./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8 --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 5bcd6030810972ce12a765944bf9ab96af2329d7a9986a8356400ad8ceca68d7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:10:17,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:10:17,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:10:17,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:10:17,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:10:17,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:10:17,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:10:17,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:10:17,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:10:17,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:10:17,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:10:17,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:10:17,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:10:17,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:10:17,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:10:17,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:10:17,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:10:17,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:10:17,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:10:17,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:10:17,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:10:17,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:10:17,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:10:17,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:10:17,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:10:17,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:10:17,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:10:17,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:10:17,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:10:17,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:10:17,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:10:17,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:10:17,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:10:17,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:10:17,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:10:17,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:10:17,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:10:17,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:10:17,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:10:17,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:10:17,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:10:17,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:10:17,593 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:10:17,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:10:17,595 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:10:17,595 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:10:17,595 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:10:17,595 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:10:17,596 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:10:17,596 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:10:17,596 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:10:17,596 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:10:17,597 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:10:17,597 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:10:17,597 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:10:17,597 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:10:17,598 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:10:17,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:10:17,599 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:10:17,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:10:17,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:10:17,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:10:17,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:10:17,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:10:17,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:10:17,600 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:10:17,600 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:10:17,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:10:17,601 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:10:17,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:10:17,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:10:17,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:10:17,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:10:17,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:10:17,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:10:17,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:10:17,603 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:10:17,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:10:17,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:10:17,604 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:10:17,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:10:17,604 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_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bcd6030810972ce12a765944bf9ab96af2329d7a9986a8356400ad8ceca68d7 [2021-11-07 02:10:17,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:10:17,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:10:17,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:10:17,940 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:10:17,941 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:10:17,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2021-11-07 02:10:18,003 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/data/f80e33422/9da8eb22fe7a476bbe13b164068ec341/FLAG9ff5e24af [2021-11-07 02:10:18,547 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:10:18,549 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2021-11-07 02:10:18,566 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/data/f80e33422/9da8eb22fe7a476bbe13b164068ec341/FLAG9ff5e24af [2021-11-07 02:10:18,879 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/data/f80e33422/9da8eb22fe7a476bbe13b164068ec341 [2021-11-07 02:10:18,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:10:18,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:10:18,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:10:18,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:10:18,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:10:18,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:10:18" (1/1) ... [2021-11-07 02:10:18,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436ed1dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:18, skipping insertion in model container [2021-11-07 02:10:18,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:10:18" (1/1) ... [2021-11-07 02:10:18,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:10:18,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:10:19,202 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_bfc597ba-bdf3-4967-b11d-fed082e6327d/sv-benchmarks/c/float-newlib/double_req_bl_0460.c[5763,5776] [2021-11-07 02:10:19,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:10:19,214 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:10:19,278 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_bfc597ba-bdf3-4967-b11d-fed082e6327d/sv-benchmarks/c/float-newlib/double_req_bl_0460.c[5763,5776] [2021-11-07 02:10:19,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:10:19,293 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:10:19,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:19 WrapperNode [2021-11-07 02:10:19,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:10:19,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:10:19,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:10:19,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:10:19,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:19" (1/1) ... [2021-11-07 02:10:19,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:19" (1/1) ... [2021-11-07 02:10:19,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:10:19,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:10:19,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:10:19,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:10:19,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:19" (1/1) ... [2021-11-07 02:10:19,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:19" (1/1) ... [2021-11-07 02:10:19,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:19" (1/1) ... [2021-11-07 02:10:19,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:19" (1/1) ... [2021-11-07 02:10:19,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:19" (1/1) ... [2021-11-07 02:10:19,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:19" (1/1) ... [2021-11-07 02:10:19,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:19" (1/1) ... [2021-11-07 02:10:19,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:10:19,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:10:19,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:10:19,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:10:19,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:19" (1/1) ... [2021-11-07 02:10:19,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:10:19,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:10:19,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:10:19,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:10:19,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 02:10:19,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:10:19,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-07 02:10:19,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 02:10:19,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-07 02:10:19,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:10:19,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:10:19,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 02:10:19,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:10:21,012 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:10:21,012 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-11-07 02:10:21,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:21 BoogieIcfgContainer [2021-11-07 02:10:21,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:10:21,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:10:21,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:10:21,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:10:21,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:10:18" (1/3) ... [2021-11-07 02:10:21,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b37c6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:10:21, skipping insertion in model container [2021-11-07 02:10:21,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:19" (2/3) ... [2021-11-07 02:10:21,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b37c6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:10:21, skipping insertion in model container [2021-11-07 02:10:21,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:21" (3/3) ... [2021-11-07 02:10:21,023 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0460.c [2021-11-07 02:10:21,028 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:10:21,028 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 02:10:21,073 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:10:21,079 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 [2021-11-07 02:10:21,079 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 02:10:21,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 53 states have (on average 1.7169811320754718) internal successors, (91), 54 states have internal predecessors, (91), 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) [2021-11-07 02:10:21,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 02:10:21,098 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:21,099 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:10:21,099 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:10:21,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:21,104 INFO L85 PathProgramCache]: Analyzing trace with hash 442022851, now seen corresponding path program 1 times [2021-11-07 02:10:21,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:10:21,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109001281] [2021-11-07 02:10:21,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:21,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:10:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:21,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:21,262 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:10:21,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109001281] [2021-11-07 02:10:21,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109001281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:21,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:21,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 02:10:21,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744699678] [2021-11-07 02:10:21,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:10:21,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:10:21,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:10:21,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:10:21,301 INFO L87 Difference]: Start difference. First operand has 55 states, 53 states have (on average 1.7169811320754718) internal successors, (91), 54 states have internal predecessors, (91), 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) [2021-11-07 02:10:21,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:21,331 INFO L93 Difference]: Finished difference Result 108 states and 179 transitions. [2021-11-07 02:10:21,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:10:21,333 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 [2021-11-07 02:10:21,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:21,343 INFO L225 Difference]: With dead ends: 108 [2021-11-07 02:10:21,344 INFO L226 Difference]: Without dead ends: 52 [2021-11-07 02:10:21,348 INFO L786 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 [2021-11-07 02:10:21,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-07 02:10:21,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-11-07 02:10:21,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.411764705882353) internal successors, (72), 51 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) [2021-11-07 02:10:21,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 72 transitions. [2021-11-07 02:10:21,405 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 72 transitions. Word has length 9 [2021-11-07 02:10:21,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:21,405 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 72 transitions. [2021-11-07 02:10:21,406 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) [2021-11-07 02:10:21,406 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 72 transitions. [2021-11-07 02:10:21,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 02:10:21,407 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:21,407 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:10:21,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 02:10:21,408 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:10:21,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:21,411 INFO L85 PathProgramCache]: Analyzing trace with hash 168620465, now seen corresponding path program 1 times [2021-11-07 02:10:21,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:10:21,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659528684] [2021-11-07 02:10:21,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:21,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:10:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:10:21,496 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 02:10:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:10:21,556 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 02:10:21,557 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 02:10:21,559 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:10:21,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 02:10:21,564 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-07 02:10:21,566 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:10:21,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:10:21 BoogieIcfgContainer [2021-11-07 02:10:21,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:10:21,619 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:10:21,619 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:10:21,619 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:10:21,620 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:21" (3/4) ... [2021-11-07 02:10:21,622 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 02:10:21,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:10:21,625 INFO L168 Benchmark]: Toolchain (without parser) took 2741.39 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 53.7 MB in the beginning and 74.1 MB in the end (delta: -20.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:10:21,625 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory was 70.3 MB in the beginning and 70.3 MB in the end (delta: 59.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:10:21,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.51 ms. Allocated memory is still 96.5 MB. Free memory was 53.5 MB in the beginning and 66.1 MB in the end (delta: -12.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 02:10:21,626 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.82 ms. Allocated memory is still 96.5 MB. Free memory was 66.1 MB in the beginning and 62.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:10:21,627 INFO L168 Benchmark]: Boogie Preprocessor took 57.83 ms. Allocated memory is still 96.5 MB. Free memory was 62.7 MB in the beginning and 60.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:10:21,628 INFO L168 Benchmark]: RCFGBuilder took 1545.61 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 60.1 MB in the beginning and 56.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:10:21,629 INFO L168 Benchmark]: TraceAbstraction took 601.79 ms. Allocated memory is still 117.4 MB. Free memory was 55.8 MB in the beginning and 74.6 MB in the end (delta: -18.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:10:21,629 INFO L168 Benchmark]: Witness Printer took 3.64 ms. Allocated memory is still 117.4 MB. Free memory was 74.6 MB in the beginning and 74.1 MB in the end (delta: 444.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:10:21,633 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory was 70.3 MB in the beginning and 70.3 MB in the end (delta: 59.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 409.51 ms. Allocated memory is still 96.5 MB. Free memory was 53.5 MB in the beginning and 66.1 MB in the end (delta: -12.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 102.82 ms. Allocated memory is still 96.5 MB. Free memory was 66.1 MB in the beginning and 62.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.83 ms. Allocated memory is still 96.5 MB. Free memory was 62.7 MB in the beginning and 60.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1545.61 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 60.1 MB in the beginning and 56.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 601.79 ms. Allocated memory is still 117.4 MB. Free memory was 55.8 MB in the beginning and 74.6 MB in the end (delta: -18.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.64 ms. Allocated memory is still 117.4 MB. Free memory was 74.6 MB in the beginning and 74.1 MB in the end (delta: 444.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 231]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 134, overapproximation of bitwiseAnd at line 152, overapproximation of someBinaryArithmeticDOUBLEoperation at line 170, overapproximation of someBinaryDOUBLEComparisonOperation at line 215. Possible FailurePath: [L17] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L129-L142] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L223] double x = __VERIFIER_nondet_double(); [L225] COND TRUE x < -1.0 || x > 1.0 [L145] double z, p, q, r, w, s, c, df; [L146] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L148] ieee_double_shape_type gh_u; [L149] gh_u.value = (x) [L150] EXPR gh_u.parts.msw [L150] (hx) = gh_u.parts.msw [L152] ix = hx & 0x7fffffff VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L153] COND FALSE !(ix >= 0x3ff00000) VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L168] COND TRUE ix < 0x3fe00000 [L169] COND TRUE ix <= 0x3c600000 [L170] return pio2_hi_acos + pio2_lo_acos; VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L227] double res = __ieee754_acos(x); [L215] return x != x; [L230] COND TRUE !isnan_double(res) [L231] reach_error() VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 76 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, 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=55occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 02:10:21,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8 --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 5bcd6030810972ce12a765944bf9ab96af2329d7a9986a8356400ad8ceca68d7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:10:24,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:10:24,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:10:24,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:10:24,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:10:24,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:10:24,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:10:24,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:10:24,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:10:24,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:10:24,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:10:24,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:10:24,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:10:24,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:10:24,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:10:24,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:10:24,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:10:24,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:10:24,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:10:24,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:10:24,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:10:24,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:10:24,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:10:24,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:10:24,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:10:24,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:10:24,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:10:24,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:10:24,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:10:24,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:10:24,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:10:24,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:10:24,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:10:24,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:10:24,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:10:24,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:10:24,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:10:24,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:10:24,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:10:24,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:10:24,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:10:24,282 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 02:10:24,324 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:10:24,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:10:24,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:10:24,326 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:10:24,326 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:10:24,327 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:10:24,327 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:10:24,327 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:10:24,328 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:10:24,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:10:24,330 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:10:24,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:10:24,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:10:24,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:10:24,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:10:24,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:10:24,332 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:10:24,332 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:10:24,332 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:10:24,334 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:10:24,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:10:24,339 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:10:24,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:10:24,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:10:24,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:10:24,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:10:24,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:10:24,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:10:24,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:10:24,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:10:24,343 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:10:24,343 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:10:24,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:10:24,343 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:10:24,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:10:24,344 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_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bcd6030810972ce12a765944bf9ab96af2329d7a9986a8356400ad8ceca68d7 [2021-11-07 02:10:24,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:10:24,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:10:24,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:10:24,737 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:10:24,738 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:10:24,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2021-11-07 02:10:24,821 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/data/fedc993ef/9c75c110e18e4789825e7b0648a5c543/FLAG378e0d09c [2021-11-07 02:10:25,402 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:10:25,403 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2021-11-07 02:10:25,412 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/data/fedc993ef/9c75c110e18e4789825e7b0648a5c543/FLAG378e0d09c [2021-11-07 02:10:25,746 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/data/fedc993ef/9c75c110e18e4789825e7b0648a5c543 [2021-11-07 02:10:25,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:10:25,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:10:25,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:10:25,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:10:25,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:10:25,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:10:25" (1/1) ... [2021-11-07 02:10:25,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18e1d7ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:25, skipping insertion in model container [2021-11-07 02:10:25,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:10:25" (1/1) ... [2021-11-07 02:10:25,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:10:25,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:10:26,005 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_bfc597ba-bdf3-4967-b11d-fed082e6327d/sv-benchmarks/c/float-newlib/double_req_bl_0460.c[5763,5776] [2021-11-07 02:10:26,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:10:26,044 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:10:26,133 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_bfc597ba-bdf3-4967-b11d-fed082e6327d/sv-benchmarks/c/float-newlib/double_req_bl_0460.c[5763,5776] [2021-11-07 02:10:26,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:10:26,151 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:10:26,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:26 WrapperNode [2021-11-07 02:10:26,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:10:26,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:10:26,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:10:26,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:10:26,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:26" (1/1) ... [2021-11-07 02:10:26,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:26" (1/1) ... [2021-11-07 02:10:26,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:10:26,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:10:26,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:10:26,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:10:26,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:26" (1/1) ... [2021-11-07 02:10:26,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:26" (1/1) ... [2021-11-07 02:10:26,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:26" (1/1) ... [2021-11-07 02:10:26,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:26" (1/1) ... [2021-11-07 02:10:26,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:26" (1/1) ... [2021-11-07 02:10:26,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:26" (1/1) ... [2021-11-07 02:10:26,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:26" (1/1) ... [2021-11-07 02:10:26,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:10:26,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:10:26,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:10:26,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:10:26,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:26" (1/1) ... [2021-11-07 02:10:26,308 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:10:26,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:10:26,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:10:26,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:10:26,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-07 02:10:26,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-07 02:10:26,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:10:26,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:10:26,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 02:10:26,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:10:26,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:10:26,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 02:10:26,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:10:47,324 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:10:47,325 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-11-07 02:10:47,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:47 BoogieIcfgContainer [2021-11-07 02:10:47,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:10:47,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:10:47,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:10:47,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:10:47,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:10:25" (1/3) ... [2021-11-07 02:10:47,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd5cff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:10:47, skipping insertion in model container [2021-11-07 02:10:47,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:26" (2/3) ... [2021-11-07 02:10:47,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd5cff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:10:47, skipping insertion in model container [2021-11-07 02:10:47,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:47" (3/3) ... [2021-11-07 02:10:47,335 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0460.c [2021-11-07 02:10:47,340 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:10:47,340 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 02:10:47,385 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:10:47,391 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 [2021-11-07 02:10:47,391 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 02:10:47,419 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 104 states have (on average 1.6826923076923077) internal successors, (175), 105 states have internal predecessors, (175), 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) [2021-11-07 02:10:47,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 02:10:47,425 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:47,426 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:10:47,426 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:10:47,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:47,432 INFO L85 PathProgramCache]: Analyzing trace with hash 8448415, now seen corresponding path program 1 times [2021-11-07 02:10:47,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:47,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008565475] [2021-11-07 02:10:47,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:47,445 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:47,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:47,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:47,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:10:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:48,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:10:48,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:48,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:48,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:48,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:48,934 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:10:48,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008565475] [2021-11-07 02:10:48,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008565475] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:48,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:48,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:10:48,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116171913] [2021-11-07 02:10:48,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:10:48,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:10:48,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:10:48,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:10:48,963 INFO L87 Difference]: Start difference. First operand has 106 states, 104 states have (on average 1.6826923076923077) internal successors, (175), 105 states have internal predecessors, (175), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2021-11-07 02:10:48,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:48,992 INFO L93 Difference]: Finished difference Result 209 states and 346 transitions. [2021-11-07 02:10:48,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:10:48,994 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-07 02:10:48,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:49,005 INFO L225 Difference]: With dead ends: 209 [2021-11-07 02:10:49,005 INFO L226 Difference]: Without dead ends: 102 [2021-11-07 02:10:49,008 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:10:49,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-11-07 02:10:49,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-11-07 02:10:49,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.4554455445544554) internal successors, (147), 101 states have internal predecessors, (147), 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) [2021-11-07 02:10:49,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 147 transitions. [2021-11-07 02:10:49,048 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 147 transitions. Word has length 12 [2021-11-07 02:10:49,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:49,048 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 147 transitions. [2021-11-07 02:10:49,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2021-11-07 02:10:49,048 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 147 transitions. [2021-11-07 02:10:49,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 02:10:49,049 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:49,049 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:10:49,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 02:10:49,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:10:49,251 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:10:49,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:49,252 INFO L85 PathProgramCache]: Analyzing trace with hash -409380025, now seen corresponding path program 1 times [2021-11-07 02:10:49,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:49,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008923674] [2021-11-07 02:10:49,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:49,254 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:49,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:49,255 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:49,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:10:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:49,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:10:49,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:56,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:56,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:11:02,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:11:02,450 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:11:02,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2008923674] [2021-11-07 02:11:02,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2008923674] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:11:02,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:11:02,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 02:11:02,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625329412] [2021-11-07 02:11:02,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:11:02,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:11:02,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:11:02,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=36, Unknown=4, NotChecked=0, Total=56 [2021-11-07 02:11:02,455 INFO L87 Difference]: Start difference. First operand 102 states and 147 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-11-07 02:11:12,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:11:12,314 INFO L93 Difference]: Finished difference Result 107 states and 151 transitions. [2021-11-07 02:11:12,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:11:12,336 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 [2021-11-07 02:11:12,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:11:12,337 INFO L225 Difference]: With dead ends: 107 [2021-11-07 02:11:12,337 INFO L226 Difference]: Without dead ends: 16 [2021-11-07 02:11:12,338 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=31, Invalid=55, Unknown=4, NotChecked=0, Total=90 [2021-11-07 02:11:12,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-07 02:11:12,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-07 02:11:12,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 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) [2021-11-07 02:11:12,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-11-07 02:11:12,344 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 13 [2021-11-07 02:11:12,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:11:12,344 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-11-07 02:11:12,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-11-07 02:11:12,345 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-11-07 02:11:12,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 02:11:12,345 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:11:12,346 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:11:12,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:11:12,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:11:12,562 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:11:12,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:11:12,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1384827201, now seen corresponding path program 1 times [2021-11-07 02:11:12,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:11:12,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847854983] [2021-11-07 02:11:12,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:11:12,564 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:11:12,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:11:12,566 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:11:12,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:11:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:11:13,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:11:13,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:11:45,332 WARN L207 SmtUtils]: Spent 7.62 s on a formula simplification that was a NOOP. DAG size: 11 [2021-11-07 02:11:58,323 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-11-07 02:11:58,323 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:11:58,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847854983] [2021-11-07 02:11:58,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-11-07 02:11:58,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1572034259] [2021-11-07 02:11:58,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:11:58,324 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:11:58,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:11:58,333 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:11:58,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-11-07 02:11:58,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-07 02:12:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:01,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 02:12:01,012 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@44e16b6e [2021-11-07 02:12:01,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943121048] [2021-11-07 02:12:01,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:01,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:12:01,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:12:01,016 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:12:01,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 02:12:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:03,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-07 02:12:03,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@44e16b6e [2021-11-07 02:12:03,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:12:03,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-07 02:12:03,128 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-07 02:12:03,128 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-07 02:12:03,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:12:03,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:03,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:03,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:03,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc597ba-bdf3-4967-b11d-fed082e6327d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:12:03,748 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-07 02:12:03,750 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:12:03,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:12:03 BoogieIcfgContainer [2021-11-07 02:12:03,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:12:03,770 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:12:03,770 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:12:03,770 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:12:03,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:47" (3/4) ... [2021-11-07 02:12:03,782 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 02:12:03,787 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:12:03,789 INFO L168 Benchmark]: Toolchain (without parser) took 98037.74 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 46.0 MB in the beginning and 45.5 MB in the end (delta: 506.1 kB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:12:03,790 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 67.1 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:12:03,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.75 ms. Allocated memory is still 67.1 MB. Free memory was 45.7 MB in the beginning and 45.9 MB in the end (delta: -143.1 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:12:03,791 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.67 ms. Allocated memory is still 67.1 MB. Free memory was 45.9 MB in the beginning and 42.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:12:03,792 INFO L168 Benchmark]: Boogie Preprocessor took 58.36 ms. Allocated memory is still 67.1 MB. Free memory was 42.8 MB in the beginning and 39.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:12:03,793 INFO L168 Benchmark]: RCFGBuilder took 21027.43 ms. Allocated memory is still 67.1 MB. Free memory was 39.9 MB in the beginning and 36.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:12:03,794 INFO L168 Benchmark]: TraceAbstraction took 76439.82 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 36.5 MB in the beginning and 45.9 MB in the end (delta: -9.4 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:12:03,796 INFO L168 Benchmark]: Witness Printer took 17.84 ms. Allocated memory is still 81.8 MB. Free memory was 45.9 MB in the beginning and 45.5 MB in the end (delta: 479.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:12:03,799 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 67.1 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 400.75 ms. Allocated memory is still 67.1 MB. Free memory was 45.7 MB in the beginning and 45.9 MB in the end (delta: -143.1 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.67 ms. Allocated memory is still 67.1 MB. Free memory was 45.9 MB in the beginning and 42.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.36 ms. Allocated memory is still 67.1 MB. Free memory was 42.8 MB in the beginning and 39.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 21027.43 ms. Allocated memory is still 67.1 MB. Free memory was 39.9 MB in the beginning and 36.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 76439.82 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 36.5 MB in the beginning and 45.9 MB in the end (delta: -9.4 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. * Witness Printer took 17.84 ms. Allocated memory is still 81.8 MB. Free memory was 45.9 MB in the beginning and 45.5 MB in the end (delta: 479.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 231]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L17] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L129-L142] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L223] double x = __VERIFIER_nondet_double(); [L225] COND TRUE x < -1.0 || x > 1.0 [L145] double z, p, q, r, w, s, c, df; [L146] __int32_t hx, ix; [L148] ieee_double_shape_type gh_u; [L149] gh_u.value = (x) [L150] EXPR gh_u.parts.msw [L150] (hx) = gh_u.parts.msw [L152] ix = hx & 0x7fffffff [L153] COND TRUE ix >= 0x3ff00000 [L154] __uint32_t lx; [L156] ieee_double_shape_type gl_u; [L157] gl_u.value = (x) [L158] EXPR gl_u.parts.lsw [L158] (lx) = gl_u.parts.lsw [L160] COND FALSE !(((ix - 0x3ff00000) | lx) == 0) [L166] return (x - x) / (x - x); [L227] double res = __ieee754_acos(x); [L215] return x != x; [L230] COND TRUE !isnan_double(res) [L231] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 106 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 76.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 63 SDslu, 10 SDs, 0 SdLazy, 13 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 16.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 58.5s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 46 ConstructedInterpolants, 5 QuantifiedInterpolants, 181 SizeOfPredicates, 9 NumberOfNonLiveVariables, 189 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN