./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.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_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/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_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/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_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/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 e0ade1ef6f39670f85f34fd118229c96ac1c225bb515b821a13b4050f3a28ad6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:34:09,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:34:09,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:34:09,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:34:09,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:34:09,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:34:09,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:34:09,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:34:09,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:34:09,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:34:09,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:34:09,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:34:09,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:34:09,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:34:09,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:34:09,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:34:09,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:34:09,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:34:09,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:34:09,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:34:09,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:34:09,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:34:09,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:34:09,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:34:09,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:34:09,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:34:09,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:34:09,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:34:09,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:34:09,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:34:09,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:34:09,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:34:09,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:34:09,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:34:09,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:34:09,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:34:09,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:34:09,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:34:09,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:34:09,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:34:09,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:34:09,624 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:34:09,648 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:34:09,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:34:09,650 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:34:09,650 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:34:09,650 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:34:09,650 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:34:09,650 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:34:09,650 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:34:09,651 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:34:09,651 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:34:09,651 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:34:09,651 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:34:09,651 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:34:09,652 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:34:09,652 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:34:09,652 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:34:09,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:34:09,653 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:34:09,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:34:09,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:34:09,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:34:09,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:34:09,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:34:09,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:34:09,654 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:34:09,654 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:34:09,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:34:09,655 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:34:09,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:34:09,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:34:09,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:34:09,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:34:09,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:34:09,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:34:09,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:34:09,656 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:34:09,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:34:09,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:34:09,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:34:09,657 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:34:09,657 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_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0ade1ef6f39670f85f34fd118229c96ac1c225bb515b821a13b4050f3a28ad6 [2021-11-12 23:34:09,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:34:10,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:34:10,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:34:10,014 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:34:10,015 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:34:10,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2021-11-12 23:34:10,099 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/data/10039a29c/169b71991b6b47b6bee9247d6123288b/FLAG01e51a9f7 [2021-11-12 23:34:10,560 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:34:10,560 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2021-11-12 23:34:10,569 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/data/10039a29c/169b71991b6b47b6bee9247d6123288b/FLAG01e51a9f7 [2021-11-12 23:34:10,918 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/data/10039a29c/169b71991b6b47b6bee9247d6123288b [2021-11-12 23:34:10,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:34:10,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:34:10,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:34:10,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:34:10,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:34:10,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:34:10" (1/1) ... [2021-11-12 23:34:10,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36ef2941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:10, skipping insertion in model container [2021-11-12 23:34:10,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:34:10" (1/1) ... [2021-11-12 23:34:10,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:34:10,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:34:11,203 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_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c[6389,6402] [2021-11-12 23:34:11,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:34:11,216 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:34:11,273 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_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c[6389,6402] [2021-11-12 23:34:11,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:34:11,294 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:34:11,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:11 WrapperNode [2021-11-12 23:34:11,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:34:11,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:34:11,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:34:11,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:34:11,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:11" (1/1) ... [2021-11-12 23:34:11,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:11" (1/1) ... [2021-11-12 23:34:11,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:34:11,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:34:11,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:34:11,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:34:11,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:11" (1/1) ... [2021-11-12 23:34:11,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:11" (1/1) ... [2021-11-12 23:34:11,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:11" (1/1) ... [2021-11-12 23:34:11,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:11" (1/1) ... [2021-11-12 23:34:11,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:11" (1/1) ... [2021-11-12 23:34:11,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:11" (1/1) ... [2021-11-12 23:34:11,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:11" (1/1) ... [2021-11-12 23:34:11,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:34:11,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:34:11,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:34:11,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:34:11,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:11" (1/1) ... [2021-11-12 23:34:11,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:34:11,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:34:11,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:34:11,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:34:11,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:34:11,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:34:11,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-12 23:34:11,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 23:34:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-11-12 23:34:11,522 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-11-12 23:34:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-12 23:34:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-11-12 23:34:11,522 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-11-12 23:34:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:34:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:34:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 23:34:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-12 23:34:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:34:12,220 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:34:12,221 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-12 23:34:12,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:34:12 BoogieIcfgContainer [2021-11-12 23:34:12,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:34:12,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:34:12,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:34:12,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:34:12,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:34:10" (1/3) ... [2021-11-12 23:34:12,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523ce4a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:34:12, skipping insertion in model container [2021-11-12 23:34:12,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:11" (2/3) ... [2021-11-12 23:34:12,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523ce4a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:34:12, skipping insertion in model container [2021-11-12 23:34:12,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:34:12" (3/3) ... [2021-11-12 23:34:12,240 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681a.c [2021-11-12 23:34:12,244 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:34:12,244 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:34:12,294 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:34:12,301 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:34:12,301 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:34:12,320 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 66 states have (on average 1.7121212121212122) internal successors, (113), 67 states have internal predecessors, (113), 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 23:34:12,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-12 23:34:12,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:34:12,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:34:12,326 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:34:12,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:34:12,332 INFO L85 PathProgramCache]: Analyzing trace with hash 475707120, now seen corresponding path program 1 times [2021-11-12 23:34:12,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:34:12,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853929945] [2021-11-12 23:34:12,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:34:12,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:34:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:34:12,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:34:12,511 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:34:12,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853929945] [2021-11-12 23:34:12,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853929945] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:34:12,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:34:12,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 23:34:12,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074804326] [2021-11-12 23:34:12,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:34:12,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:34:12,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:34:12,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:34:12,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:34:12,548 INFO L87 Difference]: Start difference. First operand has 74 states, 66 states have (on average 1.7121212121212122) internal successors, (113), 67 states have internal predecessors, (113), 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 23:34:12,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:34:12,606 INFO L93 Difference]: Finished difference Result 147 states and 245 transitions. [2021-11-12 23:34:12,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:34:12,608 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 23:34:12,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:34:12,616 INFO L225 Difference]: With dead ends: 147 [2021-11-12 23:34:12,617 INFO L226 Difference]: Without dead ends: 72 [2021-11-12 23:34:12,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:34:12,662 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.52ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.88ms IncrementalHoareTripleChecker+Time [2021-11-12 23:34:12,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 14 Unknown, 0 Unchecked, 1.52ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 25.88ms Time] [2021-11-12 23:34:12,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-11-12 23:34:12,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-11-12 23:34:12,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 65 states have (on average 1.4153846153846155) internal successors, (92), 65 states have internal predecessors, (92), 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 23:34:12,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 100 transitions. [2021-11-12 23:34:12,755 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 100 transitions. Word has length 10 [2021-11-12 23:34:12,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:34:12,755 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 100 transitions. [2021-11-12 23:34:12,756 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 23:34:12,756 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2021-11-12 23:34:12,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-12 23:34:12,757 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:34:12,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:34:12,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:34:12,758 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:34:12,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:34:12,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1527674777, now seen corresponding path program 1 times [2021-11-12 23:34:12,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:34:12,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981141939] [2021-11-12 23:34:12,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:34:12,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:34:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:34:12,912 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:34:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:34:13,033 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:34:13,034 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:34:13,036 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 23:34:13,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 23:34:13,044 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-12 23:34:13,047 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:34:13,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:34:13 BoogieIcfgContainer [2021-11-12 23:34:13,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:34:13,104 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:34:13,104 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:34:13,104 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:34:13,104 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:34:12" (3/4) ... [2021-11-12 23:34:13,107 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-12 23:34:13,107 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:34:13,108 INFO L158 Benchmark]: Toolchain (without parser) took 2186.42ms. Allocated memory is still 119.5MB. Free memory was 84.1MB in the beginning and 75.7MB in the end (delta: 8.3MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2021-11-12 23:34:13,109 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 81.8MB. Free memory was 52.2MB in the beginning and 52.2MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:34:13,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.59ms. Allocated memory is still 119.5MB. Free memory was 83.8MB in the beginning and 91.2MB in the end (delta: -7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:34:13,119 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.79ms. Allocated memory is still 119.5MB. Free memory was 91.2MB in the beginning and 88.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:34:13,119 INFO L158 Benchmark]: Boogie Preprocessor took 48.78ms. Allocated memory is still 119.5MB. Free memory was 88.5MB in the beginning and 86.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:34:13,120 INFO L158 Benchmark]: RCFGBuilder took 812.44ms. Allocated memory is still 119.5MB. Free memory was 85.9MB in the beginning and 58.4MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-12 23:34:13,122 INFO L158 Benchmark]: TraceAbstraction took 870.44ms. Allocated memory is still 119.5MB. Free memory was 57.6MB in the beginning and 75.7MB in the end (delta: -18.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:34:13,124 INFO L158 Benchmark]: Witness Printer took 4.05ms. Allocated memory is still 119.5MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:34:13,131 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 81.8MB. Free memory was 52.2MB in the beginning and 52.2MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.59ms. Allocated memory is still 119.5MB. Free memory was 83.8MB in the beginning and 91.2MB in the end (delta: -7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.79ms. Allocated memory is still 119.5MB. Free memory was 91.2MB in the beginning and 88.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.78ms. Allocated memory is still 119.5MB. Free memory was 88.5MB in the beginning and 86.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 812.44ms. Allocated memory is still 119.5MB. Free memory was 85.9MB in the beginning and 58.4MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 870.44ms. Allocated memory is still 119.5MB. Free memory was 57.6MB in the beginning and 75.7MB in the end (delta: -18.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.05ms. Allocated memory is still 119.5MB. Free memory is still 75.7MB. 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: 270]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 269. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L265] double x = 0.0; [L266] double y = 0.0; [L267] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [\old(x)=0, \old(y)=0, aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={9:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=0, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [\old(x)=0, \old(y)=0, aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={9:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=0, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [\old(x)=0, \old(y)=0, aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={9:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=0, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=0, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [\old(x)=0, \old(y)=0, aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={9:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=0, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=0, zero_atan2=0] [L267] RET, EXPR __ieee754_atan2(y, x) [L267] double res = __ieee754_atan2(y, x); [L269] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={9:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, res == 0.0 && __signbit_double(res) == 0=0, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=0, zero_atan2=0] [L269] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L270] reach_error() VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={9:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=0, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 25.88ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 88 SdHoareTripleChecker+Invalid, 20.84ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 88 mSDtfsCounter, 14 mSolverCounterSat, 1.52ms 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=74occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 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 23:34:13,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/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_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/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_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/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_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/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 e0ade1ef6f39670f85f34fd118229c96ac1c225bb515b821a13b4050f3a28ad6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:34:15,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:34:15,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:34:15,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:34:15,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:34:15,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:34:15,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:34:15,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:34:15,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:34:15,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:34:15,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:34:15,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:34:15,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:34:15,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:34:15,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:34:15,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:34:15,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:34:15,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:34:15,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:34:15,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:34:15,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:34:15,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:34:15,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:34:15,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:34:15,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:34:15,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:34:15,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:34:15,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:34:15,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:34:15,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:34:15,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:34:15,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:34:15,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:34:15,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:34:15,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:34:15,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:34:15,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:34:15,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:34:15,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:34:15,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:34:15,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:34:15,966 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 23:34:15,990 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:34:15,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:34:15,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:34:15,992 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:34:15,992 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:34:15,992 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:34:15,992 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:34:15,993 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:34:15,993 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:34:15,993 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:34:15,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:34:15,994 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:34:15,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:34:15,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:34:15,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:34:15,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:34:15,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:34:15,996 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:34:15,996 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:34:15,996 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:34:15,996 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:34:15,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:34:15,997 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:34:15,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:34:15,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:34:15,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:34:15,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:34:15,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:34:15,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:34:15,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:34:15,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:34:15,999 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:34:15,999 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:34:15,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:34:15,999 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:34:16,000 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:34:16,000 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_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0ade1ef6f39670f85f34fd118229c96ac1c225bb515b821a13b4050f3a28ad6 [2021-11-12 23:34:16,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:34:16,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:34:16,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:34:16,451 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:34:16,453 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:34:16,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2021-11-12 23:34:16,534 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/data/9f14907df/58e30442195d4a38b06d3309d7c1eafa/FLAG96f179827 [2021-11-12 23:34:17,164 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:34:17,164 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2021-11-12 23:34:17,190 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/data/9f14907df/58e30442195d4a38b06d3309d7c1eafa/FLAG96f179827 [2021-11-12 23:34:17,202 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/data/9f14907df/58e30442195d4a38b06d3309d7c1eafa [2021-11-12 23:34:17,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:34:17,206 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:34:17,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:34:17,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:34:17,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:34:17,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:34:17" (1/1) ... [2021-11-12 23:34:17,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c8db631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:17, skipping insertion in model container [2021-11-12 23:34:17,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:34:17" (1/1) ... [2021-11-12 23:34:17,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:34:17,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:34:17,504 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_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c[6389,6402] [2021-11-12 23:34:17,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:34:17,536 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:34:17,592 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_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c[6389,6402] [2021-11-12 23:34:17,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:34:17,616 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:34:17,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:17 WrapperNode [2021-11-12 23:34:17,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:34:17,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:34:17,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:34:17,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:34:17,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:17" (1/1) ... [2021-11-12 23:34:17,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:17" (1/1) ... [2021-11-12 23:34:17,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:34:17,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:34:17,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:34:17,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:34:17,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:17" (1/1) ... [2021-11-12 23:34:17,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:17" (1/1) ... [2021-11-12 23:34:17,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:17" (1/1) ... [2021-11-12 23:34:17,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:17" (1/1) ... [2021-11-12 23:34:17,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:17" (1/1) ... [2021-11-12 23:34:17,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:17" (1/1) ... [2021-11-12 23:34:17,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:17" (1/1) ... [2021-11-12 23:34:17,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:34:17,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:34:17,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:34:17,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:34:17,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:17" (1/1) ... [2021-11-12 23:34:17,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:34:17,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:34:17,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:34:17,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:34:17,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-12 23:34:17,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-12 23:34:17,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:34:17,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:34:17,849 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-11-12 23:34:17,851 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-11-12 23:34:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-12 23:34:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-11-12 23:34:17,852 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-11-12 23:34:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:34:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:34:17,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:34:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:34:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:34:38,555 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:34:38,555 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-12 23:34:38,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:34:38 BoogieIcfgContainer [2021-11-12 23:34:38,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:34:38,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:34:38,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:34:38,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:34:38,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:34:17" (1/3) ... [2021-11-12 23:34:38,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64912f89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:34:38, skipping insertion in model container [2021-11-12 23:34:38,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:17" (2/3) ... [2021-11-12 23:34:38,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64912f89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:34:38, skipping insertion in model container [2021-11-12 23:34:38,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:34:38" (3/3) ... [2021-11-12 23:34:38,566 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681a.c [2021-11-12 23:34:38,571 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:34:38,572 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:34:38,619 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:34:38,626 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:34:38,627 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:34:38,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 89 states have (on average 1.6629213483146068) internal successors, (148), 90 states have internal predecessors, (148), 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 23:34:38,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 23:34:38,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:34:38,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:34:38,653 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:34:38,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:34:38,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1577988125, now seen corresponding path program 1 times [2021-11-12 23:34:38,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:34:38,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032877166] [2021-11-12 23:34:38,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:34:38,673 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:34:38,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:34:38,676 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:34:38,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:34:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:34:39,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:34:39,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:34:39,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:34:39,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:34:39,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:34:39,528 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:34:39,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032877166] [2021-11-12 23:34:39,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032877166] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:34:39,529 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:34:39,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 23:34:39,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565379251] [2021-11-12 23:34:39,532 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:34:39,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:34:39,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:34:39,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:34:39,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:34:39,575 INFO L87 Difference]: Start difference. First operand has 97 states, 89 states have (on average 1.6629213483146068) internal successors, (148), 90 states have internal predecessors, (148), 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 23:34:39,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:34:39,644 INFO L93 Difference]: Finished difference Result 192 states and 314 transitions. [2021-11-12 23:34:39,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:34:39,646 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 23:34:39,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:34:39,657 INFO L225 Difference]: With dead ends: 192 [2021-11-12 23:34:39,658 INFO L226 Difference]: Without dead ends: 94 [2021-11-12 23:34:39,665 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 23:34:39,671 INFO L933 BasicCegarLoop]: 137 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, 137 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.27ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:34:39,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 7.27ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:34:39,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-12 23:34:39,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-11-12 23:34:39,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.4482758620689655) internal successors, (126), 87 states have internal predecessors, (126), 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 23:34:39,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 134 transitions. [2021-11-12 23:34:39,728 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 134 transitions. Word has length 11 [2021-11-12 23:34:39,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:34:39,728 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 134 transitions. [2021-11-12 23:34:39,729 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 23:34:39,729 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 134 transitions. [2021-11-12 23:34:39,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-12 23:34:39,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:34:39,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:34:39,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:34:39,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:34:39,934 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:34:39,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:34:39,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1202416212, now seen corresponding path program 1 times [2021-11-12 23:34:39,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:34:39,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450046722] [2021-11-12 23:34:39,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:34:39,937 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:34:39,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:34:39,938 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:34:39,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:34:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:34:40,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-12 23:34:40,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:34:40,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-11-12 23:34:43,001 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:34:43,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 23 [2021-11-12 23:34:44,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:34:44,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:35:16,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:16,753 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:35:16,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450046722] [2021-11-12 23:35:16,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1450046722] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:16,753 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:16,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-12 23:35:16,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401299421] [2021-11-12 23:35:16,754 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:16,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:35:16,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:35:16,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:35:16,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=93, Unknown=13, NotChecked=0, Total=132 [2021-11-12 23:35:16,757 INFO L87 Difference]: Start difference. First operand 94 states and 134 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:23,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:23,247 INFO L93 Difference]: Finished difference Result 103 states and 143 transitions. [2021-11-12 23:35:23,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:35:23,248 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-12 23:35:23,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:23,251 INFO L225 Difference]: With dead ends: 103 [2021-11-12 23:35:23,251 INFO L226 Difference]: Without dead ends: 94 [2021-11-12 23:35:23,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 37.7s TimeCoverageRelationStatistics Valid=32, Invalid=108, Unknown=16, NotChecked=0, Total=156 [2021-11-12 23:35:23,254 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 2 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.46ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 67 IncrementalHoareTripleChecker+Unchecked, 40.51ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:23,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1066 Invalid, 69 Unknown, 0 Unchecked, 11.46ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 67 Unchecked, 40.51ms Time] [2021-11-12 23:35:23,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-12 23:35:23,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-11-12 23:35:23,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.4367816091954022) internal successors, (125), 87 states have internal predecessors, (125), 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 23:35:23,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 133 transitions. [2021-11-12 23:35:23,270 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 133 transitions. Word has length 13 [2021-11-12 23:35:23,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:23,270 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 133 transitions. [2021-11-12 23:35:23,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:23,271 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 133 transitions. [2021-11-12 23:35:23,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-12 23:35:23,273 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:23,273 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 23:35:23,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-12 23:35:23,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:35:23,474 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:35:23,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:23,474 INFO L85 PathProgramCache]: Analyzing trace with hash 2039257012, now seen corresponding path program 1 times [2021-11-12 23:35:23,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:35:23,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045934414] [2021-11-12 23:35:23,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:23,475 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:35:23,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:35:23,476 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:35:23,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:35:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:23,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:35:23,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:35:25,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:25,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:35:26,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:26,085 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:35:26,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045934414] [2021-11-12 23:35:26,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045934414] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:26,085 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:26,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 23:35:26,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088518052] [2021-11-12 23:35:26,086 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:26,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:35:26,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:35:26,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:35:26,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:35:26,096 INFO L87 Difference]: Start difference. First operand 94 states and 133 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 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 23:35:26,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:26,303 INFO L93 Difference]: Finished difference Result 124 states and 167 transitions. [2021-11-12 23:35:26,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:35:26,303 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 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 23:35:26,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:26,306 INFO L225 Difference]: With dead ends: 124 [2021-11-12 23:35:26,306 INFO L226 Difference]: Without dead ends: 114 [2021-11-12 23:35:26,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:35:26,308 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 134 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.24ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 48.45ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:26,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 342 Invalid, 10 Unknown, 0 Unchecked, 2.24ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 8 Unchecked, 48.45ms Time] [2021-11-12 23:35:26,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-11-12 23:35:26,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 94. [2021-11-12 23:35:26,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 87 states have internal predecessors, (124), 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 23:35:26,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2021-11-12 23:35:26,323 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 18 [2021-11-12 23:35:26,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:26,324 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2021-11-12 23:35:26,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 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 23:35:26,325 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2021-11-12 23:35:26,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-12 23:35:26,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:26,326 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 23:35:26,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:35:26,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:35:26,550 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:35:26,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:26,551 INFO L85 PathProgramCache]: Analyzing trace with hash 2096515314, now seen corresponding path program 1 times [2021-11-12 23:35:26,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:35:26,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624696947] [2021-11-12 23:35:26,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:26,552 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:35:26,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:35:26,553 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:35:26,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:35:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:27,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:35:27,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:35:27,446 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 29 treesize of output 27 [2021-11-12 23:35:28,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:28,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:35:29,312 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 29 [2021-11-12 23:35:29,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:29,915 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:35:29,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624696947] [2021-11-12 23:35:29,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624696947] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:29,915 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:29,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:35:29,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550600390] [2021-11-12 23:35:29,916 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:29,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:35:29,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:35:29,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:35:29,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:35:29,918 INFO L87 Difference]: Start difference. First operand 94 states and 132 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:33,318 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 23:35:33,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:33,321 INFO L93 Difference]: Finished difference Result 182 states and 250 transitions. [2021-11-12 23:35:33,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:35:33,504 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 23:35:33,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:33,506 INFO L225 Difference]: With dead ends: 182 [2021-11-12 23:35:33,506 INFO L226 Difference]: Without dead ends: 107 [2021-11-12 23:35:33,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:35:33,509 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 59 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3135.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.13ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 3156.21ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:33,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 608 Invalid, 40 Unknown, 0 Unchecked, 3.13ms Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 1 Unknown, 19 Unchecked, 3156.21ms Time] [2021-11-12 23:35:33,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-12 23:35:33,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 87. [2021-11-12 23:35:33,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 80 states have (on average 1.3625) internal successors, (109), 80 states have internal predecessors, (109), 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 23:35:33,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 117 transitions. [2021-11-12 23:35:33,521 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 117 transitions. Word has length 18 [2021-11-12 23:35:33,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:33,522 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 117 transitions. [2021-11-12 23:35:33,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:33,523 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 117 transitions. [2021-11-12 23:35:33,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-12 23:35:33,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:33,524 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 23:35:33,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-12 23:35:33,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:35:33,738 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:35:33,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:33,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1806187276, now seen corresponding path program 1 times [2021-11-12 23:35:33,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:35:33,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611306506] [2021-11-12 23:35:33,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:33,740 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:35:33,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:35:33,741 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:35:33,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:35:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:34,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-12 23:35:34,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:35:34,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-11-12 23:35:36,060 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:35:36,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 21 [2021-11-12 23:35:38,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:38,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:35:40,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:40,621 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:35:40,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611306506] [2021-11-12 23:35:40,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611306506] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:40,622 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:40,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-12 23:35:40,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466216348] [2021-11-12 23:35:40,622 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:40,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:35:40,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:35:40,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:35:40,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:35:40,624 INFO L87 Difference]: Start difference. First operand 87 states and 117 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:41,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:41,656 INFO L93 Difference]: Finished difference Result 139 states and 180 transitions. [2021-11-12 23:35:41,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:35:41,657 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 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 23:35:41,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:41,659 INFO L225 Difference]: With dead ends: 139 [2021-11-12 23:35:41,659 INFO L226 Difference]: Without dead ends: 66 [2021-11-12 23:35:41,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:35:41,661 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 15 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 227.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.06ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 230.38ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:41,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 495 Invalid, 48 Unknown, 0 Unchecked, 2.06ms Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 35 Unchecked, 230.38ms Time] [2021-11-12 23:35:41,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-12 23:35:41,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 57. [2021-11-12 23:35:41,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 52 states have (on average 1.25) internal successors, (65), 52 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:35:41,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2021-11-12 23:35:41,670 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 18 [2021-11-12 23:35:41,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:41,670 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2021-11-12 23:35:41,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:41,671 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2021-11-12 23:35:41,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-12 23:35:41,672 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:41,672 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 23:35:41,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:35:41,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:35:41,890 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:35:41,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:41,891 INFO L85 PathProgramCache]: Analyzing trace with hash 713772658, now seen corresponding path program 1 times [2021-11-12 23:35:41,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:35:41,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402806360] [2021-11-12 23:35:41,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:41,892 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:35:41,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:35:41,907 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:35:41,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:35:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:42,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:35:42,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:35:43,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:43,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:35:43,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:43,948 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:35:43,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402806360] [2021-11-12 23:35:43,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402806360] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:43,950 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:43,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 23:35:43,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662504904] [2021-11-12 23:35:43,950 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:43,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:35:43,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:35:43,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:35:43,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:35:43,954 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:44,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:44,722 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2021-11-12 23:35:44,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:35:44,723 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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 23:35:44,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:44,724 INFO L225 Difference]: With dead ends: 69 [2021-11-12 23:35:44,724 INFO L226 Difference]: Without dead ends: 66 [2021-11-12 23:35:44,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:35:44,726 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 43 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 262.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.09ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 267.43ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:44,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 275 Invalid, 16 Unknown, 0 Unchecked, 1.09ms Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 267.43ms Time] [2021-11-12 23:35:44,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-12 23:35:44,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2021-11-12 23:35:44,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 54 states have (on average 1.2407407407407407) internal successors, (67), 54 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:35:44,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2021-11-12 23:35:44,735 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 18 [2021-11-12 23:35:44,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:44,735 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2021-11-12 23:35:44,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:44,736 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2021-11-12 23:35:44,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-12 23:35:44,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:44,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:44,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:35:44,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:35:44,942 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:35:44,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:44,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1643552697, now seen corresponding path program 1 times [2021-11-12 23:35:44,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:35:44,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202987630] [2021-11-12 23:35:44,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:44,943 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:35:44,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:35:44,944 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:35:44,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:35:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:45,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 23:35:45,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:35:47,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:47,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:35:51,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:51,010 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:35:51,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1202987630] [2021-11-12 23:35:51,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1202987630] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:51,011 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:51,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2021-11-12 23:35:51,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100299779] [2021-11-12 23:35:51,011 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:51,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 23:35:51,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:35:51,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 23:35:51,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:35:51,013 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:53,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:53,618 INFO L93 Difference]: Finished difference Result 69 states and 79 transitions. [2021-11-12 23:35:53,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 23:35:53,620 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 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 22 [2021-11-12 23:35:53,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:53,621 INFO L225 Difference]: With dead ends: 69 [2021-11-12 23:35:53,621 INFO L226 Difference]: Without dead ends: 56 [2021-11-12 23:35:53,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:35:53,622 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 29 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 794.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.38ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 804.54ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:53,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 713 Invalid, 64 Unknown, 0 Unchecked, 2.38ms Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 19 Unchecked, 804.54ms Time] [2021-11-12 23:35:53,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-12 23:35:53,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 53. [2021-11-12 23:35:53,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.25) internal successors, (60), 48 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:35:53,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2021-11-12 23:35:53,632 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 22 [2021-11-12 23:35:53,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:53,633 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2021-11-12 23:35:53,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:53,633 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2021-11-12 23:35:53,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-12 23:35:53,635 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:53,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:53,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:35:53,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:35:53,842 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:35:53,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:53,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1094861174, now seen corresponding path program 1 times [2021-11-12 23:35:53,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:35:53,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930485982] [2021-11-12 23:35:53,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:53,845 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:35:53,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:35:53,846 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:35:53,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 23:35:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:54,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:35:54,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:35:55,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:55,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:35:56,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:56,274 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:35:56,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930485982] [2021-11-12 23:35:56,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930485982] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:56,274 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:56,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 23:35:56,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148288049] [2021-11-12 23:35:56,275 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:56,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:35:56,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:35:56,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:35:56,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:35:56,277 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 23:35:56,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:56,443 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2021-11-12 23:35:56,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:35:56,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2021-11-12 23:35:56,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:56,444 INFO L225 Difference]: With dead ends: 53 [2021-11-12 23:35:56,444 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 23:35:56,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:35:56,446 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.13ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 19.86ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:56,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 14 Invalid, 4 Unknown, 0 Unchecked, 0.13ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 3 Unchecked, 19.86ms Time] [2021-11-12 23:35:56,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 23:35:56,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 23:35:56,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:56,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 23:35:56,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2021-11-12 23:35:56,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:56,449 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 23:35:56,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 23:35:56,449 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 23:35:56,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 23:35:56,453 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 23:35:56,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 23:35:56,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:35:56,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-12 23:35:58,378 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 31) no Hoare annotation was computed. [2021-11-12 23:35:58,378 INFO L858 garLoopResultBuilder]: For program point L26-1(lines 19 33) no Hoare annotation was computed. [2021-11-12 23:35:58,378 INFO L858 garLoopResultBuilder]: For program point fabs_doubleEXIT(lines 19 33) no Hoare annotation was computed. [2021-11-12 23:35:58,379 INFO L858 garLoopResultBuilder]: For program point L26-2(lines 26 31) no Hoare annotation was computed. [2021-11-12 23:35:58,379 INFO L861 garLoopResultBuilder]: At program point fabs_doubleENTRY(lines 19 33) the Hoare annotation is: true [2021-11-12 23:35:58,379 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-11-12 23:35:58,379 INFO L861 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: true [2021-11-12 23:35:58,379 INFO L858 garLoopResultBuilder]: For program point fabs_doubleFINAL(lines 19 33) no Hoare annotation was computed. [2021-11-12 23:35:58,379 INFO L861 garLoopResultBuilder]: At program point L97(line 97) the Hoare annotation is: true [2021-11-12 23:35:58,379 INFO L858 garLoopResultBuilder]: For program point L97-1(line 97) no Hoare annotation was computed. [2021-11-12 23:35:58,379 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 88) no Hoare annotation was computed. [2021-11-12 23:35:58,379 INFO L858 garLoopResultBuilder]: For program point L98(lines 98 114) no Hoare annotation was computed. [2021-11-12 23:35:58,380 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 115) no Hoare annotation was computed. [2021-11-12 23:35:58,380 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2021-11-12 23:35:58,380 INFO L861 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: true [2021-11-12 23:35:58,380 INFO L858 garLoopResultBuilder]: For program point L78-3(lines 76 89) no Hoare annotation was computed. [2021-11-12 23:35:58,380 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 113) no Hoare annotation was computed. [2021-11-12 23:35:58,380 INFO L858 garLoopResultBuilder]: For program point L107-2(lines 90 115) no Hoare annotation was computed. [2021-11-12 23:35:58,380 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 70 74) no Hoare annotation was computed. [2021-11-12 23:35:58,380 INFO L861 garLoopResultBuilder]: At program point L70-2(lines 70 74) the Hoare annotation is: true [2021-11-12 23:35:58,380 INFO L858 garLoopResultBuilder]: For program point L132(line 132) no Hoare annotation was computed. [2021-11-12 23:35:58,380 INFO L858 garLoopResultBuilder]: For program point L70-3(lines 70 74) no Hoare annotation was computed. [2021-11-12 23:35:58,381 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 105) no Hoare annotation was computed. [2021-11-12 23:35:58,381 INFO L858 garLoopResultBuilder]: For program point L132-2(line 132) no Hoare annotation was computed. [2021-11-12 23:35:58,381 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 133) no Hoare annotation was computed. [2021-11-12 23:35:58,381 INFO L858 garLoopResultBuilder]: For program point L91(lines 91 94) no Hoare annotation was computed. [2021-11-12 23:35:58,381 INFO L858 garLoopResultBuilder]: For program point L91-2(lines 91 94) no Hoare annotation was computed. [2021-11-12 23:35:58,381 INFO L858 garLoopResultBuilder]: For program point atan_doubleEXIT(lines 66 134) no Hoare annotation was computed. [2021-11-12 23:35:58,381 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 93) no Hoare annotation was computed. [2021-11-12 23:35:58,381 INFO L861 garLoopResultBuilder]: At program point atan_doubleENTRY(lines 66 134) the Hoare annotation is: true [2021-11-12 23:35:58,381 INFO L858 garLoopResultBuilder]: For program point L76(lines 76 89) no Hoare annotation was computed. [2021-11-12 23:35:58,382 INFO L858 garLoopResultBuilder]: For program point atan_doubleFINAL(lines 66 134) no Hoare annotation was computed. [2021-11-12 23:35:58,382 INFO L858 garLoopResultBuilder]: For program point L217(lines 217 220) no Hoare annotation was computed. [2021-11-12 23:35:58,382 INFO L858 garLoopResultBuilder]: For program point L217-2(lines 215 220) no Hoare annotation was computed. [2021-11-12 23:35:58,382 INFO L858 garLoopResultBuilder]: For program point L201(line 201) no Hoare annotation was computed. [2021-11-12 23:35:58,382 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-12 23:35:58,383 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 209) no Hoare annotation was computed. [2021-11-12 23:35:58,383 INFO L858 garLoopResultBuilder]: For program point L185-1(lines 144 244) no Hoare annotation was computed. [2021-11-12 23:35:58,383 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 208) no Hoare annotation was computed. [2021-11-12 23:35:58,383 INFO L858 garLoopResultBuilder]: For program point L269(line 269) no Hoare annotation was computed. [2021-11-12 23:35:58,383 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-11-12 23:35:58,383 INFO L858 garLoopResultBuilder]: For program point L269-2(lines 269 272) no Hoare annotation was computed. [2021-11-12 23:35:58,383 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 180) no Hoare annotation was computed. [2021-11-12 23:35:58,384 INFO L858 garLoopResultBuilder]: For program point L170-2(lines 144 244) no Hoare annotation was computed. [2021-11-12 23:35:58,384 INFO L854 garLoopResultBuilder]: At program point L220(line 220) the Hoare annotation is: false [2021-11-12 23:35:58,384 INFO L858 garLoopResultBuilder]: For program point L187(lines 187 196) no Hoare annotation was computed. [2021-11-12 23:35:58,384 INFO L854 garLoopResultBuilder]: At program point L220-1(line 220) the Hoare annotation is: false [2021-11-12 23:35:58,384 INFO L858 garLoopResultBuilder]: For program point L220-2(line 220) no Hoare annotation was computed. [2021-11-12 23:35:58,384 INFO L858 garLoopResultBuilder]: For program point L270(line 270) no Hoare annotation was computed. [2021-11-12 23:35:58,384 INFO L858 garLoopResultBuilder]: For program point L171(lines 171 179) no Hoare annotation was computed. [2021-11-12 23:35:58,385 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 243) no Hoare annotation was computed. [2021-11-12 23:35:58,385 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-11-12 23:35:58,385 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-11-12 23:35:58,385 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-11-12 23:35:58,385 INFO L858 garLoopResultBuilder]: For program point L172-2(line 172) no Hoare annotation was computed. [2021-11-12 23:35:58,386 INFO L854 garLoopResultBuilder]: At program point L255(lines 246 256) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short48#1| (= (_ +zero 11 53) |ULTIMATE.start___ieee754_atan2_~y#1|) (= (_ bv0 32) |ULTIMATE.start___signbit_double_#res#1|)) [2021-11-12 23:35:58,386 INFO L858 garLoopResultBuilder]: For program point L222(line 222) no Hoare annotation was computed. [2021-11-12 23:35:58,386 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 156 161) no Hoare annotation was computed. [2021-11-12 23:35:58,386 INFO L854 garLoopResultBuilder]: At program point L156-2(lines 156 161) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_21| (_ BitVec 64))) (let ((.cse1 (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5|))) (let ((.cse0 (select .cse1 (_ bv4 32)))) (and (= .cse0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_21|)) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_21|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_21|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_21|))) (= ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_21|) (select .cse1 (_ bv0 32))) (= |ULTIMATE.start___ieee754_atan2_~ix~1#1| (bvand (_ bv2147483647 32) .cse0)))))) (= (_ +zero 11 53) |ULTIMATE.start___ieee754_atan2_~y#1|) (exists ((|v_skolemized_q#valueAsBitvector_25| (_ BitVec 64)) (|v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12| (_ BitVec 32))) (let ((.cse3 (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12|))) (let ((.cse2 (select .cse3 (_ bv4 32)))) (and (= |ULTIMATE.start___ieee754_atan2_~hx~1#1| .cse2) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_25|) .cse2) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_25|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_25|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_25|))) (= (select .cse3 (_ bv0 32)) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_25|))))))) [2021-11-12 23:35:58,386 INFO L858 garLoopResultBuilder]: For program point L156-3(lines 156 161) no Hoare annotation was computed. [2021-11-12 23:35:58,386 INFO L858 garLoopResultBuilder]: For program point L239(line 239) no Hoare annotation was computed. [2021-11-12 23:35:58,386 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-12 23:35:58,387 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-12 23:35:58,387 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-11-12 23:35:58,387 INFO L861 garLoopResultBuilder]: At program point L273(lines 258 274) the Hoare annotation is: true [2021-11-12 23:35:58,387 INFO L858 garLoopResultBuilder]: For program point L224(line 224) no Hoare annotation was computed. [2021-11-12 23:35:58,387 INFO L858 garLoopResultBuilder]: For program point L241(line 241) no Hoare annotation was computed. [2021-11-12 23:35:58,387 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-11-12 23:35:58,387 INFO L858 garLoopResultBuilder]: For program point L192(line 192) no Hoare annotation was computed. [2021-11-12 23:35:58,387 INFO L858 garLoopResultBuilder]: For program point L226-1(lines 226 230) no Hoare annotation was computed. [2021-11-12 23:35:58,387 INFO L854 garLoopResultBuilder]: At program point L226-2(lines 226 230) the Hoare annotation is: false [2021-11-12 23:35:58,387 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-12 23:35:58,387 INFO L858 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-11-12 23:35:58,388 INFO L854 garLoopResultBuilder]: At program point L144(lines 144 244) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_atan2_#res#1| (_ +zero 11 53)) (= (_ +zero 11 53) |ULTIMATE.start___ieee754_atan2_~y#1|)) [2021-11-12 23:35:58,388 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-12 23:35:58,388 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-12 23:35:58,388 INFO L858 garLoopResultBuilder]: For program point L212-2(line 212) no Hoare annotation was computed. [2021-11-12 23:35:58,388 INFO L858 garLoopResultBuilder]: For program point L163(lines 163 165) no Hoare annotation was computed. [2021-11-12 23:35:58,389 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-12 23:35:58,389 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 270) no Hoare annotation was computed. [2021-11-12 23:35:58,389 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 236) no Hoare annotation was computed. [2021-11-12 23:35:58,389 INFO L858 garLoopResultBuilder]: For program point L198(lines 198 207) no Hoare annotation was computed. [2021-11-12 23:35:58,389 INFO L858 garLoopResultBuilder]: For program point L231-1(lines 224 237) no Hoare annotation was computed. [2021-11-12 23:35:58,390 INFO L858 garLoopResultBuilder]: For program point L231-2(lines 231 236) no Hoare annotation was computed. [2021-11-12 23:35:58,390 INFO L858 garLoopResultBuilder]: For program point L215(lines 215 220) no Hoare annotation was computed. [2021-11-12 23:35:58,390 INFO L858 garLoopResultBuilder]: For program point L149-1(lines 149 154) no Hoare annotation was computed. [2021-11-12 23:35:58,390 INFO L854 garLoopResultBuilder]: At program point L149-2(lines 149 154) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start___ieee754_atan2_~y#1|) (= (_ +zero 11 53) |ULTIMATE.start___ieee754_atan2_~x#1|)) [2021-11-12 23:35:58,390 INFO L858 garLoopResultBuilder]: For program point L149-3(lines 149 154) no Hoare annotation was computed. [2021-11-12 23:35:58,391 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-11-12 23:35:58,391 INFO L858 garLoopResultBuilder]: For program point L166(lines 166 167) no Hoare annotation was computed. [2021-11-12 23:35:58,391 INFO L858 garLoopResultBuilder]: For program point L249-1(lines 249 253) no Hoare annotation was computed. [2021-11-12 23:35:58,391 INFO L858 garLoopResultBuilder]: For program point L183(line 183) no Hoare annotation was computed. [2021-11-12 23:35:58,391 INFO L854 garLoopResultBuilder]: At program point L249-2(lines 249 253) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_atan2_#res#1| (_ +zero 11 53)) |ULTIMATE.start_main_#t~short48#1| (= (_ +zero 11 53) |ULTIMATE.start___ieee754_atan2_~y#1|) (= |ULTIMATE.start_main_~res~0#1| (_ +zero 11 53)) (= (_ +zero 11 53) |ULTIMATE.start___signbit_double_~x#1|)) [2021-11-12 23:35:58,392 INFO L858 garLoopResultBuilder]: For program point L249-3(lines 249 253) no Hoare annotation was computed. [2021-11-12 23:35:58,392 INFO L858 garLoopResultBuilder]: For program point L183-2(line 183) no Hoare annotation was computed. [2021-11-12 23:35:58,392 INFO L854 garLoopResultBuilder]: At program point L167(line 167) the Hoare annotation is: false [2021-11-12 23:35:58,392 INFO L858 garLoopResultBuilder]: For program point L167-1(line 167) no Hoare annotation was computed. [2021-11-12 23:35:58,396 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:58,398 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:35:58,415 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-12 23:35:58,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-12 23:35:58,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-12 23:35:58,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] [2021-11-12 23:35:58,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] [2021-11-12 23:35:58,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] [2021-11-12 23:35:58,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-12 23:35:58,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-12 23:35:58,425 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-12 23:35:58,425 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] [2021-11-12 23:35:58,425 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,425 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] [2021-11-12 23:35:58,425 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,426 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,426 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,426 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] [2021-11-12 23:35:58,426 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:35:58 BoogieIcfgContainer [2021-11-12 23:35:58,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:35:58,430 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:35:58,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:35:58,430 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:35:58,431 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:34:38" (3/4) ... [2021-11-12 23:35:58,434 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 23:35:58,441 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2021-11-12 23:35:58,442 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_double [2021-11-12 23:35:58,452 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2021-11-12 23:35:58,453 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-11-12 23:35:58,454 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-12 23:35:58,455 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 23:35:58,480 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5 : bv32, v_skolemized_q#valueAsBitvector_21 : bv64 :: ((unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5][4bv32] == v_skolemized_q#valueAsBitvector_21[63:32] && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_21[63:63], v_skolemized_q#valueAsBitvector_21[62:52], v_skolemized_q#valueAsBitvector_21[51:0])) && v_skolemized_q#valueAsBitvector_21[31:0] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5][0bv32]) && ix == ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5][4bv32])) && ~Pluszero~LONGDOUBLE() == y) && (\exists v_skolemized_q#valueAsBitvector_25 : bv64, v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12 : bv32 :: ((hx == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12][4bv32] && v_skolemized_q#valueAsBitvector_25[63:32] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12][4bv32]) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_25[63:63], v_skolemized_q#valueAsBitvector_25[62:52], v_skolemized_q#valueAsBitvector_25[51:0])) && unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12][0bv32] == v_skolemized_q#valueAsBitvector_25[31:0]) [2021-11-12 23:35:58,481 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == y [2021-11-12 23:35:58,483 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == ~Pluszero~LONGDOUBLE() && aux-res == 0.0 && __signbit_double(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == y) && res == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x [2021-11-12 23:35:58,484 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (aux-res == 0.0 && __signbit_double(res) == 0-aux && ~Pluszero~LONGDOUBLE() == y) && 0bv32 == \result [2021-11-12 23:35:58,532 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 23:35:58,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:35:58,533 INFO L158 Benchmark]: Toolchain (without parser) took 101327.01ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 36.4MB in the beginning and 35.2MB in the end (delta: 1.2MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2021-11-12 23:35:58,533 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 58.7MB. Free memory was 40.0MB in the beginning and 40.0MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:35:58,534 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.87ms. Allocated memory is still 58.7MB. Free memory was 36.2MB in the beginning and 36.2MB in the end (delta: -37.6kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-12 23:35:58,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.49ms. Allocated memory is still 58.7MB. Free memory was 36.2MB in the beginning and 33.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:35:58,535 INFO L158 Benchmark]: Boogie Preprocessor took 79.13ms. Allocated memory is still 58.7MB. Free memory was 33.8MB in the beginning and 30.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:35:58,535 INFO L158 Benchmark]: RCFGBuilder took 20803.36ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 30.9MB in the beginning and 47.1MB in the end (delta: -16.2MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2021-11-12 23:35:58,536 INFO L158 Benchmark]: TraceAbstraction took 79869.29ms. Allocated memory is still 71.3MB. Free memory was 46.5MB in the beginning and 43.6MB in the end (delta: 2.9MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2021-11-12 23:35:58,536 INFO L158 Benchmark]: Witness Printer took 102.65ms. Allocated memory is still 71.3MB. Free memory was 43.6MB in the beginning and 35.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:35:58,539 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 58.7MB. Free memory was 40.0MB in the beginning and 40.0MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.87ms. Allocated memory is still 58.7MB. Free memory was 36.2MB in the beginning and 36.2MB in the end (delta: -37.6kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.49ms. Allocated memory is still 58.7MB. Free memory was 36.2MB in the beginning and 33.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.13ms. Allocated memory is still 58.7MB. Free memory was 33.8MB in the beginning and 30.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 20803.36ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 30.9MB in the beginning and 47.1MB in the end (delta: -16.2MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * TraceAbstraction took 79869.29ms. Allocated memory is still 71.3MB. Free memory was 46.5MB in the beginning and 43.6MB in the end (delta: 2.9MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * Witness Printer took 102.65ms. Allocated memory is still 71.3MB. Free memory was 43.6MB in the beginning and 35.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 270]: 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, 97 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 79.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 288 SdHoareTripleChecker+Valid, 4567.38ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 286 mSDsluCounter, 3650 SdHoareTripleChecker+Invalid, 4526.09ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 151 IncrementalHoareTripleChecker+Unchecked, 2946 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 704 mSDtfsCounter, 92 mSolverCounterSat, 29.76ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 289 GetRequests, 222 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 50.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=0, InterpolantAutomatonStates: 49, 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, 59 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 44 PreInvPairs, 50 NumberOfFragments, 121 HoareAnnotationTreeSize, 44 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 39 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 58.2s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 272 ConstructedInterpolants, 77 QuantifiedInterpolants, 2122 SizeOfPredicates, 61 NumberOfNonLiveVariables, 1140 ConjunctsInSsa, 75 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: 246]: Loop Invariant Derived loop invariant: (aux-res == 0.0 && __signbit_double(res) == 0-aux && ~Pluszero~LONGDOUBLE() == y) && 0bv32 == \result - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == y && ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 258]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 156]: Loop Invariant [2021-11-12 23:35:58,574 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-12 23:35:58,575 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,575 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,575 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,575 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,575 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,575 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-12 23:35:58,575 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-12 23:35:58,575 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] [2021-11-12 23:35:58,576 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,576 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] [2021-11-12 23:35:58,576 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,576 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,576 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,576 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] [2021-11-12 23:35:58,576 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,577 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-12 23:35:58,577 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,577 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,577 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,577 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,577 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-11-12 23:35:58,577 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-12 23:35:58,577 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-12 23:35:58,577 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] [2021-11-12 23:35:58,577 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,578 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] [2021-11-12 23:35:58,578 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,578 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,578 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] [2021-11-12 23:35:58,578 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12,QUANTIFIED] [2021-11-12 23:35:58,578 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_25,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5 : bv32, v_skolemized_q#valueAsBitvector_21 : bv64 :: ((unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5][4bv32] == v_skolemized_q#valueAsBitvector_21[63:32] && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_21[63:63], v_skolemized_q#valueAsBitvector_21[62:52], v_skolemized_q#valueAsBitvector_21[51:0])) && v_skolemized_q#valueAsBitvector_21[31:0] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5][0bv32]) && ix == ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5][4bv32])) && ~Pluszero~LONGDOUBLE() == y) && (\exists v_skolemized_q#valueAsBitvector_25 : bv64, v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12 : bv32 :: ((hx == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12][4bv32] && v_skolemized_q#valueAsBitvector_25[63:32] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12][4bv32]) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_25[63:63], v_skolemized_q#valueAsBitvector_25[62:52], v_skolemized_q#valueAsBitvector_25[51:0])) && unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_12][0bv32] == v_skolemized_q#valueAsBitvector_25[31:0]) - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: \result == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == y - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: (((\result == ~Pluszero~LONGDOUBLE() && aux-res == 0.0 && __signbit_double(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == y) && res == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x RESULT: Ultimate proved your program to be correct! [2021-11-12 23:35:58,784 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-12 23:35:58,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bfb4c2-9bcb-4eb3-a930-be47ffc12900/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE