in the beginning and 76.4MB in the end (delta: -28.6MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2021-11-12 22:27:49,131 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.72ms. Allocated memory is still 104.9MB. Free memory was 76.4MB in the beginning and 74.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:27:49,131 INFO L158 Benchmark]: Boogie Preprocessor took 50.00ms. Allocated memory is still 104.9MB. Free memory was 74.0MB in the beginning and 71.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:27:49,132 INFO L158 Benchmark]: RCFGBuilder took 727.68ms. Allocated memory is still 104.9MB. Free memory was 71.7MB in the beginning and 73.0MB in the end (delta: -1.2MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2021-11-12 22:27:49,133 INFO L158 Benchmark]: TraceAbstraction took 847.10ms. Allocated memory is still 104.9MB. Free memory was 72.1MB in the beginning and 66.3MB in the end (delta: 5.9MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-11-12 22:27:49,136 INFO L158 Benchmark]: Witness Printer took 4.31ms. Allocated memory is still 104.9MB. Free memory was 66.3MB in the beginning and 65.7MB in the end (delta: 538.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:27:49,144 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 86.0MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.59ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.8MB in the beginning and 76.4MB in the end (delta: -28.6MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.72ms. Allocated memory is still 104.9MB. Free memory was 76.4MB in the beginning and 74.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.00ms. Allocated memory is still 104.9MB. Free memory was 74.0MB in the beginning and 71.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 727.68ms. Allocated memory is still 104.9MB. Free memory was 71.7MB in the beginning and 73.0MB in the end (delta: -1.2MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * TraceAbstraction took 847.10ms. Allocated memory is still 104.9MB. Free memory was 72.1MB in the beginning and 66.3MB in the end (delta: 5.9MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Witness Printer took 4.31ms. Allocated memory is still 104.9MB. Free memory was 66.3MB in the beginning and 65.7MB in the end (delta: 538.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 232]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 231, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 135, overapproximation of someUnaryFLOAToperation at line 219, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L218] float x = __VERIFIER_nondet_float(); [L219] float y = -0.0f; VAL [aT_atan={6:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L226] COND TRUE x < 0.0f && y == -0.0f [L228] CALL, EXPR __ieee754_atan2f(y, x) [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=1000000000000000000000000000001, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000001, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000001, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=0, hy=-1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [\old(x)=1000000000000000000000000000001, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=0, hy=-1, ix=2139095041, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0] [L228] RET, EXPR __ieee754_atan2f(y, x) [L228] float res = __ieee754_atan2f(y, x); [L231] COND TRUE res != -pi VAL [aT_atan={6:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000003, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0] [L232] reach_error() VAL [aT_atan={6:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000003, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 31.59ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 84 SdHoareTripleChecker+Invalid, 24.29ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 84 mSDtfsCounter, 13 mSolverCounterSat, 1.44ms 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=69occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-12 22:27:49,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:27:51,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:27:51,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:27:51,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:27:51,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:27:51,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:27:51,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:27:51,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:27:51,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:27:51,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:27:51,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:27:51,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:27:51,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:27:51,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:27:51,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:27:51,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:27:51,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:27:51,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:27:51,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:27:51,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:27:51,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:27:51,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:27:51,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:27:51,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:27:51,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:27:51,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:27:51,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:27:51,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:27:51,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:27:51,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:27:51,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:27:51,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:27:51,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:27:51,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:27:51,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:27:51,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:27:51,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:27:51,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:27:51,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:27:51,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:27:51,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:27:51,695 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 22:27:51,741 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:27:51,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:27:51,743 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:27:51,743 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:27:51,743 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:27:51,743 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:27:51,743 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:27:51,744 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:27:51,744 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:27:51,744 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:27:51,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:27:51,747 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:27:51,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:27:51,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:27:51,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:27:51,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:27:51,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:27:51,748 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:27:51,748 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:27:51,748 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:27:51,748 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:27:51,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:27:51,749 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:27:51,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:27:51,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:27:51,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:27:51,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:27:51,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:51,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:27:51,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:27:51,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:27:51,750 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:27:51,751 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:27:51,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:27:51,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:27:51,751 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:27:51,751 