./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.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_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/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_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/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_21d0fb48-1620-47c4-9e24-3a1cd537512c/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 9cac107c363e3fd6d917de6ef8bceef6babf5688036a19c829686ca43ca0273d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:05:59,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:05:59,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:05:59,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:05:59,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:05:59,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:05:59,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:05:59,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:05:59,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:05:59,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:05:59,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:05:59,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:05:59,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:05:59,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:05:59,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:05:59,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:05:59,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:05:59,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:05:59,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:05:59,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:05:59,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:05:59,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:05:59,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:05:59,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:05:59,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:05:59,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:05:59,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:05:59,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:05:59,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:05:59,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:05:59,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:05:59,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:05:59,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:05:59,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:05:59,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:05:59,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:05:59,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:05:59,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:05:59,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:05:59,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:05:59,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:05:59,367 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:05:59,414 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:05:59,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:05:59,415 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:05:59,416 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:05:59,416 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:05:59,416 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:05:59,416 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:05:59,416 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:05:59,417 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:05:59,417 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:05:59,417 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:05:59,417 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:05:59,417 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:05:59,420 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:05:59,420 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:05:59,421 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:05:59,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:05:59,422 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:05:59,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:05:59,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:05:59,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:05:59,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:05:59,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:05:59,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:05:59,424 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:05:59,424 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:05:59,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:05:59,424 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:05:59,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:05:59,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:05:59,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:05:59,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:05:59,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:05:59,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:05:59,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:05:59,428 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:05:59,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:05:59,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:05:59,430 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:05:59,430 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:05:59,430 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_21d0fb48-1620-47c4-9e24-3a1cd537512c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cac107c363e3fd6d917de6ef8bceef6babf5688036a19c829686ca43ca0273d [2021-11-12 23:05:59,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:05:59,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:05:59,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:05:59,809 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:05:59,810 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:05:59,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2021-11-12 23:05:59,904 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/data/cff9584b5/57ba41aa88ed4977b6e39527441ab685/FLAG88379b733 [2021-11-12 23:06:00,546 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:06:00,550 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2021-11-12 23:06:00,568 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/data/cff9584b5/57ba41aa88ed4977b6e39527441ab685/FLAG88379b733 [2021-11-12 23:06:00,833 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/data/cff9584b5/57ba41aa88ed4977b6e39527441ab685 [2021-11-12 23:06:00,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:06:00,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:06:00,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:06:00,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:06:00,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:06:00,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:00,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e500e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00, skipping insertion in model container [2021-11-12 23:06:00,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:00,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:06:00,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:06:01,214 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_21d0fb48-1620-47c4-9e24-3a1cd537512c/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c[4700,4713] [2021-11-12 23:06:01,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:06:01,228 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:06:01,305 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_21d0fb48-1620-47c4-9e24-3a1cd537512c/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c[4700,4713] [2021-11-12 23:06:01,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:06:01,344 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:06:01,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:01 WrapperNode [2021-11-12 23:06:01,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:06:01,347 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:06:01,347 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:06:01,347 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:06:01,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:01" (1/1) ... [2021-11-12 23:06:01,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:01" (1/1) ... [2021-11-12 23:06:01,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:06:01,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:06:01,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:06:01,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:06:01,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:01" (1/1) ... [2021-11-12 23:06:01,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:01" (1/1) ... [2021-11-12 23:06:01,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:01" (1/1) ... [2021-11-12 23:06:01,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:01" (1/1) ... [2021-11-12 23:06:01,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:01" (1/1) ... [2021-11-12 23:06:01,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:01" (1/1) ... [2021-11-12 23:06:01,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:01" (1/1) ... [2021-11-12 23:06:01,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:06:01,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:06:01,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:06:01,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:06:01,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:01" (1/1) ... [2021-11-12 23:06:01,533 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:06:01,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:06:01,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:06:01,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:06:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:06:01,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:06:01,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-12 23:06:01,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 23:06:01,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-12 23:06:01,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:06:01,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:06:01,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 23:06:01,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:06:02,320 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:06:02,320 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-12 23:06:02,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:06:02 BoogieIcfgContainer [2021-11-12 23:06:02,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:06:02,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:06:02,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:06:02,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:06:02,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:06:00" (1/3) ... [2021-11-12 23:06:02,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a02c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:06:02, skipping insertion in model container [2021-11-12 23:06:02,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:01" (2/3) ... [2021-11-12 23:06:02,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a02c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:06:02, skipping insertion in model container [2021-11-12 23:06:02,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:06:02" (3/3) ... [2021-11-12 23:06:02,343 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270b.c [2021-11-12 23:06:02,350 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:06:02,350 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:06:02,429 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:06:02,448 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 23:06:02,450 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:06:02,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 45 states have internal predecessors, (75), 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 23:06:02,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-12 23:06:02,483 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:02,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:02,485 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:02,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:02,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1760934509, now seen corresponding path program 1 times [2021-11-12 23:06:02,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:06:02,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441014942] [2021-11-12 23:06:02,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:02,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:06:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:02,689 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 23:06:02,690 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:06:02,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441014942] [2021-11-12 23:06:02,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441014942] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:02,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:02,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 23:06:02,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062195257] [2021-11-12 23:06:02,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:02,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:06:02,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:06:02,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:06:02,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:06:02,747 INFO L87 Difference]: Start difference. First operand has 46 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 45 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 23:06:02,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:02,817 INFO L93 Difference]: Finished difference Result 91 states and 149 transitions. [2021-11-12 23:06:02,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:06:02,820 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-12 23:06:02,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:02,831 INFO L225 Difference]: With dead ends: 91 [2021-11-12 23:06:02,831 INFO L226 Difference]: Without dead ends: 44 [2021-11-12 23:06:02,835 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 23:06:02,840 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.27ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.69ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:02,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 10 Unknown, 0 Unchecked, 2.27ms Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 34.69ms Time] [2021-11-12 23:06:02,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-12 23:06:02,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-12 23:06:02,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 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 23:06:02,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2021-11-12 23:06:02,884 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 8 [2021-11-12 23:06:02,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:02,884 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2021-11-12 23:06:02,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 23:06:02,885 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2021-11-12 23:06:02,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-12 23:06:02,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:02,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:02,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:06:02,887 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:02,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:02,888 INFO L85 PathProgramCache]: Analyzing trace with hash -971347180, now seen corresponding path program 1 times [2021-11-12 23:06:02,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:06:02,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320115146] [2021-11-12 23:06:02,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:02,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:06:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:06:02,941 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:06:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:06:03,033 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:06:03,033 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:06:03,039 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 23:06:03,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 23:06:03,050 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-12 23:06:03,053 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:06:03,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:06:03 BoogieIcfgContainer [2021-11-12 23:06:03,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:06:03,122 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:06:03,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:06:03,123 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:06:03,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:06:02" (3/4) ... [2021-11-12 23:06:03,128 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-12 23:06:03,128 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:06:03,130 INFO L158 Benchmark]: Toolchain (without parser) took 2288.25ms. Allocated memory is still 127.9MB. Free memory was 94.4MB in the beginning and 80.2MB in the end (delta: 14.2MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2021-11-12 23:06:03,131 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory was 47.6MB in the beginning and 47.5MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:06:03,133 INFO L158 Benchmark]: CACSL2BoogieTranslator took 501.77ms. Allocated memory is still 127.9MB. Free memory was 94.2MB in the beginning and 100.0MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:06:03,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.73ms. Allocated memory is still 127.9MB. Free memory was 100.0MB in the beginning and 97.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:06:03,140 INFO L158 Benchmark]: Boogie Preprocessor took 77.80ms. Allocated memory is still 127.9MB. Free memory was 97.6MB in the beginning and 95.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:06:03,140 INFO L158 Benchmark]: RCFGBuilder took 813.99ms. Allocated memory is still 127.9MB. Free memory was 95.5MB in the beginning and 74.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-12 23:06:03,141 INFO L158 Benchmark]: TraceAbstraction took 791.07ms. Allocated memory is still 127.9MB. Free memory was 74.5MB in the beginning and 80.7MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:06:03,142 INFO L158 Benchmark]: Witness Printer took 6.01ms. Allocated memory is still 127.9MB. Free memory was 80.7MB in the beginning and 80.2MB in the end (delta: 580.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:06:03,153 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory was 47.6MB in the beginning and 47.5MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 501.77ms. Allocated memory is still 127.9MB. Free memory was 94.2MB in the beginning and 100.0MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.73ms. Allocated memory is still 127.9MB. Free memory was 100.0MB in the beginning and 97.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.80ms. Allocated memory is still 127.9MB. Free memory was 97.6MB in the beginning and 95.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 813.99ms. Allocated memory is still 127.9MB. Free memory was 95.5MB in the beginning and 74.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 791.07ms. Allocated memory is still 127.9MB. Free memory was 74.5MB in the beginning and 80.7MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.01ms. Allocated memory is still 127.9MB. Free memory was 80.7MB in the beginning and 80.2MB in the end (delta: 580.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 200]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 199, overapproximation of someUnaryDOUBLEoperation at line 113, overapproximation of bitwiseAnd at line 127, overapproximation of someUnaryFLOAToperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 130. Possible FailurePath: [L26] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L109-L117] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L195] float x = 0.0f; [L196] CALL, EXPR __ieee754_asinf(x) [L120] float t, w, p, q, c, r, s; [L121] __int32_t hx, ix; VAL [\old(x)=0, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L123] ieee_float_shape_type gf_u; [L124] gf_u.value = (x) [L125] EXPR gf_u.word [L125] (hx) = gf_u.word [L127] ix = hx & 0x7fffffff VAL [\old(x)=0, huge_asin=1000000000000000000000000000000, hx=-1, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L128] COND TRUE ix == 0x3f800000 [L130] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=0, huge_asin=1000000000000000000000000000000, hx=-1, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L196] RET, EXPR __ieee754_asinf(x) [L196] float res = __ieee754_asinf(x); [L199] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=1000000000000000000000000000001, res == 0.0f && __signbit_float(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L199] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L200] reach_error() VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=1000000000000000000000000000001, tiny_sqrt=1/1000000000000000000000000000000, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 34.69ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 29.68ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 48 mSDtfsCounter, 10 mSolverCounterSat, 2.27ms 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=46occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 23:06:03,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/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_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/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_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/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_21d0fb48-1620-47c4-9e24-3a1cd537512c/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 9cac107c363e3fd6d917de6ef8bceef6babf5688036a19c829686ca43ca0273d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:06:06,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:06:06,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:06:06,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:06:06,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:06:06,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:06:06,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:06:06,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:06:06,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:06:06,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:06:06,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:06:06,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:06:06,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:06:06,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:06:06,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:06:06,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:06:06,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:06:06,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:06:06,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:06:06,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:06:06,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:06:06,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:06:06,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:06:06,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:06:06,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:06:06,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:06:06,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:06:06,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:06:06,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:06:06,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:06:06,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:06:06,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:06:06,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:06:06,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:06:06,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:06:06,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:06:06,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:06:06,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:06:06,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:06:06,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:06:06,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:06:06,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 23:06:06,233 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:06:06,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:06:06,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:06:06,235 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:06:06,235 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:06:06,235 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:06:06,236 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:06:06,236 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:06:06,236 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:06:06,236 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:06:06,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:06:06,238 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:06:06,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:06:06,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:06:06,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:06:06,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:06:06,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:06:06,239 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:06:06,240 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:06:06,240 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:06:06,240 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:06:06,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:06:06,241 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:06:06,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:06:06,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:06:06,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:06:06,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:06:06,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:06:06,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:06:06,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:06:06,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:06:06,243 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:06:06,243 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:06:06,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:06:06,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:06:06,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:06:06,244 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_21d0fb48-1620-47c4-9e24-3a1cd537512c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cac107c363e3fd6d917de6ef8bceef6babf5688036a19c829686ca43ca0273d [2021-11-12 23:06:06,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:06:06,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:06:06,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:06:06,663 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:06:06,664 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:06:06,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2021-11-12 23:06:06,761 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/data/8e3b92c4e/29199afc2b2844c9845dd2e7a9425634/FLAG666333b5d [2021-11-12 23:06:07,502 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:06:07,502 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2021-11-12 23:06:07,516 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/data/8e3b92c4e/29199afc2b2844c9845dd2e7a9425634/FLAG666333b5d [2021-11-12 23:06:07,811 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/data/8e3b92c4e/29199afc2b2844c9845dd2e7a9425634 [2021-11-12 23:06:07,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:06:07,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:06:07,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:06:07,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:06:07,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:06:07,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:06:07" (1/1) ... [2021-11-12 23:06:07,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f2cb9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:07, skipping insertion in model container [2021-11-12 23:06:07,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:06:07" (1/1) ... [2021-11-12 23:06:07,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:06:07,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:06:08,111 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_21d0fb48-1620-47c4-9e24-3a1cd537512c/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c[4700,4713] [2021-11-12 23:06:08,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:06:08,127 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:06:08,186 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_21d0fb48-1620-47c4-9e24-3a1cd537512c/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c[4700,4713] [2021-11-12 23:06:08,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:06:08,213 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:06:08,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:08 WrapperNode [2021-11-12 23:06:08,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:06:08,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:06:08,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:06:08,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:06:08,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:08" (1/1) ... [2021-11-12 23:06:08,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:08" (1/1) ... [2021-11-12 23:06:08,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:06:08,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:06:08,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:06:08,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:06:08,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:08" (1/1) ... [2021-11-12 23:06:08,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:08" (1/1) ... [2021-11-12 23:06:08,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:08" (1/1) ... [2021-11-12 23:06:08,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:08" (1/1) ... [2021-11-12 23:06:08,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:08" (1/1) ... [2021-11-12 23:06:08,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:08" (1/1) ... [2021-11-12 23:06:08,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:08" (1/1) ... [2021-11-12 23:06:08,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:06:08,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:06:08,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:06:08,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:06:08,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:08" (1/1) ... [2021-11-12 23:06:08,411 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:06:08,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:06:08,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:06:08,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:06:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:06:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:06:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-12 23:06:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:06:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:06:08,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:06:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-12 23:06:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:06:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:06:20,806 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:06:20,808 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-12 23:06:20,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:06:20 BoogieIcfgContainer [2021-11-12 23:06:20,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:06:20,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:06:20,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:06:20,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:06:20,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:06:07" (1/3) ... [2021-11-12 23:06:20,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0acb40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:06:20, skipping insertion in model container [2021-11-12 23:06:20,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:08" (2/3) ... [2021-11-12 23:06:20,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0acb40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:06:20, skipping insertion in model container [2021-11-12 23:06:20,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:06:20" (3/3) ... [2021-11-12 23:06:20,828 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270b.c [2021-11-12 23:06:20,836 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:06:20,837 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:06:20,897 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:06:20,906 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 23:06:20,907 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:06:20,935 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 59 states have internal predecessors, (97), 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 23:06:20,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-12 23:06:20,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:20,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:20,944 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:20,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:20,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1900514974, now seen corresponding path program 1 times [2021-11-12 23:06:20,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:06:20,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482957332] [2021-11-12 23:06:20,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:20,988 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:06:20,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:06:20,993 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:06:21,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:06:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:21,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:06:21,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:21,779 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 23:06:21,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:21,850 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 23:06:21,851 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:06:21,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482957332] [2021-11-12 23:06:21,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482957332] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:21,853 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:21,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 23:06:21,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829580486] [2021-11-12 23:06:21,857 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:21,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:06:21,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:06:21,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:06:21,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:06:21,900 INFO L87 Difference]: Start difference. First operand has 60 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 59 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:06:21,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:21,928 INFO L93 Difference]: Finished difference Result 118 states and 192 transitions. [2021-11-12 23:06:21,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:06:21,930 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-12 23:06:21,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:21,942 INFO L225 Difference]: With dead ends: 118 [2021-11-12 23:06:21,942 INFO L226 Difference]: Without dead ends: 57 [2021-11-12 23:06:21,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:06:21,951 INFO L933 BasicCegarLoop]: 78 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, 78 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.51ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:21,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 1.51ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:06:21,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-12 23:06:21,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-12 23:06:21,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 56 states have internal predecessors, (75), 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 23:06:21,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2021-11-12 23:06:21,999 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 9 [2021-11-12 23:06:21,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:21,999 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2021-11-12 23:06:22,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:06:22,000 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2021-11-12 23:06:22,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-12 23:06:22,001 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:22,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:22,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:06:22,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:06:22,230 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:22,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:22,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1487835839, now seen corresponding path program 1 times [2021-11-12 23:06:22,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:06:22,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864716852] [2021-11-12 23:06:22,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:22,233 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:06:22,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:06:22,235 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:06:22,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:06:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:22,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:06:22,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:23,257 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 23:06:23,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:23,745 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 23:06:23,746 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:06:23,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864716852] [2021-11-12 23:06:23,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864716852] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:23,747 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:23,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:06:23,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709194375] [2021-11-12 23:06:23,747 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:23,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:06:23,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:06:23,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:06:23,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:06:23,751 INFO L87 Difference]: Start difference. First operand 57 states and 75 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:06:26,783 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 23:06:29,335 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 23:06:31,618 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 23:06:31,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:31,813 INFO L93 Difference]: Finished difference Result 108 states and 139 transitions. [2021-11-12 23:06:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:06:31,814 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-12 23:06:31,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:31,817 INFO L225 Difference]: With dead ends: 108 [2021-11-12 23:06:31,817 INFO L226 Difference]: Without dead ends: 99 [2021-11-12 23:06:31,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:06:31,820 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 65 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7516.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.90ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 7858.46ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:31,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 654 Invalid, 48 Unknown, 0 Unchecked, 6.90ms Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 3 Unknown, 13 Unchecked, 7858.46ms Time] [2021-11-12 23:06:31,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-12 23:06:31,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 57. [2021-11-12 23:06:31,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 56 states have internal predecessors, (74), 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 23:06:31,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 74 transitions. [2021-11-12 23:06:31,833 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 74 transitions. Word has length 10 [2021-11-12 23:06:31,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:31,833 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 74 transitions. [2021-11-12 23:06:31,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:06:31,834 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 74 transitions. [2021-11-12 23:06:31,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 23:06:31,835 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:31,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:31,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:06:32,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:06:32,058 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:32,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:32,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1242386432, now seen corresponding path program 1 times [2021-11-12 23:06:32,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:06:32,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974117355] [2021-11-12 23:06:32,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:32,060 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:06:32,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:06:32,061 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:06:32,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:06:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:32,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:06:32,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:33,177 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 23:06:33,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:33,628 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 23:06:33,628 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:06:33,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974117355] [2021-11-12 23:06:33,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974117355] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:33,629 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:33,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:06:33,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573772102] [2021-11-12 23:06:33,630 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:33,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:06:33,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:06:33,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:06:33,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:06:33,631 INFO L87 Difference]: Start difference. First operand 57 states and 74 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:06:36,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 23:06:38,629 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 23:06:40,927 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 23:06:42,932 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 23:06:44,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 23:06:45,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:45,066 INFO L93 Difference]: Finished difference Result 108 states and 138 transitions. [2021-11-12 23:06:45,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:06:45,067 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-12 23:06:45,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:45,069 INFO L225 Difference]: With dead ends: 108 [2021-11-12 23:06:45,069 INFO L226 Difference]: Without dead ends: 99 [2021-11-12 23:06:45,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:06:45,072 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 69 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10956.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.51ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 11251.23ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:45,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 632 Invalid, 46 Unknown, 0 Unchecked, 3.51ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 5 Unknown, 18 Unchecked, 11251.23ms Time] [2021-11-12 23:06:45,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-12 23:06:45,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 57. [2021-11-12 23:06:45,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 56 states have internal predecessors, (73), 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 23:06:45,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 73 transitions. [2021-11-12 23:06:45,083 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 73 transitions. Word has length 11 [2021-11-12 23:06:45,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:45,083 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 73 transitions. [2021-11-12 23:06:45,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:06:45,084 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions. [2021-11-12 23:06:45,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-12 23:06:45,085 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:45,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:45,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 23:06:45,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:06:45,298 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:45,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:45,299 INFO L85 PathProgramCache]: Analyzing trace with hash 601224780, now seen corresponding path program 1 times [2021-11-12 23:06:45,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:06:45,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898102163] [2021-11-12 23:06:45,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:45,300 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:06:45,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:06:45,301 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:06:45,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:06:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:46,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:06:46,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:47,315 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 23:06:47,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:47,757 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 23:06:47,758 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:06:47,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898102163] [2021-11-12 23:06:47,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [898102163] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:47,758 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:47,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:06:47,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743688121] [2021-11-12 23:06:47,759 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:47,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:06:47,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:06:47,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:06:47,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:06:47,760 INFO L87 Difference]: Start difference. First operand 57 states and 73 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 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 23:06:48,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:48,022 INFO L93 Difference]: Finished difference Result 66 states and 82 transitions. [2021-11-12 23:06:48,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:06:48,024 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 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 23:06:48,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:48,025 INFO L225 Difference]: With dead ends: 66 [2021-11-12 23:06:48,025 INFO L226 Difference]: Without dead ends: 57 [2021-11-12 23:06:48,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:06:48,027 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 7 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 87.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 89.55ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:48,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 371 Invalid, 20 Unknown, 0 Unchecked, 1.16ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 12 Unchecked, 89.55ms Time] [2021-11-12 23:06:48,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-12 23:06:48,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-12 23:06:48,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 56 states have internal predecessors, (72), 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 23:06:48,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2021-11-12 23:06:48,034 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 13 [2021-11-12 23:06:48,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:48,035 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2021-11-12 23:06:48,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 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 23:06:48,035 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2021-11-12 23:06:48,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-12 23:06:48,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:48,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:48,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:06:48,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:06:48,236 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:48,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:48,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1089938183, now seen corresponding path program 1 times [2021-11-12 23:06:48,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:06:48,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444436272] [2021-11-12 23:06:48,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:48,238 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:06:48,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:06:48,239 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:06:48,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:06:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:48,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:06:48,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:49,108 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 23:06:49,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:49,434 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 23:06:49,434 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:06:49,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444436272] [2021-11-12 23:06:49,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1444436272] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:49,435 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:49,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 23:06:49,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269514711] [2021-11-12 23:06:49,436 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:49,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:06:49,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:06:49,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:06:49,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:06:49,438 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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 23:06:50,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:50,247 INFO L93 Difference]: Finished difference Result 69 states and 83 transitions. [2021-11-12 23:06:50,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:06:50,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-12 23:06:50,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:50,249 INFO L225 Difference]: With dead ends: 69 [2021-11-12 23:06:50,249 INFO L226 Difference]: Without dead ends: 66 [2021-11-12 23:06:50,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:06:50,251 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 157 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 580.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.75ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 600.17ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:50,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 254 Invalid, 30 Unknown, 0 Unchecked, 1.75ms Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 600.17ms Time] [2021-11-12 23:06:50,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-12 23:06:50,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2021-11-12 23:06:50,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.2758620689655173) internal successors, (74), 58 states have internal predecessors, (74), 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 23:06:50,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2021-11-12 23:06:50,260 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 14 [2021-11-12 23:06:50,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:50,261 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions. [2021-11-12 23:06:50,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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 23:06:50,268 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2021-11-12 23:06:50,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-12 23:06:50,268 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:50,269 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 23:06:50,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-12 23:06:50,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:06:50,477 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:50,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:50,478 INFO L85 PathProgramCache]: Analyzing trace with hash 980104924, now seen corresponding path program 1 times [2021-11-12 23:06:50,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:06:50,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99757062] [2021-11-12 23:06:50,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:50,478 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:06:50,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:06:50,479 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:06:50,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:06:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:50,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 23:06:50,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:51,789 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 23:06:51,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:53,073 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 23:06:53,073 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:06:53,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99757062] [2021-11-12 23:06:53,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99757062] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:53,074 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:53,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2021-11-12 23:06:53,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582299723] [2021-11-12 23:06:53,075 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:53,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 23:06:53,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:06:53,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 23:06:53,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:06:53,076 INFO L87 Difference]: Start difference. First operand 59 states and 74 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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 23:06:54,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:54,445 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2021-11-12 23:06:54,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 23:06:54,446 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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 23:06:54,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:54,448 INFO L225 Difference]: With dead ends: 66 [2021-11-12 23:06:54,448 INFO L226 Difference]: Without dead ends: 57 [2021-11-12 23:06:54,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:06:54,450 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 165 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 467.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.56ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 487.72ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:54,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 510 Invalid, 72 Unknown, 0 Unchecked, 2.56ms Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 24 Unchecked, 487.72ms Time] [2021-11-12 23:06:54,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-12 23:06:54,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-12 23:06:54,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 56 states have internal predecessors, (71), 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 23:06:54,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2021-11-12 23:06:54,460 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 71 transitions. Word has length 18 [2021-11-12 23:06:54,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:54,460 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 71 transitions. [2021-11-12 23:06:54,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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 23:06:54,461 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 71 transitions. [2021-11-12 23:06:54,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-12 23:06:54,462 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:54,462 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 23:06:54,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:06:54,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:06:54,687 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:54,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:54,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1026077179, now seen corresponding path program 1 times [2021-11-12 23:06:54,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:06:54,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97958986] [2021-11-12 23:06:54,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:54,689 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:06:54,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:06:54,690 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:06:54,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:06:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:56,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:06:56,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:56,917 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 23:06:56,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:57,591 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 23:06:57,591 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:06:57,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97958986] [2021-11-12 23:06:57,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97958986] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:57,592 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:57,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:06:57,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769828158] [2021-11-12 23:06:57,592 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:57,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:06:57,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:06:57,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:06:57,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:06:57,594 INFO L87 Difference]: Start difference. First operand 57 states and 71 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:06:58,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:58,084 INFO L93 Difference]: Finished difference Result 104 states and 131 transitions. [2021-11-12 23:06:58,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:06:58,085 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-12 23:06:58,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:58,086 INFO L225 Difference]: With dead ends: 104 [2021-11-12 23:06:58,086 INFO L226 Difference]: Without dead ends: 57 [2021-11-12 23:06:58,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:06:58,090 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 68 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 279.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.97ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 334.41ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:58,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 242 Invalid, 19 Unknown, 0 Unchecked, 0.97ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 8 Unchecked, 334.41ms Time] [2021-11-12 23:06:58,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-12 23:06:58,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-12 23:06:58,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 56 states have internal predecessors, (69), 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 23:06:58,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2021-11-12 23:06:58,098 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 26 [2021-11-12 23:06:58,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:58,098 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2021-11-12 23:06:58,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:06:58,099 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2021-11-12 23:06:58,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-12 23:06:58,100 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:58,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:58,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:06:58,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:06:58,326 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:58,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:58,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1298044274, now seen corresponding path program 1 times [2021-11-12 23:06:58,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:06:58,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124301096] [2021-11-12 23:06:58,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:58,328 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:06:58,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:06:58,330 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:06:58,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 23:07:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:00,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:07:00,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:01,373 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 23:07:01,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:04,379 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 23:07:04,379 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:07:04,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124301096] [2021-11-12 23:07:04,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124301096] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:07:04,379 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:07:04,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 23:07:04,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3262882] [2021-11-12 23:07:04,380 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:07:04,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:07:04,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:07:04,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:07:04,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:07:04,382 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 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 23:07:04,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:04,520 INFO L93 Difference]: Finished difference Result 57 states and 69 transitions. [2021-11-12 23:07:04,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:07:04,522 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 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 33 [2021-11-12 23:07:04,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:04,522 INFO L225 Difference]: With dead ends: 57 [2021-11-12 23:07:04,522 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 23:07:04,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:07:04,524 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 131.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.11ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 136.89ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:04,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 8 Invalid, 3 Unknown, 0 Unchecked, 0.11ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 136.89ms Time] [2021-11-12 23:07:04,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 23:07:04,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 23:07:04,525 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 23:07:04,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 23:07:04,525 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2021-11-12 23:07:04,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:04,525 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 23:07:04,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 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 23:07:04,525 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 23:07:04,526 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 23:07:04,528 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 23:07:04,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:04,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:07:04,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-12 23:07:05,472 INFO L854 garLoopResultBuilder]: At program point L184(lines 119 185) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_asinf_~x#1| (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start___ieee754_asinf_#res#1|)) [2021-11-12 23:07:05,472 INFO L858 garLoopResultBuilder]: For program point L135(lines 135 136) no Hoare annotation was computed. [2021-11-12 23:07:05,472 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-12 23:07:05,472 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2021-11-12 23:07:05,473 INFO L854 garLoopResultBuilder]: At program point L87-2(lines 87 91) the Hoare annotation is: false [2021-11-12 23:07:05,473 INFO L858 garLoopResultBuilder]: For program point L87-3(lines 87 91) no Hoare annotation was computed. [2021-11-12 23:07:05,474 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 174) no Hoare annotation was computed. [2021-11-12 23:07:05,474 INFO L858 garLoopResultBuilder]: For program point L170-1(lines 162 180) no Hoare annotation was computed. [2021-11-12 23:07:05,474 INFO L858 garLoopResultBuilder]: For program point L170-2(lines 170 174) no Hoare annotation was computed. [2021-11-12 23:07:05,474 INFO L861 garLoopResultBuilder]: At program point L204(lines 187 205) the Hoare annotation is: true [2021-11-12 23:07:05,474 INFO L858 garLoopResultBuilder]: For program point L122-1(lines 122 126) no Hoare annotation was computed. [2021-11-12 23:07:05,474 INFO L854 garLoopResultBuilder]: At program point L122-2(lines 122 126) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_asinf_~x#1| (_ +zero 8 24)) (= ~huge_asin~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_asin~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-12 23:07:05,474 INFO L858 garLoopResultBuilder]: For program point L56(lines 56 57) no Hoare annotation was computed. [2021-11-12 23:07:05,474 INFO L858 garLoopResultBuilder]: For program point L122-3(lines 122 126) no Hoare annotation was computed. [2021-11-12 23:07:05,475 INFO L854 garLoopResultBuilder]: At program point L23(lines 14 24) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_float_~x#1| (_ +zero 8 24)) (= |ULTIMATE.start___signbit_float_#res#1| (_ bv0 32)) (= |ULTIMATE.start___ieee754_asinf_~x#1| (_ +zero 8 24)) (= |ULTIMATE.start_main_~res~0#1| (_ +zero 8 24)) |ULTIMATE.start_main_#t~short20#1| (= (fp ((_ extract 31 31) |ULTIMATE.start___signbit_float_~w~0#1|) ((_ extract 30 23) |ULTIMATE.start___signbit_float_~w~0#1|) ((_ extract 22 0) |ULTIMATE.start___signbit_float_~w~0#1|)) (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start___ieee754_asinf_#res#1|)) [2021-11-12 23:07:05,475 INFO L858 garLoopResultBuilder]: For program point L56-2(lines 56 57) no Hoare annotation was computed. [2021-11-12 23:07:05,475 INFO L854 garLoopResultBuilder]: At program point L106(lines 94 107) the Hoare annotation is: false [2021-11-12 23:07:05,475 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-11-12 23:07:05,475 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-12 23:07:05,475 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 84) no Hoare annotation was computed. [2021-11-12 23:07:05,476 INFO L854 garLoopResultBuilder]: At program point L92(lines 28 93) the Hoare annotation is: false [2021-11-12 23:07:05,476 INFO L858 garLoopResultBuilder]: For program point L43(lines 43 44) no Hoare annotation was computed. [2021-11-12 23:07:05,476 INFO L858 garLoopResultBuilder]: For program point L159(lines 159 180) no Hoare annotation was computed. [2021-11-12 23:07:05,476 INFO L858 garLoopResultBuilder]: For program point L159-2(lines 119 185) no Hoare annotation was computed. [2021-11-12 23:07:05,476 INFO L858 garLoopResultBuilder]: For program point L77(lines 77 83) no Hoare annotation was computed. [2021-11-12 23:07:05,476 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-12 23:07:05,476 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 46) no Hoare annotation was computed. [2021-11-12 23:07:05,476 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 148) no Hoare annotation was computed. [2021-11-12 23:07:05,477 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 82) no Hoare annotation was computed. [2021-11-12 23:07:05,477 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2021-11-12 23:07:05,477 INFO L854 garLoopResultBuilder]: At program point L96-2(lines 96 100) the Hoare annotation is: false [2021-11-12 23:07:05,477 INFO L854 garLoopResultBuilder]: At program point L64-2(lines 64 73) the Hoare annotation is: false [2021-11-12 23:07:05,477 INFO L858 garLoopResultBuilder]: For program point L64-3(lines 28 93) no Hoare annotation was computed. [2021-11-12 23:07:05,477 INFO L858 garLoopResultBuilder]: For program point L131(lines 131 148) no Hoare annotation was computed. [2021-11-12 23:07:05,477 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-12 23:07:05,477 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 200) no Hoare annotation was computed. [2021-11-12 23:07:05,477 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2021-11-12 23:07:05,477 INFO L858 garLoopResultBuilder]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2021-11-12 23:07:05,478 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 165 169) no Hoare annotation was computed. [2021-11-12 23:07:05,478 INFO L854 garLoopResultBuilder]: At program point L165-2(lines 165 169) the Hoare annotation is: false [2021-11-12 23:07:05,478 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-11-12 23:07:05,478 INFO L858 garLoopResultBuilder]: For program point L33-1(lines 33 37) no Hoare annotation was computed. [2021-11-12 23:07:05,478 INFO L858 garLoopResultBuilder]: For program point L66-2(lines 66 70) no Hoare annotation was computed. [2021-11-12 23:07:05,478 INFO L854 garLoopResultBuilder]: At program point L33-2(lines 33 37) the Hoare annotation is: false [2021-11-12 23:07:05,479 INFO L858 garLoopResultBuilder]: For program point L33-3(lines 33 37) no Hoare annotation was computed. [2021-11-12 23:07:05,479 INFO L858 garLoopResultBuilder]: For program point L50-2(lines 50 51) no Hoare annotation was computed. [2021-11-12 23:07:05,479 INFO L858 garLoopResultBuilder]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2021-11-12 23:07:05,479 INFO L854 garLoopResultBuilder]: At program point L50-3(lines 50 51) the Hoare annotation is: false [2021-11-12 23:07:05,479 INFO L854 garLoopResultBuilder]: At program point L17-2(lines 17 21) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_float_~x#1| (_ +zero 8 24)) (= |ULTIMATE.start___ieee754_asinf_~x#1| (_ +zero 8 24)) (= |ULTIMATE.start_main_~res~0#1| (_ +zero 8 24)) |ULTIMATE.start_main_#t~short20#1| (= (_ +zero 8 24) |ULTIMATE.start___ieee754_asinf_#res#1|)) [2021-11-12 23:07:05,480 INFO L858 garLoopResultBuilder]: For program point L50-4(lines 50 51) no Hoare annotation was computed. [2021-11-12 23:07:05,480 INFO L858 garLoopResultBuilder]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2021-11-12 23:07:05,480 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-11-12 23:07:05,480 INFO L858 garLoopResultBuilder]: For program point L133(lines 133 148) no Hoare annotation was computed. [2021-11-12 23:07:05,480 INFO L858 garLoopResultBuilder]: For program point L199-2(lines 199 202) no Hoare annotation was computed. [2021-11-12 23:07:05,481 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 133 148) no Hoare annotation was computed. [2021-11-12 23:07:05,481 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-11-12 23:07:05,481 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 147) no Hoare annotation was computed. [2021-11-12 23:07:05,481 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 105) no Hoare annotation was computed. [2021-11-12 23:07:05,481 INFO L858 garLoopResultBuilder]: For program point L101-1(lines 94 107) no Hoare annotation was computed. [2021-11-12 23:07:05,482 INFO L858 garLoopResultBuilder]: For program point L101-2(lines 101 105) no Hoare annotation was computed. [2021-11-12 23:07:05,486 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:07:05,488 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:07:05,500 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:07:05,504 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:07:05,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:07:05 BoogieIcfgContainer [2021-11-12 23:07:05,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:07:05,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:07:05,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:07:05,510 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:07:05,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:06:20" (3/4) ... [2021-11-12 23:07:05,514 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 23:07:05,529 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-11-12 23:07:05,530 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-12 23:07:05,530 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-12 23:07:05,531 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 23:07:05,558 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == \result [2021-11-12 23:07:05,559 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((x == ~Pluszero~LONGDOUBLE() && x == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == \result [2021-11-12 23:07:05,559 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((x == ~Pluszero~LONGDOUBLE() && \result == 0bv32) && x == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result [2021-11-12 23:07:05,592 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 23:07:05,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:07:05,593 INFO L158 Benchmark]: Toolchain (without parser) took 57776.90ms. Allocated memory was 54.5MB in the beginning and 75.5MB in the end (delta: 21.0MB). Free memory was 32.6MB in the beginning and 55.5MB in the end (delta: -22.9MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2021-11-12 23:07:05,593 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 35.8MB in the beginning and 35.8MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:07:05,594 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.31ms. Allocated memory is still 54.5MB. Free memory was 32.4MB in the beginning and 33.5MB in the end (delta: -1.1MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-11-12 23:07:05,594 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.92ms. Allocated memory is still 54.5MB. Free memory was 33.5MB in the beginning and 31.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:07:05,595 INFO L158 Benchmark]: Boogie Preprocessor took 90.54ms. Allocated memory is still 54.5MB. Free memory was 31.0MB in the beginning and 28.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:07:05,595 INFO L158 Benchmark]: RCFGBuilder took 12408.65ms. Allocated memory was 54.5MB in the beginning and 75.5MB in the end (delta: 21.0MB). Free memory was 28.7MB in the beginning and 43.3MB in the end (delta: -14.6MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2021-11-12 23:07:05,596 INFO L158 Benchmark]: TraceAbstraction took 44693.20ms. Allocated memory is still 75.5MB. Free memory was 42.6MB in the beginning and 33.6MB in the end (delta: 9.1MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2021-11-12 23:07:05,596 INFO L158 Benchmark]: Witness Printer took 83.15ms. Allocated memory is still 75.5MB. Free memory was 33.6MB in the beginning and 55.5MB in the end (delta: -21.9MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-11-12 23:07:05,598 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 35.8MB in the beginning and 35.8MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.31ms. Allocated memory is still 54.5MB. Free memory was 32.4MB in the beginning and 33.5MB in the end (delta: -1.1MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.92ms. Allocated memory is still 54.5MB. Free memory was 33.5MB in the beginning and 31.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.54ms. Allocated memory is still 54.5MB. Free memory was 31.0MB in the beginning and 28.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 12408.65ms. Allocated memory was 54.5MB in the beginning and 75.5MB in the end (delta: 21.0MB). Free memory was 28.7MB in the beginning and 43.3MB in the end (delta: -14.6MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * TraceAbstraction took 44693.20ms. Allocated memory is still 75.5MB. Free memory was 42.6MB in the beginning and 33.6MB in the end (delta: 9.1MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Witness Printer took 83.15ms. Allocated memory is still 75.5MB. Free memory was 33.6MB in the beginning and 55.5MB in the end (delta: -21.9MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 200]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 22.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 547 SdHoareTripleChecker+Valid, 20758.43ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 547 mSDsluCounter, 2749 SdHoareTripleChecker+Invalid, 20019.83ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 75 IncrementalHoareTripleChecker+Unchecked, 2173 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 141 IncrementalHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 576 mSDtfsCounter, 141 mSolverCounterSat, 18.47ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 270 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 48, 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, 91 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 18 NumberOfFragments, 77 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 28 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 7.4s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 252 ConstructedInterpolants, 25 QuantifiedInterpolants, 1083 SizeOfPredicates, 46 NumberOfNonLiveVariables, 607 ConjunctsInSsa, 61 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: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 122]: Loop Invariant [2021-11-12 23:07:05,607 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 23:07:05,608 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x == ~Pluszero~LONGDOUBLE() && huge_asin == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_asin) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((x == ~Pluszero~LONGDOUBLE() && x == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == \result - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((x == ~Pluszero~LONGDOUBLE() && \result == 0bv32) && x == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: x == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == \result - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-12 23:07:05,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0fb48-1620-47c4-9e24-3a1cd537512c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE