./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/cos_polynomial.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/cos_polynomial.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 01:08:17,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:08:17,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:08:17,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:08:17,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:08:17,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:08:17,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:08:17,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:08:17,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:08:17,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:08:17,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:08:17,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:08:17,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:08:17,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:08:17,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:08:17,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:08:17,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:08:17,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:08:17,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:08:17,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:08:17,475 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:08:17,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:08:17,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:08:17,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:08:17,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:08:17,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:08:17,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:08:17,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:08:17,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:08:17,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:08:17,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:08:17,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:08:17,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:08:17,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:08:17,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:08:17,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:08:17,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:08:17,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:08:17,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:08:17,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:08:17,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:08:17,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:08:17,496 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 01:08:17,531 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:08:17,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:08:17,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:08:17,533 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:08:17,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:08:17,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:08:17,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:08:17,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:08:17,534 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:08:17,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:08:17,536 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:08:17,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 01:08:17,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:08:17,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:08:17,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:08:17,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:08:17,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:08:17,545 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:08:17,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:08:17,545 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:08:17,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:08:17,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:08:17,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:08:17,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:08:17,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:08:17,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:08:17,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:08:17,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:08:17,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 01:08:17,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 01:08:17,547 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:08:17,548 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:08:17,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:08:17,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb [2022-07-21 01:08:17,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:08:17,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:08:17,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:08:17,854 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:08:17,855 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:08:17,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cos_polynomial.c [2022-07-21 01:08:17,917 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62ce10cde/b71c6ff29704424d9818ac4d9b302751/FLAGe8efbf7f8 [2022-07-21 01:08:18,374 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:08:18,375 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c [2022-07-21 01:08:18,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62ce10cde/b71c6ff29704424d9818ac4d9b302751/FLAGe8efbf7f8 [2022-07-21 01:08:18,406 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62ce10cde/b71c6ff29704424d9818ac4d9b302751 [2022-07-21 01:08:18,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:08:18,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:08:18,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:08:18,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:08:18,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:08:18,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:08:18" (1/1) ... [2022-07-21 01:08:18,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39802a04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:18, skipping insertion in model container [2022-07-21 01:08:18,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:08:18" (1/1) ... [2022-07-21 01:08:18,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:08:18,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:08:18,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2022-07-21 01:08:18,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:08:18,625 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:08:18,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2022-07-21 01:08:18,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:08:18,688 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:08:18,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:18 WrapperNode [2022-07-21 01:08:18,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:08:18,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:08:18,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:08:18,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:08:18,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:18" (1/1) ... [2022-07-21 01:08:18,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:18" (1/1) ... [2022-07-21 01:08:18,722 INFO L137 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-07-21 01:08:18,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:08:18,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:08:18,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:08:18,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:08:18,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:18" (1/1) ... [2022-07-21 01:08:18,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:18" (1/1) ... [2022-07-21 01:08:18,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:18" (1/1) ... [2022-07-21 01:08:18,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:18" (1/1) ... [2022-07-21 01:08:18,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:18" (1/1) ... [2022-07-21 01:08:18,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:18" (1/1) ... [2022-07-21 01:08:18,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:18" (1/1) ... [2022-07-21 01:08:18,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:08:18,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:08:18,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:08:18,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:08:18,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:18" (1/1) ... [2022-07-21 01:08:18,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:08:18,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:08:18,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 01:08:18,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 01:08:18,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:08:18,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 01:08:18,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:08:18,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:08:18,883 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:08:18,885 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:08:18,977 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:08:18,982 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:08:18,983 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 01:08:18,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:08:18 BoogieIcfgContainer [2022-07-21 01:08:18,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:08:18,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:08:18,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:08:18,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:08:18,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:08:18" (1/3) ... [2022-07-21 01:08:18,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6991ee5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:08:18, skipping insertion in model container [2022-07-21 01:08:18,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:18" (2/3) ... [2022-07-21 01:08:18,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6991ee5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:08:18, skipping insertion in model container [2022-07-21 01:08:18,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:08:18" (3/3) ... [2022-07-21 01:08:18,991 INFO L111 eAbstractionObserver]: Analyzing ICFG cos_polynomial.c [2022-07-21 01:08:19,010 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:08:19,011 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:08:19,050 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:08:19,057 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@f8d6da1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3e7cd92d [2022-07-21 01:08:19,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:08:19,062 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 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) [2022-07-21 01:08:19,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-21 01:08:19,070 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:08:19,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:08:19,071 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:08:19,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:08:19,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1236255304, now seen corresponding path program 1 times [2022-07-21 01:08:19,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:08:19,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528538641] [2022-07-21 01:08:19,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:08:19,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:08:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:08:19,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:08:19,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 01:08:19,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528538641] [2022-07-21 01:08:19,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528538641] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:08:19,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:08:19,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 01:08:19,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574564024] [2022-07-21 01:08:19,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:08:19,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 01:08:19,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 01:08:19,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 01:08:19,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:08:19,272 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:08:19,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:08:19,285 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2022-07-21 01:08:19,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 01:08:19,287 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-21 01:08:19,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:08:19,293 INFO L225 Difference]: With dead ends: 31 [2022-07-21 01:08:19,294 INFO L226 Difference]: Without dead ends: 13 [2022-07-21 01:08:19,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:08:19,300 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 01:08:19,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 01:08:19,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-07-21 01:08:19,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-07-21 01:08:19,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:08:19,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-07-21 01:08:19,326 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2022-07-21 01:08:19,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:08:19,327 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-07-21 01:08:19,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:08:19,328 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-07-21 01:08:19,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-21 01:08:19,328 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:08:19,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:08:19,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 01:08:19,329 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:08:19,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:08:19,330 INFO L85 PathProgramCache]: Analyzing trace with hash -2045601930, now seen corresponding path program 1 times [2022-07-21 01:08:19,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:08:19,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617987986] [2022-07-21 01:08:19,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:08:19,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:08:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:08:19,375 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 01:08:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:08:19,426 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 01:08:19,427 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 01:08:19,428 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 01:08:19,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 01:08:19,434 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 01:08:19,438 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 01:08:19,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:08:19 BoogieIcfgContainer [2022-07-21 01:08:19,473 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 01:08:19,473 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 01:08:19,474 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 01:08:19,474 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 01:08:19,475 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:08:18" (3/4) ... [2022-07-21 01:08:19,477 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 01:08:19,478 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 01:08:19,480 INFO L158 Benchmark]: Toolchain (without parser) took 1068.30ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 33.2MB in the beginning and 46.4MB in the end (delta: -13.2MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2022-07-21 01:08:19,480 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 54.5MB. Free memory is still 36.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:08:19,481 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.45ms. Allocated memory is still 54.5MB. Free memory was 32.9MB in the beginning and 37.3MB in the end (delta: -4.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 01:08:19,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.87ms. Allocated memory is still 54.5MB. Free memory was 37.3MB in the beginning and 35.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:08:19,484 INFO L158 Benchmark]: Boogie Preprocessor took 35.28ms. Allocated memory is still 54.5MB. Free memory was 35.7MB in the beginning and 34.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:08:19,486 INFO L158 Benchmark]: RCFGBuilder took 224.67ms. Allocated memory is still 54.5MB. Free memory was 34.6MB in the beginning and 25.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-21 01:08:19,487 INFO L158 Benchmark]: TraceAbstraction took 487.25ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 25.0MB in the beginning and 46.9MB in the end (delta: -21.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:08:19,487 INFO L158 Benchmark]: Witness Printer took 4.83ms. Allocated memory is still 69.2MB. Free memory was 46.9MB in the beginning and 46.4MB in the end (delta: 409.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:08:19,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 54.5MB. Free memory is still 36.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.45ms. Allocated memory is still 54.5MB. Free memory was 32.9MB in the beginning and 37.3MB in the end (delta: -4.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.87ms. Allocated memory is still 54.5MB. Free memory was 37.3MB in the beginning and 35.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.28ms. Allocated memory is still 54.5MB. Free memory was 35.7MB in the beginning and 34.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 224.67ms. Allocated memory is still 54.5MB. Free memory was 34.6MB in the beginning and 25.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 487.25ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 25.0MB in the beginning and 46.9MB in the end (delta: -21.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.83ms. Allocated memory is still 69.2MB. Free memory was 46.9MB in the beginning and 46.4MB in the end (delta: 409.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 56, overapproximation of someUnaryDOUBLEoperation at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 32. Possible FailurePath: [L16] double C1 = 4.16666666666666019037e-02; [L17] double C2 = -1.38888888888741095749e-03; [L18] double C3 = 2.48015872894767294178e-05; [L19] double C4 = -2.75573143513906633035e-07; [L20] double C5 = 2.08757232129817482790e-09; [L21] double C6 = -1.13596475577881948265e-11; VAL [C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L49] double a, r; [L51] a = __VERIFIER_nondet_double() [L52] CALL assume_abort_if_not(a >= -0.5 && a <= 0.75) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000, cond=1] [L52] RET assume_abort_if_not(a >= -0.5 && a <= 0.75) [L54] CALL, EXPR mcos(a) [L25] double a, hz, z, r, qx, zr; [L26] z = x*x VAL [\old(x)=50, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000, x=50] [L27] COND TRUE x < 0. [L27] x = -x VAL [\old(x)=50, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L28] hz = 0.5 * z [L29] r = z*(C1+z*(C2+z*(C3+z*(C4+z*(C5+z*C6))))) [L30] zr = z*r VAL [\old(x)=50, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L31] COND TRUE x < 0.3 [L32] return 1.-(hz-zr); VAL [\old(x)=50, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L54] RET, EXPR mcos(a) [L54] r = mcos(a) [L56] CALL __VERIFIER_assert(r >= 0. && r <= 1.1) [L14] COND TRUE !(cond) VAL [\old(cond)=0, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000, cond=0] [L14] reach_error() VAL [\old(cond)=0, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 19 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-21 01:08:19,531 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/cos_polynomial.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 01:08:21,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:08:21,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:08:21,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:08:21,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:08:21,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:08:21,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:08:21,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:08:21,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:08:21,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:08:21,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:08:21,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:08:21,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:08:21,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:08:21,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:08:21,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:08:21,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:08:21,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:08:21,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:08:21,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:08:21,460 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:08:21,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:08:21,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:08:21,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:08:21,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:08:21,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:08:21,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:08:21,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:08:21,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:08:21,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:08:21,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:08:21,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:08:21,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:08:21,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:08:21,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:08:21,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:08:21,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:08:21,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:08:21,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:08:21,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:08:21,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:08:21,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:08:21,492 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-21 01:08:21,534 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:08:21,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:08:21,535 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:08:21,535 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:08:21,536 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:08:21,536 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:08:21,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:08:21,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:08:21,537 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:08:21,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:08:21,538 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:08:21,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:08:21,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:08:21,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:08:21,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:08:21,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:08:21,539 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 01:08:21,539 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 01:08:21,540 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 01:08:21,540 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:08:21,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:08:21,540 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:08:21,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:08:21,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:08:21,541 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:08:21,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:08:21,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:08:21,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:08:21,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:08:21,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:08:21,542 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 01:08:21,542 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 01:08:21,542 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:08:21,542 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:08:21,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:08:21,543 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 01:08:21,543 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb [2022-07-21 01:08:21,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:08:21,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:08:21,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:08:21,920 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:08:21,921 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:08:21,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cos_polynomial.c [2022-07-21 01:08:21,977 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5fd60c7/4474181d075a4647bc24ec59447d0af3/FLAGa60915405 [2022-07-21 01:08:22,367 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:08:22,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c [2022-07-21 01:08:22,377 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5fd60c7/4474181d075a4647bc24ec59447d0af3/FLAGa60915405 [2022-07-21 01:08:22,394 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5fd60c7/4474181d075a4647bc24ec59447d0af3 [2022-07-21 01:08:22,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:08:22,398 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:08:22,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:08:22,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:08:22,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:08:22,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:08:22" (1/1) ... [2022-07-21 01:08:22,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3368b8df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:22, skipping insertion in model container [2022-07-21 01:08:22,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:08:22" (1/1) ... [2022-07-21 01:08:22,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:08:22,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:08:22,573 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2022-07-21 01:08:22,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:08:22,662 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:08:22,687 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2022-07-21 01:08:22,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:08:22,721 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:08:22,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:22 WrapperNode [2022-07-21 01:08:22,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:08:22,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:08:22,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:08:22,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:08:22,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:22" (1/1) ... [2022-07-21 01:08:22,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:22" (1/1) ... [2022-07-21 01:08:22,769 INFO L137 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2022-07-21 01:08:22,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:08:22,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:08:22,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:08:22,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:08:22,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:22" (1/1) ... [2022-07-21 01:08:22,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:22" (1/1) ... [2022-07-21 01:08:22,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:22" (1/1) ... [2022-07-21 01:08:22,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:22" (1/1) ... [2022-07-21 01:08:22,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:22" (1/1) ... [2022-07-21 01:08:22,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:22" (1/1) ... [2022-07-21 01:08:22,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:22" (1/1) ... [2022-07-21 01:08:22,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:08:22,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:08:22,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:08:22,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:08:22,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:22" (1/1) ... [2022-07-21 01:08:22,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:08:22,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:08:22,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 01:08:22,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 01:08:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:08:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 01:08:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:08:22,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:08:22,967 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:08:22,968 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:08:29,673 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:08:29,677 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:08:29,677 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 01:08:29,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:08:29 BoogieIcfgContainer [2022-07-21 01:08:29,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:08:29,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:08:29,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:08:29,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:08:29,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:08:22" (1/3) ... [2022-07-21 01:08:29,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc7a953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:08:29, skipping insertion in model container [2022-07-21 01:08:29,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:08:22" (2/3) ... [2022-07-21 01:08:29,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc7a953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:08:29, skipping insertion in model container [2022-07-21 01:08:29,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:08:29" (3/3) ... [2022-07-21 01:08:29,687 INFO L111 eAbstractionObserver]: Analyzing ICFG cos_polynomial.c [2022-07-21 01:08:29,699 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:08:29,700 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:08:29,754 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:08:29,761 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@64fa69e7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@feba0f2 [2022-07-21 01:08:29,761 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:08:29,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 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) [2022-07-21 01:08:29,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-21 01:08:29,772 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:08:29,772 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:08:29,773 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:08:29,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:08:29,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1236255304, now seen corresponding path program 1 times [2022-07-21 01:08:29,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:08:29,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91221821] [2022-07-21 01:08:29,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:08:29,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:08:29,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:08:29,807 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 01:08:29,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 01:08:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:08:31,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 01:08:31,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:08:31,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:08:31,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:08:31,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:08:31,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91221821] [2022-07-21 01:08:31,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91221821] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:08:31,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:08:31,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 01:08:31,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635023936] [2022-07-21 01:08:31,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:08:31,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 01:08:31,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:08:31,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 01:08:31,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:08:31,847 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:08:31,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:08:31,861 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2022-07-21 01:08:31,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 01:08:31,863 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-21 01:08:31,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:08:31,869 INFO L225 Difference]: With dead ends: 31 [2022-07-21 01:08:31,869 INFO L226 Difference]: Without dead ends: 13 [2022-07-21 01:08:31,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:08:31,878 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 01:08:31,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 01:08:31,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-07-21 01:08:31,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-07-21 01:08:31,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:08:31,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-07-21 01:08:31,900 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2022-07-21 01:08:31,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:08:31,900 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-07-21 01:08:31,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:08:31,901 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-07-21 01:08:31,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-21 01:08:31,901 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:08:31,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:08:31,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 01:08:32,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:08:32,105 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:08:32,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:08:32,105 INFO L85 PathProgramCache]: Analyzing trace with hash -2045601930, now seen corresponding path program 1 times [2022-07-21 01:08:32,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:08:32,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490606644] [2022-07-21 01:08:32,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:08:32,106 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:08:32,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:08:32,108 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 01:08:32,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process