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_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 [2021-11-12 22:27:52,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:27:52,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:27:52,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:27:52,146 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:27:52,148 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:27:52,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2021-11-12 22:27:52,222 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/data/7da9ac09d/f8ccc08ef2b146b4b3edb2e549655f3a/FLAG972acc39c [2021-11-12 22:27:52,774 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:27:52,775 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2021-11-12 22:27:52,785 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/data/7da9ac09d/f8ccc08ef2b146b4b3edb2e549655f3a/FLAG972acc39c [2021-11-12 22:27:53,096 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/data/7da9ac09d/f8ccc08ef2b146b4b3edb2e549655f3a [2021-11-12 22:27:53,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:27:53,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:27:53,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:53,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:27:53,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:27:53,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:53" (1/1) ... [2021-11-12 22:27:53,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@320579fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:53, skipping insertion in model container [2021-11-12 22:27:53,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:53" (1/1) ... [2021-11-12 22:27:53,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:27:53,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:27:53,396 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c[5286,5299] [2021-11-12 22:27:53,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:53,429 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:27:53,498 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c[5286,5299] [2021-11-12 22:27:53,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:53,518 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:27:53,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:53 WrapperNode [2021-11-12 22:27:53,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:53,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:27:53,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:27:53,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:27:53,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:53" (1/1) ... [2021-11-12 22:27:53,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:53" (1/1) ... [2021-11-12 22:27:53,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:27:53,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:27:53,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:27:53,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:27:53,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:53" (1/1) ... [2021-11-12 22:27:53,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:53" (1/1) ... [2021-11-12 22:27:53,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:53" (1/1) ... [2021-11-12 22:27:53,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:53" (1/1) ... [2021-11-12 22:27:53,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:53" (1/1) ... [2021-11-12 22:27:53,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:53" (1/1) ... [2021-11-12 22:27:53,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:53" (1/1) ... [2021-11-12 22:27:53,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:27:53,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:27:53,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:27:53,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:27:53,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:53" (1/1) ... [2021-11-12 22:27:53,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:53,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:27:53,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:27:53,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:27:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-12 22:27:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:27:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:27:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-12 22:27:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-11-12 22:27:53,703 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-11-12 22:27:53,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:27:53,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:27:53,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:27:53,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-12 22:27:53,704 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2021-11-12 22:27:53,704 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2021-11-12 22:27:53,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:27:53,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:28:06,639 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:28:06,639 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-12 22:28:06,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:28:06 BoogieIcfgContainer [2021-11-12 22:28:06,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:28:06,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:28:06,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:28:06,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:28:06,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:27:53" (1/3) ... [2021-11-12 22:28:06,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6c74cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:28:06, skipping insertion in model container [2021-11-12 22:28:06,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:53" (2/3) ... [2021-11-12 22:28:06,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6c74cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:28:06, skipping insertion in model container [2021-11-12 22:28:06,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:28:06" (3/3) ... [2021-11-12 22:28:06,649 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0660a.c [2021-11-12 22:28:06,654 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:28:06,655 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:28:06,697 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:28:06,704 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:28:06,705 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:28:06,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 84 states have (on average 1.6547619047619047) internal successors, (139), 85 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-12 22:28:06,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 22:28:06,738 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:06,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:06,739 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:06,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:06,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1457381495, now seen corresponding path program 1 times [2021-11-12 22:28:06,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:06,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822276725] [2021-11-12 22:28:06,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:06,759 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:06,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:06,762 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:06,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:28:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:07,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:28:07,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:07,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:07,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:07,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:07,895 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:07,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822276725] [2021-11-12 22:28:07,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822276725] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:07,896 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:28:07,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:28:07,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813051146] [2021-11-12 22:28:07,899 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:07,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:28:07,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:07,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:28:07,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:28:07,931 INFO L87 Difference]: Start difference. First operand has 92 states, 84 states have (on average 1.6547619047619047) internal successors, (139), 85 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:28:07,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:07,961 INFO L93 Difference]: Finished difference Result 181 states and 294 transitions. [2021-11-12 22:28:07,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:28:07,963 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 [2021-11-12 22:28:07,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:07,972 INFO L225 Difference]: With dead ends: 181 [2021-11-12 22:28:07,972 INFO L226 Difference]: Without dead ends: 88 [2021-11-12 22:28:07,976 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 [2021-11-12 22:28:07,980 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.01ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:07,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 2.01ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:28:07,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-12 22:28:08,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-11-12 22:28:08,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4691358024691359) internal successors, (119), 81 states have internal predecessors, (119), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-12 22:28:08,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 127 transitions. [2021-11-12 22:28:08,027 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 127 transitions. Word has length 11 [2021-11-12 22:28:08,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:08,028 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 127 transitions. [2021-11-12 22:28:08,028 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) [2021-11-12 22:28:08,029 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 127 transitions. [2021-11-12 22:28:08,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-12 22:28:08,029 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:08,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:08,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:08,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:08,241 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:08,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:08,243 INFO L85 PathProgramCache]: Analyzing trace with hash 413175488, now seen corresponding path program 1 times [2021-11-12 22:28:08,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:08,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022680695] [2021-11-12 22:28:08,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:08,244 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:08,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:08,245 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:08,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:28:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:09,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-12 22:28:09,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:09,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-11-12 22:28:09,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2021-11-12 22:28:10,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:10,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:12,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:12,031 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:12,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022680695] [2021-11-12 22:28:12,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2022680695] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:12,032 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:28:12,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-12 22:28:12,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764551136] [2021-11-12 22:28:12,032 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:12,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 22:28:12,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:12,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 22:28:12,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:28:12,035 INFO L87 Difference]: Start difference. First operand 88 states and 127 transitions. Second operand has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:28:12,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:12,622 INFO L93 Difference]: Finished difference Result 92 states and 130 transitions. [2021-11-12 22:28:12,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:28:12,627 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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 13 [2021-11-12 22:28:12,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:12,629 INFO L225 Difference]: With dead ends: 92 [2021-11-12 22:28:12,630 INFO L226 Difference]: Without dead ends: 88 [2021-11-12 22:28:12,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-11-12 22:28:12,632 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 7 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 329.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.25ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 349.48ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:12,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 1244 Invalid, 75 Unknown, 0 Unchecked, 7.25ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 61 Unchecked, 349.48ms Time] [2021-11-12 22:28:12,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-12 22:28:12,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-11-12 22:28:12,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4567901234567902) internal successors, (118), 81 states have internal predecessors, (118), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-12 22:28:12,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 126 transitions. [2021-11-12 22:28:12,650 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 126 transitions. Word has length 13 [2021-11-12 22:28:12,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:12,651 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 126 transitions. [2021-11-12 22:28:12,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:28:12,651 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 126 transitions. [2021-11-12 22:28:12,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-12 22:28:12,652 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:12,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:12,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:12,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:12,853 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:12,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:12,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2003357637, now seen corresponding path program 1 times [2021-11-12 22:28:12,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:12,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106451171] [2021-11-12 22:28:12,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:12,855 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:12,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:12,855 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:12,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:28:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:13,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 22:28:13,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:14,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:14,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:14,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:14,691 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:14,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106451171] [2021-11-12 22:28:14,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106451171] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:14,692 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:28:14,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-12 22:28:14,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588189414] [2021-11-12 22:28:14,693 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:14,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 22:28:14,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:14,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 22:28:14,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:28:14,694 INFO L87 Difference]: Start difference. First operand 88 states and 126 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:28:15,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:15,368 INFO L93 Difference]: Finished difference Result 164 states and 231 transitions. [2021-11-12 22:28:15,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:28:15,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-12 22:28:15,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:15,373 INFO L225 Difference]: With dead ends: 164 [2021-11-12 22:28:15,373 INFO L226 Difference]: Without dead ends: 96 [2021-11-12 22:28:15,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:28:15,376 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 341 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 255.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.37ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 304.37ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:15,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 400 Invalid, 28 Unknown, 0 Unchecked, 3.37ms Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 2 Unchecked, 304.37ms Time] [2021-11-12 22:28:15,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-12 22:28:15,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 81. [2021-11-12 22:28:15,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 74 states have internal predecessors, (102), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-12 22:28:15,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 110 transitions. [2021-11-12 22:28:15,387 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 110 transitions. Word has length 18 [2021-11-12 22:28:15,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:15,388 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 110 transitions. [2021-11-12 22:28:15,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:28:15,388 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 110 transitions. [2021-11-12 22:28:15,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-12 22:28:15,389 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:15,390 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:15,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:15,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:15,605 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:15,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:15,606 INFO L85 PathProgramCache]: Analyzing trace with hash -106452547, now seen corresponding path program 1 times [2021-11-12 22:28:15,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:15,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [908598570] [2021-11-12 22:28:15,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:15,607 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:15,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:15,608 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:15,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:28:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:16,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:28:16,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:16,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:16,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:18,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:18,041 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:18,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [908598570] [2021-11-12 22:28:18,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [908598570] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:18,042 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:28:18,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-12 22:28:18,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383785173] [2021-11-12 22:28:18,042 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:18,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 22:28:18,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:18,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 22:28:18,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:28:18,044 INFO L87 Difference]: Start difference. First operand 81 states and 110 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:28:18,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:18,608 INFO L93 Difference]: Finished difference Result 151 states and 205 transitions. [2021-11-12 22:28:18,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:28:18,609 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-12 22:28:18,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:18,610 INFO L225 Difference]: With dead ends: 151 [2021-11-12 22:28:18,610 INFO L226 Difference]: Without dead ends: 85 [2021-11-12 22:28:18,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:28:18,613 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 35 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 333.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.58ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 347.91ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:18,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 778 Invalid, 62 Unknown, 0 Unchecked, 2.58ms Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 26 Unchecked, 347.91ms Time] [2021-11-12 22:28:18,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-12 22:28:18,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 81. [2021-11-12 22:28:18,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 74 states have (on average 1.364864864864865) internal successors, (101), 74 states have internal predecessors, (101), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-12 22:28:18,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 109 transitions. [2021-11-12 22:28:18,639 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 109 transitions. Word has length 18 [2021-11-12 22:28:18,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:18,640 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 109 transitions. [2021-11-12 22:28:18,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:28:18,640 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 109 transitions. [2021-11-12 22:28:18,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-12 22:28:18,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:18,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:18,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:18,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:18,850 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:18,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:18,851 INFO L85 PathProgramCache]: Analyzing trace with hash -49194245, now seen corresponding path program 1 times [2021-11-12 22:28:18,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:18,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040890427] [2021-11-12 22:28:18,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:18,852 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:18,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:18,853 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:18,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:28:19,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:19,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 22:28:19,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:20,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:20,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:21,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:21,196 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:21,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040890427] [2021-11-12 22:28:21,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040890427] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:21,196 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:28:21,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-12 22:28:21,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476060105] [2021-11-12 22:28:21,197 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:21,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 22:28:21,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:21,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 22:28:21,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:28:21,199 INFO L87 Difference]: Start difference. First operand 81 states and 109 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:28:21,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:21,663 INFO L93 Difference]: Finished difference Result 115 states and 152 transitions. [2021-11-12 22:28:21,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:28:21,664 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-12 22:28:21,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:21,665 INFO L225 Difference]: With dead ends: 115 [2021-11-12 22:28:21,665 INFO L226 Difference]: Without dead ends: 79 [2021-11-12 22:28:21,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-11-12 22:28:21,666 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 18 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 322.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.79ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 334.97ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:21,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 628 Invalid, 65 Unknown, 0 Unchecked, 1.79ms Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 37 Unchecked, 334.97ms Time] [2021-11-12 22:28:21,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-12 22:28:21,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-11-12 22:28:21,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 73 states have (on average 1.3424657534246576) internal successors, (98), 73 states have internal predecessors, (98), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-12 22:28:21,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 104 transitions. [2021-11-12 22:28:21,681 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 104 transitions. Word has length 18 [2021-11-12 22:28:21,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:21,681 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 104 transitions. [2021-11-12 22:28:21,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:28:21,682 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 104 transitions. [2021-11-12 22:28:21,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-12 22:28:21,683 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:21,683 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:21,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-12 22:28:21,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:21,897 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:21,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:21,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1527794826, now seen corresponding path program 1 times [2021-11-12 22:28:21,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:21,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10922456] [2021-11-12 22:28:21,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:21,899 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:21,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:21,900 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:21,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:28:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:22,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 22:28:22,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:23,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:23,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:24,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:24,276 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:24,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [10922456] [2021-11-12 22:28:24,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [10922456] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:24,277 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:28:24,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-12 22:28:24,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120661196] [2021-11-12 22:28:24,278 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:24,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 22:28:24,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:24,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 22:28:24,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:28:24,279 INFO L87 Difference]: Start difference. First operand 79 states and 104 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:28:24,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:24,637 INFO L93 Difference]: Finished difference Result 83 states and 107 transitions. [2021-11-12 22:28:24,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:28:24,638 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-12 22:28:24,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:24,640 INFO L225 Difference]: With dead ends: 83 [2021-11-12 22:28:24,640 INFO L226 Difference]: Without dead ends: 79 [2021-11-12 22:28:24,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:28:24,641 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 21 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 154.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.23ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 162.44ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:24,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 720 Invalid, 45 Unknown, 0 Unchecked, 2.23ms Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 20 Unchecked, 162.44ms Time] [2021-11-12 22:28:24,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-12 22:28:24,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-11-12 22:28:24,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 73 states have (on average 1.3287671232876712) internal successors, (97), 73 states have internal predecessors, (97), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-12 22:28:24,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2021-11-12 22:28:24,650 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 19 [2021-11-12 22:28:24,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:24,650 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2021-11-12 22:28:24,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:28:24,650 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2021-11-12 22:28:24,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-12 22:28:24,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:24,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:24,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-12 22:28:24,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:24,873 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:24,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:24,874 INFO L85 PathProgramCache]: Analyzing trace with hash -119623626, now seen corresponding path program 1 times [2021-11-12 22:28:24,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:24,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51373668] [2021-11-12 22:28:24,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:24,874 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:24,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:24,875 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:24,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:28:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:25,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:28:25,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:27,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:27,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:28,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:28,677 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:28,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51373668] [2021-11-12 22:28:28,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51373668] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:28,678 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:28:28,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-12 22:28:28,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301536591] [2021-11-12 22:28:28,678 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:28,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:28:28,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:28,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:28:28,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:28:28,679 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:28:32,560 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 22:28:35,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:28:37,711 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 22:28:41,515 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:28:43,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 22:28:46,496 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 22:28:48,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 22:28:48,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:48,311 INFO L93 Difference]: Finished difference Result 86 states and 109 transitions. [2021-11-12 22:28:48,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:28:48,347 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-12 22:28:48,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:48,348 INFO L225 Difference]: With dead ends: 86 [2021-11-12 22:28:48,348 INFO L226 Difference]: Without dead ends: 82 [2021-11-12 22:28:48,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:28:48,350 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 82 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18428.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.49ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18898.72ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:48,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 306 Invalid, 109 Unknown, 0 Unchecked, 2.49ms Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 4 Unknown, 0 Unchecked, 18898.72ms Time] [2021-11-12 22:28:48,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-12 22:28:48,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2021-11-12 22:28:48,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 73 states have (on average 1.3013698630136987) internal successors, (95), 73 states have internal predecessors, (95), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-12 22:28:48,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 101 transitions. [2021-11-12 22:28:48,365 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 101 transitions. Word has length 20 [2021-11-12 22:28:48,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:48,365 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 101 transitions. [2021-11-12 22:28:48,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:28:48,371 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 101 transitions. [2021-11-12 22:28:48,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-12 22:28:48,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:48,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:48,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:48,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:48,581 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:48,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:48,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1243514742, now seen corresponding path program 1 times [2021-11-12 22:28:48,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:48,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523331255] [2021-11-12 22:28:48,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:48,582 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:48,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:48,583 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:48,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:28:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:49,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 22:28:49,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:50,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:50,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:52,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:52,017 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:52,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523331255] [2021-11-12 22:28:52,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523331255] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:52,018 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:28:52,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2021-11-12 22:28:52,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613012149] [2021-11-12 22:28:52,019 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:52,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-12 22:28:52,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:52,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-12 22:28:52,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:28:52,020 INFO L87 Difference]: Start difference. First operand 79 states and 101 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:28:52,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:52,629 INFO L93 Difference]: Finished difference Result 79 states and 101 transitions. [2021-11-12 22:28:52,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 22:28:52,629 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-12 22:28:52,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:52,630 INFO L225 Difference]: With dead ends: 79 [2021-11-12 22:28:52,630 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 22:28:52,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2021-11-12 22:28:52,632 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 32 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.46ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 85.93ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:52,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 40 Invalid, 28 Unknown, 0 Unchecked, 0.46ms Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 12 Unchecked, 85.93ms Time] [2021-11-12 22:28:52,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 22:28:52,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 22:28:52,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:28:52,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 22:28:52,635 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2021-11-12 22:28:52,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:52,635 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 22:28:52,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:28:52,636 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 22:28:52,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 22:28:52,639 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 22:28:52,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-12 22:28:52,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:52,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-12 22:28:53,605 INFO L858 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 14 27) no Hoare annotation was computed. [2021-11-12 22:28:53,605 INFO L858 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 14 27) no Hoare annotation was computed. [2021-11-12 22:28:53,605 INFO L861 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 14 27) the Hoare annotation is: true [2021-11-12 22:28:53,606 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2021-11-12 22:28:53,606 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2021-11-12 22:28:53,606 INFO L858 garLoopResultBuilder]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2021-11-12 22:28:53,606 INFO L858 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2021-11-12 22:28:53,606 INFO L861 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: true [2021-11-12 22:28:53,606 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-11-12 22:28:53,607 INFO L858 garLoopResultBuilder]: For program point L184-2(line 184) no Hoare annotation was computed. [2021-11-12 22:28:53,607 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-12 22:28:53,607 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 137) no Hoare annotation was computed. [2021-11-12 22:28:53,607 INFO L854 garLoopResultBuilder]: At program point L120(lines 120 215) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|))) (= |ULTIMATE.start___ieee754_atan2f_#res#1| (fp.sub roundNearestTiesToEven (fp.neg ~pi~0) ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000000000000000000000000000.0))))) (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 1000000000.0))) ~pi~0) (= |ULTIMATE.start___ieee754_atan2f_~iy~0#1| (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven) (= .cse0 |ULTIMATE.start___ieee754_atan2f_~y#1|))) [2021-11-12 22:28:53,607 INFO L858 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2021-11-12 22:28:53,608 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 179) no Hoare annotation was computed. [2021-11-12 22:28:53,608 INFO L858 garLoopResultBuilder]: For program point L203-1(lines 196 208) no Hoare annotation was computed. [2021-11-12 22:28:53,608 INFO L858 garLoopResultBuilder]: For program point L203-2(lines 203 207) no Hoare annotation was computed. [2021-11-12 22:28:53,608 INFO L858 garLoopResultBuilder]: For program point L187(lines 187 192) no Hoare annotation was computed. [2021-11-12 22:28:53,608 INFO L861 garLoopResultBuilder]: At program point L237(lines 217 238) the Hoare annotation is: true [2021-11-12 22:28:53,608 INFO L858 garLoopResultBuilder]: For program point L171(line 171) no Hoare annotation was computed. [2021-11-12 22:28:53,609 INFO L858 garLoopResultBuilder]: For program point L138(lines 138 139) no Hoare annotation was computed. [2021-11-12 22:28:53,609 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-11-12 22:28:53,609 INFO L858 garLoopResultBuilder]: For program point L155-2(line 155) no Hoare annotation was computed. [2021-11-12 22:28:53,609 INFO L854 garLoopResultBuilder]: At program point L139(line 139) the Hoare annotation is: false [2021-11-12 22:28:53,609 INFO L858 garLoopResultBuilder]: For program point L139-1(line 139) no Hoare annotation was computed. [2021-11-12 22:28:53,609 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 192) no Hoare annotation was computed. [2021-11-12 22:28:53,610 INFO L858 garLoopResultBuilder]: For program point L189-2(lines 187 192) no Hoare annotation was computed. [2021-11-12 22:28:53,610 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-12 22:28:53,610 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-12 22:28:53,610 INFO L858 garLoopResultBuilder]: For program point L157(lines 157 181) no Hoare annotation was computed. [2021-11-12 22:28:53,610 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 120 215) no Hoare annotation was computed. [2021-11-12 22:28:53,610 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 124 128) no Hoare annotation was computed. [2021-11-12 22:28:53,611 INFO L854 garLoopResultBuilder]: At program point L124-2(lines 124 128) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (fp.lt |ULTIMATE.start___ieee754_atan2f_~x#1| (_ +zero 8 24)) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 1000000000.0))) ~pi~0) (= .cse0 |ULTIMATE.start_main_~y~0#1|) (= currentRoundingMode roundNearestTiesToEven) (= .cse0 |ULTIMATE.start___ieee754_atan2f_~y#1|))) [2021-11-12 22:28:53,611 INFO L858 garLoopResultBuilder]: For program point L124-3(lines 124 128) no Hoare annotation was computed. [2021-11-12 22:28:53,611 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 180) no Hoare annotation was computed. [2021-11-12 22:28:53,611 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-11-12 22:28:53,611 INFO L858 garLoopResultBuilder]: For program point L142(lines 142 152) no Hoare annotation was computed. [2021-11-12 22:28:53,611 INFO L858 garLoopResultBuilder]: For program point L142-2(lines 120 215) no Hoare annotation was computed. [2021-11-12 22:28:53,612 INFO L854 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: false [2021-11-12 22:28:53,612 INFO L858 garLoopResultBuilder]: For program point L159(lines 159 168) no Hoare annotation was computed. [2021-11-12 22:28:53,612 INFO L854 garLoopResultBuilder]: At program point L192-1(line 192) the Hoare annotation is: false [2021-11-12 22:28:53,612 INFO L858 garLoopResultBuilder]: For program point L192-2(line 192) no Hoare annotation was computed. [2021-11-12 22:28:53,612 INFO L858 garLoopResultBuilder]: For program point L143(lines 143 151) no Hoare annotation was computed. [2021-11-12 22:28:53,612 INFO L858 garLoopResultBuilder]: For program point L226(lines 226 235) no Hoare annotation was computed. [2021-11-12 22:28:53,613 INFO L858 garLoopResultBuilder]: For program point L193(lines 193 214) no Hoare annotation was computed. [2021-11-12 22:28:53,613 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-11-12 22:28:53,613 INFO L858 garLoopResultBuilder]: For program point L226-2(lines 226 235) no Hoare annotation was computed. [2021-11-12 22:28:53,613 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-12 22:28:53,613 INFO L858 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2021-11-12 22:28:53,613 INFO L858 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-11-12 22:28:53,614 INFO L858 garLoopResultBuilder]: For program point L144(line 144) no Hoare annotation was computed. [2021-11-12 22:28:53,614 INFO L858 garLoopResultBuilder]: For program point L144-2(line 144) no Hoare annotation was computed. [2021-11-12 22:28:53,614 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-12 22:28:53,614 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-11-12 22:28:53,614 INFO L858 garLoopResultBuilder]: For program point L162(line 162) no Hoare annotation was computed. [2021-11-12 22:28:53,614 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-12 22:28:53,614 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-11-12 22:28:53,615 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2021-11-12 22:28:53,615 INFO L854 garLoopResultBuilder]: At program point L130-2(lines 130 134) the Hoare annotation is: (let ((.cse1 (fp.neg (_ +zero 8 24)))) (and (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (fp.lt |ULTIMATE.start___ieee754_atan2f_~x#1| (_ +zero 8 24)) (exists ((|v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5|) (_ bv0 32)))) (and (= (bvand (_ bv2147483647 32) .cse0) |ULTIMATE.start___ieee754_atan2f_~ix~2#1|) (fp.lt (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (_ +zero 8 24))))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 1000000000.0))) ~pi~0) (= .cse1 |ULTIMATE.start_main_~y~0#1|) (fp.lt (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|)) (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (= .cse1 |ULTIMATE.start___ieee754_atan2f_~y#1|))) [2021-11-12 22:28:53,615 INFO L858 garLoopResultBuilder]: For program point L130-3(lines 130 134) no Hoare annotation was computed. [2021-11-12 22:28:53,615 INFO L858 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2021-11-12 22:28:53,615 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-11-12 22:28:53,616 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-12 22:28:53,616 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 232) no Hoare annotation was computed. [2021-11-12 22:28:53,616 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 234) no Hoare annotation was computed. [2021-11-12 22:28:53,616 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 198 202) no Hoare annotation was computed. [2021-11-12 22:28:53,616 INFO L854 garLoopResultBuilder]: At program point L198-2(lines 198 202) the Hoare annotation is: false [2021-11-12 22:28:53,616 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-11-12 22:28:53,617 INFO L858 garLoopResultBuilder]: For program point L232(line 232) no Hoare annotation was computed. [2021-11-12 22:28:53,617 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-11-12 22:28:53,617 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 65) no Hoare annotation was computed. [2021-11-12 22:28:53,617 INFO L861 garLoopResultBuilder]: At program point atan_floatENTRY(lines 53 115) the Hoare annotation is: true [2021-11-12 22:28:53,617 INFO L858 garLoopResultBuilder]: For program point atan_floatFINAL(lines 53 115) no Hoare annotation was computed. [2021-11-12 22:28:53,617 INFO L858 garLoopResultBuilder]: For program point L73(lines 73 74) no Hoare annotation was computed. [2021-11-12 22:28:53,618 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2021-11-12 22:28:53,618 INFO L861 garLoopResultBuilder]: At program point L57-2(lines 57 61) the Hoare annotation is: true [2021-11-12 22:28:53,618 INFO L858 garLoopResultBuilder]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2021-11-12 22:28:53,618 INFO L861 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: true [2021-11-12 22:28:53,618 INFO L858 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2021-11-12 22:28:53,618 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 69) no Hoare annotation was computed. [2021-11-12 22:28:53,619 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 95) no Hoare annotation was computed. [2021-11-12 22:28:53,619 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 96) no Hoare annotation was computed. [2021-11-12 22:28:53,619 INFO L858 garLoopResultBuilder]: For program point atan_floatEXIT(lines 53 115) no Hoare annotation was computed. [2021-11-12 22:28:53,619 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 70) no Hoare annotation was computed. [2021-11-12 22:28:53,619 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 94) no Hoare annotation was computed. [2021-11-12 22:28:53,619 INFO L858 garLoopResultBuilder]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2021-11-12 22:28:53,620 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-11-12 22:28:53,620 INFO L858 garLoopResultBuilder]: For program point L80(lines 80 86) no Hoare annotation was computed. [2021-11-12 22:28:53,620 INFO L858 garLoopResultBuilder]: For program point L113-2(line 113) no Hoare annotation was computed. [2021-11-12 22:28:53,620 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2021-11-12 22:28:53,620 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 75) no Hoare annotation was computed. [2021-11-12 22:28:53,620 INFO L858 garLoopResultBuilder]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2021-11-12 22:28:53,624 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:53,625 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:28:53,635 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,639 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,640 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,640 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,641 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,641 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,642 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,642 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,642 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,642 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,644 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-12 22:28:53,644 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-12 22:28:53,645 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-12 22:28:53,645 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-12 22:28:53,645 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,646 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-12 22:28:53,646 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-12 22:28:53,647 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-12 22:28:53,647 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-12 22:28:53,647 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 10:28:53 BoogieIcfgContainer [2021-11-12 22:28:53,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 22:28:53,649 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 22:28:53,649 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 22:28:53,649 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 22:28:53,650 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:28:06" (3/4) ... [2021-11-12 22:28:53,653 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 22:28:53,658 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2021-11-12 22:28:53,659 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2021-11-12 22:28:53,668 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-11-12 22:28:53,669 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-12 22:28:53,670 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-12 22:28:53,670 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 22:28:53,694 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp.lt~FLOAT(x, ~Pluszero~LONGDOUBLE())) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5 : bv32 :: ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32]) == ix && ~fp.lt~FLOAT(~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][22:0]), ~Pluszero~LONGDOUBLE()))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y) && ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y [2021-11-12 22:28:53,695 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hy[31:31], hy[30:23], hy[22:0]) && \result == ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(pi), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000)))) && tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && iy == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y [2021-11-12 22:28:53,732 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 22:28:53,733 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 22:28:53,733 INFO L158 Benchmark]: Toolchain (without parser) took 60630.73ms. Allocated memory is still 71.3MB. Free memory was 49.0MB in the beginning and 25.2MB in the end (delta: 23.8MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2021-11-12 22:28:53,733 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 52.4MB. Free memory was 32.8MB in the beginning and 32.7MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:28:53,734 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.57ms. Allocated memory is still 71.3MB. Free memory was 48.7MB in the beginning and 48.1MB in the end (delta: 605.2kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:28:53,734 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.36ms. Allocated memory is still 71.3MB. Free memory was 47.9MB in the beginning and 45.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:28:53,735 INFO L158 Benchmark]: Boogie Preprocessor took 57.67ms. Allocated memory is still 71.3MB. Free memory was 45.8MB in the beginning and 43.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-12 22:28:53,735 INFO L158 Benchmark]: RCFGBuilder took 13008.01ms. Allocated memory is still 71.3MB. Free memory was 43.0MB in the beginning and 35.0MB in the end (delta: 8.0MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2021-11-12 22:28:53,735 INFO L158 Benchmark]: TraceAbstraction took 47005.58ms. Allocated memory is still 71.3MB. Free memory was 34.4MB in the beginning and 32.4MB in the end (delta: 1.9MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2021-11-12 22:28:53,736 INFO L158 Benchmark]: Witness Printer took 83.79ms. Allocated memory is still 71.3MB. Free memory was 32.4MB in the beginning and 25.2MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:28:53,738 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 52.4MB. Free memory was 32.8MB in the beginning and 32.7MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 414.57ms. Allocated memory is still 71.3MB. Free memory was 48.7MB in the beginning and 48.1MB in the end (delta: 605.2kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.36ms. Allocated memory is still 71.3MB. Free memory was 47.9MB in the beginning and 45.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.67ms. Allocated memory is still 71.3MB. Free memory was 45.8MB in the beginning and 43.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 13008.01ms. Allocated memory is still 71.3MB. Free memory was 43.0MB in the beginning and 35.0MB in the end (delta: 8.0MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * TraceAbstraction took 47005.58ms. Allocated memory is still 71.3MB. Free memory was 34.4MB in the beginning and 32.4MB in the end (delta: 1.9MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. * Witness Printer took 83.79ms. Allocated memory is still 71.3MB. Free memory was 32.4MB in the beginning and 25.2MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,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: 232]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 46.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 23.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 537 SdHoareTripleChecker+Valid, 20483.80ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 536 mSDsluCounter, 4248 SdHoareTripleChecker+Invalid, 19905.00ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 158 IncrementalHoareTripleChecker+Unchecked, 3508 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 232 IncrementalHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 740 mSDtfsCounter, 232 mSolverCounterSat, 22.17ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 288 GetRequests, 200 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 9.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 22 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 44 PreInvPairs, 48 NumberOfFragments, 155 HoareAnnotationTreeSize, 44 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 70 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 6.3s SatisfiabilityAnalysisTime, 14.4s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 266 ConstructedInterpolants, 67 QuantifiedInterpolants, 2596 SizeOfPredicates, 59 NumberOfNonLiveVariables, 941 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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: 217]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 124]: Loop Invariant [2021-11-12 22:28:53,748 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,749 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp.lt~FLOAT(x, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y - InvariantResult [Line: 120]: Loop Invariant [2021-11-12 22:28:53,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,751 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,751 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,751 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,752 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hy[31:31], hy[30:23], hy[22:0]) && \result == ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(pi), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000)))) && tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && iy == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant [2021-11-12 22:28:53,753 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-12 22:28:53,753 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-12 22:28:53,753 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-12 22:28:53,753 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-12 22:28:53,754 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:28:53,754 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-12 22:28:53,755 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-12 22:28:53,755 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-12 22:28:53,755 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-12 22:28:53,755 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp.lt~FLOAT(x, ~Pluszero~LONGDOUBLE())) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5 : bv32 :: ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32]) == ix && ~fp.lt~FLOAT(~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][22:0]), ~Pluszero~LONGDOUBLE()))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y) && ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y RESULT: Ultimate proved your program to be correct! [2021-11-12 22:28:53,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2241c5dc-7a35-4abf-9dfa-97b177d120cf/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE