./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/sin_interpolated_negation.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_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/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_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/sin_interpolated_negation.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/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_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/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 9fc903c4e042f1a917ff23806dc398a0ae6250449674c68af7855fc8b73da478 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:51:42,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:51:42,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:51:42,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:51:42,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:51:42,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:51:42,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:51:42,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:51:42,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:51:42,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:51:42,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:51:42,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:51:42,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:51:42,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:51:42,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:51:42,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:51:42,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:51:42,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:51:42,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:51:42,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:51:42,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:51:42,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:51:42,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:51:42,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:51:42,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:51:42,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:51:42,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:51:42,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:51:42,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:51:42,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:51:42,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:51:42,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:51:42,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:51:42,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:51:42,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:51:42,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:51:42,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:51:42,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:51:42,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:51:42,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:51:42,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:51:42,416 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:51:42,475 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:51:42,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:51:42,478 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:51:42,479 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:51:42,480 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:51:42,480 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:51:42,480 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:51:42,480 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:51:42,485 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:51:42,485 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:51:42,485 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:51:42,486 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:51:42,486 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:51:42,486 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:51:42,487 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:51:42,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:51:42,488 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:51:42,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:51:42,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:51:42,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:51:42,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:51:42,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:51:42,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:51:42,492 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:51:42,492 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:51:42,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:51:42,493 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:51:42,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:51:42,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:51:42,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:51:42,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:51:42,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:51:42,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:51:42,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:51:42,498 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:51:42,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:51:42,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:51:42,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:51:42,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:51:42,499 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_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fc903c4e042f1a917ff23806dc398a0ae6250449674c68af7855fc8b73da478 [2021-11-07 01:51:42,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:51:42,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:51:42,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:51:42,826 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:51:42,827 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:51:42,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/float-benchs/sin_interpolated_negation.c [2021-11-07 01:51:42,928 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/data/f140bee22/c94efbbb82084d529eaa512497e661c7/FLAG20b329650 [2021-11-07 01:51:43,535 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:51:43,536 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/sv-benchmarks/c/float-benchs/sin_interpolated_negation.c [2021-11-07 01:51:43,544 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/data/f140bee22/c94efbbb82084d529eaa512497e661c7/FLAG20b329650 [2021-11-07 01:51:43,874 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/data/f140bee22/c94efbbb82084d529eaa512497e661c7 [2021-11-07 01:51:43,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:51:43,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:51:43,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:51:43,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:51:43,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:51:43,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:51:43" (1/1) ... [2021-11-07 01:51:43,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71d87c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:43, skipping insertion in model container [2021-11-07 01:51:43,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:51:43" (1/1) ... [2021-11-07 01:51:43,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:51:43,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:51:44,108 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_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/sv-benchmarks/c/float-benchs/sin_interpolated_negation.c[684,697] [2021-11-07 01:51:44,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:51:44,233 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:51:44,248 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_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/sv-benchmarks/c/float-benchs/sin_interpolated_negation.c[684,697] [2021-11-07 01:51:44,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:51:44,359 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:51:44,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:44 WrapperNode [2021-11-07 01:51:44,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:51:44,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:51:44,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:51:44,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:51:44,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:44" (1/1) ... [2021-11-07 01:51:44,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:44" (1/1) ... [2021-11-07 01:51:44,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:51:44,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:51:44,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:51:44,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:51:44,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:44" (1/1) ... [2021-11-07 01:51:44,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:44" (1/1) ... [2021-11-07 01:51:44,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:44" (1/1) ... [2021-11-07 01:51:44,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:44" (1/1) ... [2021-11-07 01:51:44,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:44" (1/1) ... [2021-11-07 01:51:44,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:44" (1/1) ... [2021-11-07 01:51:44,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:44" (1/1) ... [2021-11-07 01:51:44,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:51:44,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:51:44,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:51:44,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:51:44,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:44" (1/1) ... [2021-11-07 01:51:44,593 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:51:44,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:51:44,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:51:44,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:51:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:51:44,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:51:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-07 01:51:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:51:44,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:51:44,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-07 01:51:46,661 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:51:46,661 INFO L299 CfgBuilder]: Removed 69 assume(true) statements. [2021-11-07 01:51:46,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:51:46 BoogieIcfgContainer [2021-11-07 01:51:46,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:51:46,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:51:46,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:51:46,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:51:46,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:51:43" (1/3) ... [2021-11-07 01:51:46,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a55ddb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:51:46, skipping insertion in model container [2021-11-07 01:51:46,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:44" (2/3) ... [2021-11-07 01:51:46,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a55ddb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:51:46, skipping insertion in model container [2021-11-07 01:51:46,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:51:46" (3/3) ... [2021-11-07 01:51:46,674 INFO L111 eAbstractionObserver]: Analyzing ICFG sin_interpolated_negation.c [2021-11-07 01:51:46,681 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:51:46,681 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:51:46,744 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:51:46,750 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 01:51:46,751 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:51:46,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:46,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-07 01:51:46,772 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:51:46,772 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-07 01:51:46,773 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:51:46,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:51:46,779 INFO L85 PathProgramCache]: Analyzing trace with hash 6334909, now seen corresponding path program 1 times [2021-11-07 01:51:46,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:51:46,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759008415] [2021-11-07 01:51:46,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:51:46,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:51:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:51:47,217 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 01:51:47,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:51:47,439 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 01:51:47,441 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 01:51:47,443 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:51:47,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 01:51:47,449 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-07 01:51:47,453 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:51:47,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:51:47 BoogieIcfgContainer [2021-11-07 01:51:47,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:51:47,488 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:51:47,489 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:51:47,490 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:51:47,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:51:46" (3/4) ... [2021-11-07 01:51:47,496 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 01:51:47,498 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:51:47,501 INFO L168 Benchmark]: Toolchain (without parser) took 3622.15 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 69.4 MB in the beginning and 58.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:51:47,502 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory is still 54.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:51:47,503 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.06 ms. Allocated memory is still 102.8 MB. Free memory was 69.2 MB in the beginning and 67.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:51:47,504 INFO L168 Benchmark]: Boogie Procedure Inliner took 117.43 ms. Allocated memory is still 102.8 MB. Free memory was 67.0 MB in the beginning and 61.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:51:47,504 INFO L168 Benchmark]: Boogie Preprocessor took 93.76 ms. Allocated memory is still 102.8 MB. Free memory was 61.1 MB in the beginning and 56.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:51:47,506 INFO L168 Benchmark]: RCFGBuilder took 2090.95 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 56.4 MB in the beginning and 63.8 MB in the end (delta: -7.3 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:51:47,507 INFO L168 Benchmark]: TraceAbstraction took 821.05 ms. Allocated memory is still 123.7 MB. Free memory was 62.6 MB in the beginning and 58.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:51:47,508 INFO L168 Benchmark]: Witness Printer took 10.93 ms. Allocated memory is still 123.7 MB. Free memory was 58.6 MB in the beginning and 58.4 MB in the end (delta: 216.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:51:47,512 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory is still 54.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 479.06 ms. Allocated memory is still 102.8 MB. Free memory was 69.2 MB in the beginning and 67.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 117.43 ms. Allocated memory is still 102.8 MB. Free memory was 67.0 MB in the beginning and 61.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 93.76 ms. Allocated memory is still 102.8 MB. Free memory was 61.1 MB in the beginning and 56.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2090.95 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 56.4 MB in the beginning and 63.8 MB in the end (delta: -7.3 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 821.05 ms. Allocated memory is still 123.7 MB. Free memory was 62.6 MB in the beginning and 58.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * Witness Printer took 10.93 ms. Allocated memory is still 123.7 MB. Free memory was 58.6 MB in the beginning and 58.4 MB in the end (delta: 216.2 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: 17]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 121, overapproximation of someUnaryDOUBLEoperation at line 142, overapproximation of someBinaryArithmeticDOUBLEoperation at line 120, overapproximation of someBinaryDOUBLEComparisonOperation at line 150, overapproximation of to_real at line 122. Possible FailurePath: [L20-L112] const double T[362] = { 0.00000000000000, 0.01745240643728, 0.03489949670250, 0.05233595624294, 0.06975647374413, 0.08715574274766, 0.10452846326765, 0.12186934340515, 0.13917310096007, 0.15643446504023, 0.17364817766693, 0.19080899537654, 0.20791169081776, 0.22495105434386, 0.24192189559967, 0.25881904510252, 0.27563735581700, 0.29237170472274, 0.30901699437495, 0.32556815445716, 0.34202014332567, 0.35836794954530, 0.37460659341591, 0.39073112848927, 0.40673664307580, 0.42261826174070, 0.43837114678908, 0.45399049973955, 0.46947156278589, 0.48480962024634, 0.50000000000000, 0.51503807491005, 0.52991926423320, 0.54463903501503, 0.55919290347075, 0.57357643635105, 0.58778525229247, 0.60181502315205, 0.61566147532566, 0.62932039104984, 0.64278760968654, 0.65605902899051, 0.66913060635886, 0.68199836006250, 0.69465837045900, 0.70710678118655, 0.71933980033865, 0.73135370161917, 0.74314482547739, 0.75470958022277, 0.76604444311898, 0.77714596145697, 0.78801075360672, 0.79863551004729, 0.80901699437495, 0.81915204428899, 0.82903757255504, 0.83867056794542, 0.84804809615643, 0.85716730070211, 0.86602540378444, 0.87461970713940, 0.88294759285893, 0.89100652418837, 0.89879404629917, 0.90630778703665, 0.91354545764260, 0.92050485345244, 0.92718385456679, 0.93358042649720, 0.93969262078591, 0.94551857559932, 0.95105651629515, 0.95630475596304, 0.96126169593832, 0.96592582628907, 0.97029572627600, 0.97437006478524, 0.97814760073381, 0.98162718344766, 0.98480775301221, 0.98768834059514, 0.99026806874157, 0.99254615164132, 0.99452189536827, 0.99619469809175, 0.99756405025982, 0.99862953475457, 0.99939082701910, 0.99984769515639, 1.00000000000000, 0.99984769515639, 0.99939082701910, 0.99862953475457, 0.99756405025982, 0.99619469809175, 0.99452189536827, 0.99254615164132, 0.99026806874157, 0.98768834059514, 0.98480775301221, 0.98162718344766, 0.97814760073381, 0.97437006478524, 0.97029572627600, 0.96592582628907, 0.96126169593832, 0.95630475596304, 0.95105651629515, 0.94551857559932, 0.93969262078591, 0.93358042649720, 0.92718385456679, 0.92050485345244, 0.91354545764260, 0.90630778703665, 0.89879404629917, 0.89100652418837, 0.88294759285893, 0.87461970713940, 0.86602540378444, 0.85716730070211, 0.84804809615643, 0.83867056794542, 0.82903757255504, 0.81915204428899, 0.80901699437495, 0.79863551004729, 0.78801075360672, 0.77714596145697, 0.76604444311898, 0.75470958022277, 0.74314482547739, 0.73135370161917, 0.71933980033865, 0.70710678118655, 0.69465837045900, 0.68199836006250, 0.66913060635886, 0.65605902899051, 0.64278760968654, 0.62932039104984, 0.61566147532566, 0.60181502315205, 0.58778525229247, 0.57357643635105, 0.55919290347075, 0.54463903501503, 0.52991926423320, 0.51503807491005, 0.50000000000000, 0.48480962024634, 0.46947156278589, 0.45399049973955, 0.43837114678908, 0.42261826174070, 0.40673664307580, 0.39073112848927, 0.37460659341591, 0.35836794954530, 0.34202014332567, 0.32556815445716, 0.30901699437495, 0.29237170472274, 0.27563735581700, 0.25881904510252, 0.24192189559967, 0.22495105434387, 0.20791169081776, 0.19080899537654, 0.17364817766693, 0.15643446504023, 0.13917310096007, 0.12186934340515, 0.10452846326765, 0.08715574274766, 0.06975647374413, 0.05233595624294, 0.03489949670250, 0.01745240643728, 0.00000000000000, -0.01745240643728, -0.03489949670250, -0.05233595624294, -0.06975647374412, -0.08715574274766, -0.10452846326765, -0.12186934340515, -0.13917310096007, -0.15643446504023, -0.17364817766693, -0.19080899537654, -0.20791169081776, -0.22495105434386, -0.24192189559967, -0.25881904510252, -0.27563735581700, -0.29237170472274, -0.30901699437495, -0.32556815445716, -0.34202014332567, -0.35836794954530, -0.37460659341591, -0.39073112848927, -0.40673664307580, -0.42261826174070, -0.43837114678908, -0.45399049973955, -0.46947156278589, -0.48480962024634, -0.50000000000000, -0.51503807491005, -0.52991926423320, -0.54463903501503, -0.55919290347075, -0.57357643635105, -0.58778525229247, -0.60181502315205, -0.61566147532566, -0.62932039104984, -0.64278760968654, -0.65605902899051, -0.66913060635886, -0.68199836006250, -0.69465837045900, -0.70710678118655, -0.71933980033865, -0.73135370161917, -0.74314482547739, -0.75470958022277, -0.76604444311898, -0.77714596145697, -0.78801075360672, -0.79863551004729, -0.80901699437495, -0.81915204428899, -0.82903757255504, -0.83867056794542, -0.84804809615643, -0.85716730070211, -0.86602540378444, -0.87461970713940, -0.88294759285893, -0.89100652418837, -0.89879404629917, -0.90630778703665, -0.91354545764260, -0.92050485345244, -0.92718385456679, -0.93358042649720, -0.93969262078591, -0.94551857559932, -0.95105651629515, -0.95630475596304, -0.96126169593832, -0.96592582628907, -0.97029572627600, -0.97437006478524, -0.97814760073381, -0.98162718344766, -0.98480775301221, -0.98768834059514, -0.99026806874157, -0.99254615164132, -0.99452189536827, -0.99619469809175, -0.99756405025982, -0.99862953475457, -0.99939082701910, -0.99984769515639, -1.00000000000000, -0.99984769515639, -0.99939082701910, -0.99862953475457, -0.99756405025982, -0.99619469809175, -0.99452189536827, -0.99254615164132, -0.99026806874157, -0.98768834059514, -0.98480775301221, -0.98162718344766, -0.97814760073381, -0.97437006478524, -0.97029572627600, -0.96592582628907, -0.96126169593832, -0.95630475596304, -0.95105651629515, -0.94551857559932, -0.93969262078591, -0.93358042649720, -0.92718385456679, -0.92050485345244, -0.91354545764260, -0.90630778703665, -0.89879404629917, -0.89100652418837, -0.88294759285893, -0.87461970713940, -0.86602540378444, -0.85716730070211, -0.84804809615643, -0.83867056794542, -0.82903757255504, -0.81915204428899, -0.80901699437495, -0.79863551004729, -0.78801075360672, -0.77714596145697, -0.76604444311898, -0.75470958022277, -0.74314482547739, -0.73135370161917, -0.71933980033865, -0.70710678118655, -0.69465837045900, -0.68199836006250, -0.66913060635886, -0.65605902899051, -0.64278760968654, -0.62932039104984, -0.61566147532566, -0.60181502315205, -0.58778525229247, -0.57357643635105, -0.55919290347075, -0.54463903501503, -0.52991926423321, -0.51503807491005, -0.50000000000000, -0.48480962024634, -0.46947156278589, -0.45399049973955, -0.43837114678908, -0.42261826174070, -0.40673664307580, -0.39073112848927, -0.37460659341591, -0.35836794954530, -0.34202014332567, -0.32556815445716, -0.30901699437495, -0.29237170472274, -0.27563735581700, -0.25881904510252, -0.24192189559967, -0.22495105434387, -0.20791169081776, -0.19080899537654, -0.17364817766693, -0.15643446504023, -0.13917310096007, -0.12186934340515, -0.10452846326765, -0.08715574274766, -0.06975647374413, -0.05233595624294, -0.03489949670250, -0.01745240643728, 0, 0 }; [L148] double a, aa, r; [L150] a = -360 VAL [T={4:0}] [L150] COND TRUE a <= 360 [L151] aa = __VERIFIER_nondet_double() [L15] COND FALSE !(!cond) [L142] COND TRUE x<0 [L136] COND TRUE x>180 [L130] COND FALSE !(x<0) [L117] double dx, i_dx, v_inf; [L118] double v_sup; [L119] int i; [L120] dx = 2*x [L121] i = dx [L122] i_dx = i [L123] EXPR T[i] [L123] v_inf = T[i] [L124] EXPR T[i+1] [L124] v_sup = T[i+1] [L125] return v_inf + (dx - i_dx) * (v_sup - v_inf); [L131] return SIN_0_180(x); [L136] return SIN_180(x-360.*(int)((x+180.)/360.)); [L142] return -SIN_POS(-x); [L142] COND FALSE !(x<0) [L136] COND FALSE !(x>180) [L130] COND FALSE !(x<0) [L117] double dx, i_dx, v_inf; [L118] double v_sup; [L119] int i; [L120] dx = 2*x [L121] i = dx [L122] i_dx = i [L123] EXPR T[i] [L123] v_inf = T[i] [L124] EXPR T[i+1] [L124] v_sup = T[i+1] [L125] return v_inf + (dx - i_dx) * (v_sup - v_inf); [L131] return SIN_0_180(x); [L137] return SIN_180(x); [L143] return SIN_POS(x); [L154] r = SIN(aa) + SIN(-aa) [L17] COND TRUE !(cond) VAL [T={4:0}] [L17] reach_error() VAL [T={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 01:51:47,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/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_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/sin_interpolated_negation.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/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_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/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 9fc903c4e042f1a917ff23806dc398a0ae6250449674c68af7855fc8b73da478 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:51:50,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:51:50,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:51:50,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:51:50,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:51:50,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:51:50,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:51:50,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:51:50,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:51:50,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:51:50,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:51:50,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:51:50,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:51:50,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:51:50,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:51:50,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:51:50,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:51:50,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:51:50,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:51:50,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:51:50,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:51:50,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:51:50,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:51:50,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:51:50,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:51:50,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:51:50,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:51:50,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:51:50,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:51:50,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:51:50,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:51:50,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:51:50,624 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:51:50,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:51:50,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:51:50,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:51:50,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:51:50,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:51:50,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:51:50,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:51:50,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:51:50,640 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:51:50,703 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:51:50,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:51:50,705 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:51:50,706 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:51:50,706 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:51:50,706 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:51:50,706 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:51:50,707 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:51:50,707 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:51:50,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:51:50,710 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:51:50,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:51:50,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:51:50,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:51:50,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:51:50,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:51:50,711 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:51:50,712 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:51:50,712 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:51:50,712 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:51:50,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:51:50,713 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:51:50,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:51:50,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:51:50,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:51:50,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:51:50,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:51:50,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:51:50,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:51:50,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:51:50,715 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:51:50,715 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:51:50,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:51:50,716 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:51:50,716 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:51:50,717 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_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fc903c4e042f1a917ff23806dc398a0ae6250449674c68af7855fc8b73da478 [2021-11-07 01:51:51,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:51:51,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:51:51,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:51:51,272 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:51:51,273 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:51:51,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/float-benchs/sin_interpolated_negation.c [2021-11-07 01:51:51,385 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/data/c6a61e1bc/a549fed077594ffa9ab30719d6d30706/FLAG10d93617f [2021-11-07 01:51:51,995 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:51:51,997 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/sv-benchmarks/c/float-benchs/sin_interpolated_negation.c [2021-11-07 01:51:52,009 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/data/c6a61e1bc/a549fed077594ffa9ab30719d6d30706/FLAG10d93617f [2021-11-07 01:51:52,320 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/data/c6a61e1bc/a549fed077594ffa9ab30719d6d30706 [2021-11-07 01:51:52,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:51:52,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:51:52,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:51:52,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:51:52,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:51:52,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:51:52" (1/1) ... [2021-11-07 01:51:52,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16de54b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:52, skipping insertion in model container [2021-11-07 01:51:52,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:51:52" (1/1) ... [2021-11-07 01:51:52,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:51:52,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:51:52,609 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_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/sv-benchmarks/c/float-benchs/sin_interpolated_negation.c[684,697] [2021-11-07 01:51:52,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:51:52,823 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:51:52,840 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_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/sv-benchmarks/c/float-benchs/sin_interpolated_negation.c[684,697] [2021-11-07 01:51:52,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:51:53,066 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:51:53,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:53 WrapperNode [2021-11-07 01:51:53,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:51:53,069 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:51:53,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:51:53,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:51:53,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:53" (1/1) ... [2021-11-07 01:51:53,139 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:53" (1/1) ... [2021-11-07 01:51:53,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:51:53,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:51:53,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:51:53,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:51:53,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:53" (1/1) ... [2021-11-07 01:51:53,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:53" (1/1) ... [2021-11-07 01:51:53,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:53" (1/1) ... [2021-11-07 01:51:53,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:53" (1/1) ... [2021-11-07 01:51:53,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:53" (1/1) ... [2021-11-07 01:51:53,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:53" (1/1) ... [2021-11-07 01:51:53,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:53" (1/1) ... [2021-11-07 01:51:53,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:51:53,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:51:53,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:51:53,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:51:53,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:53" (1/1) ... [2021-11-07 01:51:53,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:51:53,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:51:53,442 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:51:53,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:51:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-07 01:51:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:51:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:51:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-07 01:51:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:51:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:52:40,078 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:52:40,079 INFO L299 CfgBuilder]: Removed 69 assume(true) statements. [2021-11-07 01:52:40,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:52:40 BoogieIcfgContainer [2021-11-07 01:52:40,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:52:40,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:52:40,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:52:40,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:52:40,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:51:52" (1/3) ... [2021-11-07 01:52:40,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f8b2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:52:40, skipping insertion in model container [2021-11-07 01:52:40,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:53" (2/3) ... [2021-11-07 01:52:40,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f8b2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:52:40, skipping insertion in model container [2021-11-07 01:52:40,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:52:40" (3/3) ... [2021-11-07 01:52:40,091 INFO L111 eAbstractionObserver]: Analyzing ICFG sin_interpolated_negation.c [2021-11-07 01:52:40,098 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:52:40,099 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:52:40,159 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:52:40,166 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 01:52:40,166 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:52:40,185 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 56 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:52:40,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 01:52:40,193 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:52:40,194 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:52:40,195 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:52:40,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:52:40,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1230190802, now seen corresponding path program 1 times [2021-11-07 01:52:40,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:52:40,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349231500] [2021-11-07 01:52:40,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:52:40,227 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:52:40,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:52:40,232 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:52:40,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:52:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:52:44,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:52:44,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:52:45,169 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 01:52:45,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:52:45,359 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 01:52:45,360 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:52:45,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349231500] [2021-11-07 01:52:45,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349231500] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:52:45,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:52:45,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:52:45,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306919733] [2021-11-07 01:52:45,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:52:45,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:52:45,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:52:45,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:52:45,397 INFO L87 Difference]: Start difference. First operand has 57 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 56 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:52:45,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:52:45,420 INFO L93 Difference]: Finished difference Result 112 states and 146 transitions. [2021-11-07 01:52:45,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:52:45,422 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-07 01:52:45,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:52:45,431 INFO L225 Difference]: With dead ends: 112 [2021-11-07 01:52:45,432 INFO L226 Difference]: Without dead ends: 53 [2021-11-07 01:52:45,434 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 40 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 01:52:45,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-07 01:52:45,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-07 01:52:45,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 52 states have internal predecessors, (67), 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 01:52:45,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2021-11-07 01:52:45,485 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 21 [2021-11-07 01:52:45,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:52:45,487 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2021-11-07 01:52:45,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:52:45,487 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2021-11-07 01:52:45,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 01:52:45,491 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:52:45,492 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:52:45,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:52:45,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:52:45,700 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:52:45,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:52:45,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1070631788, now seen corresponding path program 1 times [2021-11-07 01:52:45,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:52:45,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824523703] [2021-11-07 01:52:45,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:52:45,707 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:52:45,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:52:45,709 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:52:45,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:52:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:52:50,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 01:52:50,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:53:05,891 WARN L838 $PredicateComparison]: unable to prove that (or (and (or (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (not (fp.leq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) ((_ to_fp 11 53) c_currentRoundingMode 2.0))))) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (not (fp.geq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))))) (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32))) (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~a~0 .cse0)) (fp.leq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0))))))) is different from false [2021-11-07 01:53:16,331 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~a~0 .cse0)) (fp.leq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0))))) is different from false [2021-11-07 01:53:18,375 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~a~0 .cse0)) (fp.leq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0))))) is different from true [2021-11-07 01:53:36,443 WARN L207 SmtUtils]: Spent 8.38 s on a formula simplification that was a NOOP. DAG size: 17 [2021-11-07 01:53:45,956 WARN L838 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_SIN_POS_~x c_ULTIMATE.start_main_~aa~0) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~a~0 .cse0)) (fp.leq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)))))) is different from false [2021-11-07 01:54:09,406 WARN L207 SmtUtils]: Spent 9.79 s on a formula simplification that was a NOOP. DAG size: 17 [2021-11-07 01:54:19,860 WARN L838 $PredicateComparison]: unable to prove that (and (fp.lt c_ULTIMATE.start_main_~aa~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~a~0 .cse0)) (fp.leq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)))))) is different from false [2021-11-07 01:55:11,351 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~aa~0 (_ FloatingPoint 11 53)) (ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~a~0 .cse0)) (= (fp.neg ULTIMATE.start_main_~aa~0) c_ULTIMATE.start_SIN_~x) (fp.lt ULTIMATE.start_main_~aa~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0))))) is different from false [2021-11-07 01:55:38,679 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~aa~0 (_ FloatingPoint 11 53)) (ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~a~0 .cse0)) (fp.lt ULTIMATE.start_main_~aa~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (= c_ULTIMATE.start_SIN_POS_~x (fp.neg ULTIMATE.start_main_~aa~0)) (fp.leq ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0))))) is different from false [2021-11-07 01:56:03,520 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~aa~0 (_ FloatingPoint 11 53)) (ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~a~0 .cse0)) (= c_ULTIMATE.start_SIN_180_~x (fp.neg ULTIMATE.start_main_~aa~0)) (fp.lt ULTIMATE.start_main_~aa~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0))))) is different from false [2021-11-07 01:56:04,118 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 01:56:04,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:56:30,158 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 01:56:30,158 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:56:30,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824523703] [2021-11-07 01:56:30,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824523703] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:30,159 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:30,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 9] imperfect sequences [] total 18 [2021-11-07 01:56:30,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624182079] [2021-11-07 01:56:30,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-07 01:56:30,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:56:30,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-07 01:56:30,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=75, Unknown=22, NotChecked=168, Total=306 [2021-11-07 01:56:30,164 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 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 01:56:42,948 WARN L838 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_SIN_POS_~x c_ULTIMATE.start_main_~aa~0) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (or (not (fp.lt (fp.neg c_ULTIMATE.start_main_~aa~0) .cse0)) (not (fp.lt c_ULTIMATE.start_SIN_POS_~x .cse0)))) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~a~0 .cse1)) (fp.leq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse1)))))) is different from false [2021-11-07 01:57:00,583 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (and (not (fp.lt (fp.neg c_ULTIMATE.start_main_~aa~0) .cse0)) (fp.lt c_ULTIMATE.start_main_~aa~0 .cse0) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~a~0 .cse1)) (fp.leq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse1))))))) is different from false [2021-11-07 01:58:10,168 WARN L207 SmtUtils]: Spent 11.17 s on a formula simplification. DAG size of input: 23 DAG size of output: 20 [2021-11-07 01:58:14,506 WARN L838 $PredicateComparison]: unable to prove that (and (not (fp.lt c_ULTIMATE.start_SIN_POS_~x ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (exists ((ULTIMATE.start_main_~aa~0 (_ FloatingPoint 11 53)) (ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~a~0 .cse0)) (fp.lt ULTIMATE.start_main_~aa~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (= c_ULTIMATE.start_SIN_POS_~x (fp.neg ULTIMATE.start_main_~aa~0)) (fp.leq ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)))))) is different from false [2021-11-07 01:58:19,015 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~aa~0 (_ FloatingPoint 11 53)) (ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~a~0 .cse0)) (= c_ULTIMATE.start_SIN_180_~x (fp.neg ULTIMATE.start_main_~aa~0)) (fp.lt ULTIMATE.start_main_~aa~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0))))) (not (fp.lt c_ULTIMATE.start_SIN_180_~x ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) is different from false [2021-11-07 01:59:48,348 WARN L838 $PredicateComparison]: unable to prove that (and (or (and (or (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (not (fp.leq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) ((_ to_fp 11 53) c_currentRoundingMode 2.0))))) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (not (fp.geq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))))) (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32))) (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~a~0 .cse0)) (fp.leq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0))))))) (not (fp.lt c_ULTIMATE.start_SIN_180_~x ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) is different from false [2021-11-07 01:59:48,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:48,366 INFO L93 Difference]: Finished difference Result 130 states and 164 transitions. [2021-11-07 01:59:48,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 01:59:48,367 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 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 21 [2021-11-07 01:59:48,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:48,369 INFO L225 Difference]: With dead ends: 130 [2021-11-07 01:59:48,369 INFO L226 Difference]: Without dead ends: 79 [2021-11-07 01:59:48,371 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 12 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 109.9s TimeCoverageRelationStatistics Valid=61, Invalid=107, Unknown=36, NotChecked=396, Total=600 [2021-11-07 01:59:48,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-07 01:59:48,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 58. [2021-11-07 01:59:48,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.263157894736842) internal successors, (72), 57 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 01:59:48,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2021-11-07 01:59:48,384 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 21 [2021-11-07 01:59:48,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:48,384 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2021-11-07 01:59:48,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 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 01:59:48,385 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2021-11-07 01:59:48,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 01:59:48,386 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:59:48,387 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:59:48,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:59:48,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:48,612 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:59:48,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:59:48,613 INFO L85 PathProgramCache]: Analyzing trace with hash 440195820, now seen corresponding path program 1 times [2021-11-07 01:59:48,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:59:48,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530727684] [2021-11-07 01:59:48,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:48,616 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:59:48,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:59:48,617 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:59:48,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:59:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:52,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:59:52,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:54,201 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 01:59:54,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:00:06,918 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~aa~0_7 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (or (fp.lt v_ULTIMATE.start_main_~aa~0_7 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (not (fp.leq v_ULTIMATE.start_main_~aa~0_7 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0))) (not (fp.geq v_ULTIMATE.start_main_~aa~0_7 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~a~0 .cse0)))))) is different from false [2021-11-07 02:00:08,978 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~aa~0_7 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (or (fp.lt v_ULTIMATE.start_main_~aa~0_7 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (not (fp.leq v_ULTIMATE.start_main_~aa~0_7 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0))) (not (fp.geq v_ULTIMATE.start_main_~aa~0_7 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~a~0 .cse0)))))) is different from true [2021-11-07 02:00:09,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:00:09,033 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:00:09,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530727684] [2021-11-07 02:00:09,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530727684] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:00:09,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:00:09,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-07 02:00:09,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834312360] [2021-11-07 02:00:09,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 02:00:09,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:00:09,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 02:00:09,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=64, Unknown=2, NotChecked=16, Total=110 [2021-11-07 02:00:09,036 INFO L87 Difference]: Start difference. First operand 58 states and 72 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 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 02:00:11,437 WARN L860 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4294966936 32))) (forall ((v_ULTIMATE.start_main_~aa~0_7 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (or (fp.lt v_ULTIMATE.start_main_~aa~0_7 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (not (fp.leq v_ULTIMATE.start_main_~aa~0_7 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0))) (not (fp.geq v_ULTIMATE.start_main_~aa~0_7 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~a~0 .cse0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-07 02:02:00,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:00,132 INFO L93 Difference]: Finished difference Result 120 states and 151 transitions. [2021-11-07 02:02:00,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:02:00,225 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 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 21 [2021-11-07 02:02:00,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:00,226 INFO L225 Difference]: With dead ends: 120 [2021-11-07 02:02:00,226 INFO L226 Difference]: Without dead ends: 64 [2021-11-07 02:02:00,227 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=47, Invalid=90, Unknown=3, NotChecked=42, Total=182 [2021-11-07 02:02:00,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-07 02:02:00,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2021-11-07 02:02:00,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 61 states have internal predecessors, (76), 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 02:02:00,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 76 transitions. [2021-11-07 02:02:00,236 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 76 transitions. Word has length 21 [2021-11-07 02:02:00,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:00,237 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 76 transitions. [2021-11-07 02:02:00,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 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 02:02:00,238 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 76 transitions. [2021-11-07 02:02:00,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 02:02:00,239 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:00,239 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:02:00,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:00,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:00,444 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:02:00,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:00,445 INFO L85 PathProgramCache]: Analyzing trace with hash -609816628, now seen corresponding path program 1 times [2021-11-07 02:02:00,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:00,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293963037] [2021-11-07 02:02:00,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:00,448 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:00,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:00,449 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:00,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:02:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:04,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:02:04,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:04,759 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 02:02:04,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:09,094 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 02:02:09,095 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:09,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293963037] [2021-11-07 02:02:09,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293963037] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:09,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:09,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 02:02:09,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258154817] [2021-11-07 02:02:09,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:02:09,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:09,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:02:09,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=17, Unknown=2, NotChecked=0, Total=30 [2021-11-07 02:02:09,098 INFO L87 Difference]: Start difference. First operand 62 states and 76 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:13,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:13,615 INFO L93 Difference]: Finished difference Result 127 states and 157 transitions. [2021-11-07 02:04:13,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:04:13,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-07 02:04:13,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:13,618 INFO L225 Difference]: With dead ends: 127 [2021-11-07 02:04:13,618 INFO L226 Difference]: Without dead ends: 71 [2021-11-07 02:04:13,619 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=29, Invalid=39, Unknown=4, NotChecked=0, Total=72 [2021-11-07 02:04:13,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-07 02:04:13,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 53. [2021-11-07 02:04:13,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 52 states have internal predecessors, (63), 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 02:04:13,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2021-11-07 02:04:13,627 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 21 [2021-11-07 02:04:13,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:13,628 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2021-11-07 02:04:13,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:13,629 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2021-11-07 02:04:13,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 02:04:13,630 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:13,630 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:04:13,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:04:13,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:13,831 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:04:13,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:13,832 INFO L85 PathProgramCache]: Analyzing trace with hash -141131828, now seen corresponding path program 1 times [2021-11-07 02:04:13,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:13,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713412452] [2021-11-07 02:04:13,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:13,835 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:13,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:13,836 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:13,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9299fdd-ff8f-4d44-99ca-b5cc4829e875/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:04:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:39,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-07 02:04:39,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:46,555 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4294966936 32))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse1)) (exists ((v_skolemized_v_prenex_345_3 (_ BitVec 64))) (let ((.cse2 (select |c_#memory_int| |c_~#T~0.base|))) (and (= ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)) (fp ((_ extract 63 63) v_skolemized_v_prenex_345_3) ((_ extract 62 52) v_skolemized_v_prenex_345_3) ((_ extract 51 0) v_skolemized_v_prenex_345_3))) (= ((_ extract 63 32) v_skolemized_v_prenex_345_3) (select .cse2 (bvadd |c_~#T~0.offset| (_ bv2892 32)))) (= (select .cse2 (bvadd |c_~#T~0.offset| (_ bv2888 32))) ((_ extract 31 0) v_skolemized_v_prenex_345_3))))) (fp.geq c_ULTIMATE.start_main_~aa~0 (fp.div c_currentRoundingMode .cse0 .cse1)) (exists ((v_skolemized_v_prenex_259_3 (_ BitVec 64))) (let ((.cse3 (select |c_#memory_int| |c_~#T~0.base|))) (and (= (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 109077540233.0 6250000000000.0))) (fp ((_ extract 63 63) v_skolemized_v_prenex_259_3) ((_ extract 62 52) v_skolemized_v_prenex_259_3) ((_ extract 51 0) v_skolemized_v_prenex_259_3))) (= (select .cse3 (bvadd |c_~#T~0.offset| (_ bv2872 32))) ((_ extract 31 0) v_skolemized_v_prenex_259_3)) (= ((_ extract 63 32) v_skolemized_v_prenex_259_3) (select .cse3 (bvadd (_ bv2876 32) |c_~#T~0.offset|)))))) (= |c_ULTIMATE.start_SIN_0_180_#res| (let ((.cse5 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.neg c_ULTIMATE.start_main_~aa~0)))) (let ((.cse6 ((_ fp.to_sbv 32) roundTowardZero .cse5))) (let ((.cse8 (select |c_#memory_int| |c_~#T~0.base|)) (.cse9 (bvmul .cse6 (_ bv8 32)))) (let ((.cse4 (let ((.cse10 (concat (select .cse8 (bvadd .cse9 (_ bv4 32) |c_~#T~0.offset|)) (select .cse8 (bvadd .cse9 |c_~#T~0.offset|))))) (fp ((_ extract 63 63) .cse10) ((_ extract 62 52) .cse10) ((_ extract 51 0) .cse10))))) (fp.add c_currentRoundingMode .cse4 (fp.mul c_currentRoundingMode (fp.sub c_currentRoundingMode .cse5 ((_ to_fp 11 53) c_currentRoundingMode .cse6)) (fp.sub c_currentRoundingMode (let ((.cse7 (concat (select .cse8 (bvadd .cse9 |c_~#T~0.offset| (_ bv12 32))) (select .cse8 (bvadd .cse9 |c_~#T~0.offset| (_ bv8 32)))))) (fp ((_ extract 63 63) .cse7) ((_ extract 62 52) .cse7) ((_ extract 51 0) .cse7))) .cse4)))))))) (= |c_~#T~0.offset| (_ bv0 32)) (exists ((v_skolemized_v_prenex_54_3 (_ BitVec 64))) (let ((.cse11 (select |c_#memory_int| |c_~#T~0.base|))) (and (= (select .cse11 (bvadd (_ bv2884 32) |c_~#T~0.offset|)) ((_ extract 63 32) v_skolemized_v_prenex_54_3)) (= ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)) (fp ((_ extract 63 63) v_skolemized_v_prenex_54_3) ((_ extract 62 52) v_skolemized_v_prenex_54_3) ((_ extract 51 0) v_skolemized_v_prenex_54_3))) (= (select .cse11 (bvadd |c_~#T~0.offset| (_ bv2880 32))) ((_ extract 31 0) v_skolemized_v_prenex_54_3))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false