./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 eb692b52 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-?-eb692b5 [2022-07-19 13:32:33,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:32:33,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:32:33,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:32:33,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:32:33,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:32:33,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:32:33,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:32:33,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:32:33,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:32:33,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:32:33,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:32:33,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:32:33,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:32:33,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:32:33,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:32:33,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:32:33,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:32:33,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:32:33,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:32:33,649 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:32:33,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:32:33,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:32:33,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:32:33,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:32:33,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:32:33,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:32:33,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:32:33,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:32:33,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:32:33,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:32:33,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:32:33,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:32:33,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:32:33,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:32:33,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:32:33,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:32:33,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:32:33,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:32:33,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:32:33,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:32:33,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:32:33,667 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 13:32:33,691 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:32:33,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:32:33,691 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:32:33,692 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:32:33,692 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:32:33,692 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:32:33,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:32:33,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:32:33,693 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:32:33,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:32:33,694 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:32:33,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 13:32:33,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:32:33,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:32:33,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:32:33,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:32:33,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:32:33,695 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:32:33,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:32:33,695 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:32:33,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:32:33,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:32:33,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:32:33,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:32:33,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:32:33,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:32:33,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:32:33,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:32:33,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 13:32:33,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 13:32:33,697 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:32:33,697 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:32:33,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:32:33,698 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb [2022-07-19 13:32:33,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:32:33,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:32:33,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:32:33,894 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:32:33,895 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:32:33,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cos_polynomial.c [2022-07-19 13:32:33,948 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d97ca9c/43ef340a105649719751c6aa3fec5452/FLAG0ff8f181d [2022-07-19 13:32:34,308 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:32:34,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c [2022-07-19 13:32:34,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d97ca9c/43ef340a105649719751c6aa3fec5452/FLAG0ff8f181d [2022-07-19 13:32:34,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d97ca9c/43ef340a105649719751c6aa3fec5452 [2022-07-19 13:32:34,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:32:34,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:32:34,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:32:34,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:32:34,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:32:34,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:32:34" (1/1) ... [2022-07-19 13:32:34,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a4d18b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:34, skipping insertion in model container [2022-07-19 13:32:34,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:32:34" (1/1) ... [2022-07-19 13:32:34,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:32:34,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:32:34,458 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] [2022-07-19 13:32:34,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:32:34,487 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:32:34,501 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] [2022-07-19 13:32:34,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:32:34,521 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:32:34,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:34 WrapperNode [2022-07-19 13:32:34,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:32:34,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:32:34,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:32:34,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:32:34,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:34" (1/1) ... [2022-07-19 13:32:34,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:34" (1/1) ... [2022-07-19 13:32:34,553 INFO L137 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-07-19 13:32:34,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:32:34,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:32:34,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:32:34,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:32:34,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:34" (1/1) ... [2022-07-19 13:32:34,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:34" (1/1) ... [2022-07-19 13:32:34,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:34" (1/1) ... [2022-07-19 13:32:34,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:34" (1/1) ... [2022-07-19 13:32:34,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:34" (1/1) ... [2022-07-19 13:32:34,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:34" (1/1) ... [2022-07-19 13:32:34,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:34" (1/1) ... [2022-07-19 13:32:34,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:32:34,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:32:34,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:32:34,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:32:34,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:34" (1/1) ... [2022-07-19 13:32:34,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:32:34,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:32:34,616 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) [2022-07-19 13:32:34,622 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 [2022-07-19 13:32:34,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:32:34,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 13:32:34,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:32:34,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:32:34,686 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:32:34,687 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:32:34,791 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:32:34,795 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:32:34,795 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 13:32:34,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:32:34 BoogieIcfgContainer [2022-07-19 13:32:34,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:32:34,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:32:34,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:32:34,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:32:34,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:32:34" (1/3) ... [2022-07-19 13:32:34,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496b76ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:32:34, skipping insertion in model container [2022-07-19 13:32:34,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:34" (2/3) ... [2022-07-19 13:32:34,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496b76ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:32:34, skipping insertion in model container [2022-07-19 13:32:34,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:32:34" (3/3) ... [2022-07-19 13:32:34,802 INFO L111 eAbstractionObserver]: Analyzing ICFG cos_polynomial.c [2022-07-19 13:32:34,811 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:32:34,812 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:32:34,844 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:32:34,853 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@32c76bc9, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@a66db7a [2022-07-19 13:32:34,853 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:32:34,856 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) [2022-07-19 13:32:34,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-19 13:32:34,862 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:32:34,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:32:34,864 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:32:34,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:32:34,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1236255304, now seen corresponding path program 1 times [2022-07-19 13:32:34,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:32:34,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119048567] [2022-07-19 13:32:34,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:32:34,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:32:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:32:34,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:32:34,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:32:34,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119048567] [2022-07-19 13:32:34,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119048567] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:32:34,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:32:34,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 13:32:34,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027747797] [2022-07-19 13:32:34,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:32:34,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 13:32:34,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:32:34,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 13:32:34,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:32:34,983 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) [2022-07-19 13:32:34,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:32:34,992 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2022-07-19 13:32:34,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 13:32:34,994 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 [2022-07-19 13:32:34,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:32:34,999 INFO L225 Difference]: With dead ends: 31 [2022-07-19 13:32:34,999 INFO L226 Difference]: Without dead ends: 13 [2022-07-19 13:32:35,001 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 [2022-07-19 13:32:35,003 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 [2022-07-19 13:32:35,004 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] [2022-07-19 13:32:35,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-07-19 13:32:35,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-07-19 13:32:35,035 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) [2022-07-19 13:32:35,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-07-19 13:32:35,037 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2022-07-19 13:32:35,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:32:35,037 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-07-19 13:32:35,038 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) [2022-07-19 13:32:35,038 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-07-19 13:32:35,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-19 13:32:35,038 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:32:35,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:32:35,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 13:32:35,039 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:32:35,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:32:35,041 INFO L85 PathProgramCache]: Analyzing trace with hash -2045601930, now seen corresponding path program 1 times [2022-07-19 13:32:35,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:32:35,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49953319] [2022-07-19 13:32:35,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:32:35,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:32:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:32:35,078 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 13:32:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:32:35,116 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 13:32:35,117 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 13:32:35,118 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 13:32:35,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 13:32:35,126 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 13:32:35,130 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 13:32:35,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 01:32:35 BoogieIcfgContainer [2022-07-19 13:32:35,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 13:32:35,159 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 13:32:35,160 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 13:32:35,160 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 13:32:35,161 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:32:34" (3/4) ... [2022-07-19 13:32:35,163 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 13:32:35,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 13:32:35,165 INFO L158 Benchmark]: Toolchain (without parser) took 839.69ms. Allocated memory is still 100.7MB. Free memory was 61.2MB in the beginning and 39.4MB in the end (delta: 21.7MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2022-07-19 13:32:35,165 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 100.7MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:32:35,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.04ms. Allocated memory is still 100.7MB. Free memory was 61.0MB in the beginning and 75.8MB in the end (delta: -14.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-19 13:32:35,168 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.96ms. Allocated memory is still 100.7MB. Free memory was 75.8MB in the beginning and 74.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:32:35,169 INFO L158 Benchmark]: Boogie Preprocessor took 32.38ms. Allocated memory is still 100.7MB. Free memory was 74.1MB in the beginning and 73.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:32:35,170 INFO L158 Benchmark]: RCFGBuilder took 208.18ms. Allocated memory is still 100.7MB. Free memory was 73.0MB in the beginning and 63.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:32:35,171 INFO L158 Benchmark]: TraceAbstraction took 360.34ms. Allocated memory is still 100.7MB. Free memory was 63.1MB in the beginning and 40.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-19 13:32:35,171 INFO L158 Benchmark]: Witness Printer took 4.80ms. Allocated memory is still 100.7MB. Free memory was 40.0MB in the beginning and 39.4MB in the end (delta: 562.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:32:35,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 100.7MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.04ms. Allocated memory is still 100.7MB. Free memory was 61.0MB in the beginning and 75.8MB in the end (delta: -14.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.96ms. Allocated memory is still 100.7MB. Free memory was 75.8MB in the beginning and 74.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.38ms. Allocated memory is still 100.7MB. Free memory was 74.1MB in the beginning and 73.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 208.18ms. Allocated memory is still 100.7MB. Free memory was 73.0MB in the beginning and 63.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 360.34ms. Allocated memory is still 100.7MB. Free memory was 63.1MB in the beginning and 40.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 4.80ms. Allocated memory is still 100.7MB. Free memory was 40.0MB in the beginning and 39.4MB in the end (delta: 562.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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: 0.3s, 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, 0.0s 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 [2022-07-19 13:32:35,209 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-?-eb692b5 [2022-07-19 13:32:36,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:32:36,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:32:36,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:32:36,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:32:36,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:32:36,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:32:36,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:32:36,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:32:36,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:32:36,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:32:36,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:32:36,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:32:36,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:32:36,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:32:36,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:32:36,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:32:36,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:32:36,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:32:36,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:32:36,921 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:32:36,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:32:36,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:32:36,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:32:36,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:32:36,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:32:36,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:32:36,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:32:36,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:32:36,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:32:36,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:32:36,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:32:36,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:32:36,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:32:36,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:32:36,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:32:36,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:32:36,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:32:36,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:32:36,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:32:36,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:32:36,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:32:36,942 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 13:32:36,967 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:32:36,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:32:36,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:32:36,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:32:36,968 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:32:36,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:32:36,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:32:36,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:32:36,969 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:32:36,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:32:36,970 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:32:36,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:32:36,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:32:36,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:32:36,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:32:36,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:32:36,977 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 13:32:36,978 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 13:32:36,978 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 13:32:36,978 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:32:36,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:32:36,978 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:32:36,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:32:36,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:32:36,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:32:36,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:32:36,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:32:36,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:32:36,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:32:36,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:32:36,980 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 13:32:36,980 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 13:32:36,980 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:32:36,980 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:32:36,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:32:36,981 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 13:32:36,981 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb [2022-07-19 13:32:37,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:32:37,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:32:37,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:32:37,268 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:32:37,269 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:32:37,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cos_polynomial.c [2022-07-19 13:32:37,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d84159d3f/a9c38b077ad04c5b8a9f1ccae616f23d/FLAG2dd39a75e [2022-07-19 13:32:37,687 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:32:37,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c [2022-07-19 13:32:37,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d84159d3f/a9c38b077ad04c5b8a9f1ccae616f23d/FLAG2dd39a75e [2022-07-19 13:32:37,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d84159d3f/a9c38b077ad04c5b8a9f1ccae616f23d [2022-07-19 13:32:37,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:32:37,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:32:37,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:32:37,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:32:37,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:32:37,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:32:37" (1/1) ... [2022-07-19 13:32:37,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a176a7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:37, skipping insertion in model container [2022-07-19 13:32:37,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:32:37" (1/1) ... [2022-07-19 13:32:37,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:32:37,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:32:37,869 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] [2022-07-19 13:32:37,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:32:37,924 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:32:37,938 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] [2022-07-19 13:32:37,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:32:37,965 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:32:37,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:37 WrapperNode [2022-07-19 13:32:37,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:32:37,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:32:37,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:32:37,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:32:37,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:37" (1/1) ... [2022-07-19 13:32:37,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:37" (1/1) ... [2022-07-19 13:32:38,006 INFO L137 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2022-07-19 13:32:38,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:32:38,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:32:38,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:32:38,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:32:38,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:37" (1/1) ... [2022-07-19 13:32:38,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:37" (1/1) ... [2022-07-19 13:32:38,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:37" (1/1) ... [2022-07-19 13:32:38,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:37" (1/1) ... [2022-07-19 13:32:38,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:37" (1/1) ... [2022-07-19 13:32:38,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:37" (1/1) ... [2022-07-19 13:32:38,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:37" (1/1) ... [2022-07-19 13:32:38,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:32:38,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:32:38,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:32:38,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:32:38,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:37" (1/1) ... [2022-07-19 13:32:38,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:32:38,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:32:38,071 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) [2022-07-19 13:32:38,079 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 [2022-07-19 13:32:38,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:32:38,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 13:32:38,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:32:38,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:32:38,157 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:32:38,158 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:32:44,294 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:32:44,298 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:32:44,298 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 13:32:44,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:32:44 BoogieIcfgContainer [2022-07-19 13:32:44,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:32:44,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:32:44,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:32:44,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:32:44,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:32:37" (1/3) ... [2022-07-19 13:32:44,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d847ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:32:44, skipping insertion in model container [2022-07-19 13:32:44,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:37" (2/3) ... [2022-07-19 13:32:44,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d847ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:32:44, skipping insertion in model container [2022-07-19 13:32:44,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:32:44" (3/3) ... [2022-07-19 13:32:44,305 INFO L111 eAbstractionObserver]: Analyzing ICFG cos_polynomial.c [2022-07-19 13:32:44,322 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:32:44,322 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:32:44,360 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:32:44,365 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@70d273c1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@57f50b10 [2022-07-19 13:32:44,365 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:32:44,368 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) [2022-07-19 13:32:44,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-19 13:32:44,372 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:32:44,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:32:44,373 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:32:44,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:32:44,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1236255304, now seen corresponding path program 1 times [2022-07-19 13:32:44,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:32:44,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895331829] [2022-07-19 13:32:44,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:32:44,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:32:44,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:32:44,391 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) [2022-07-19 13:32:44,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 13:32:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:32:46,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 13:32:46,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:32:46,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:32:46,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:32:46,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:32:46,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [895331829] [2022-07-19 13:32:46,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [895331829] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:32:46,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:32:46,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 13:32:46,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263645818] [2022-07-19 13:32:46,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:32:46,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 13:32:46,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:32:46,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 13:32:46,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:32:46,365 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) [2022-07-19 13:32:46,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:32:46,378 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2022-07-19 13:32:46,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 13:32:46,380 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 [2022-07-19 13:32:46,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:32:46,385 INFO L225 Difference]: With dead ends: 31 [2022-07-19 13:32:46,385 INFO L226 Difference]: Without dead ends: 13 [2022-07-19 13:32:46,387 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 [2022-07-19 13:32:46,391 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 [2022-07-19 13:32:46,392 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] [2022-07-19 13:32:46,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-07-19 13:32:46,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-07-19 13:32:46,413 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) [2022-07-19 13:32:46,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-07-19 13:32:46,414 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2022-07-19 13:32:46,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:32:46,416 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-07-19 13:32:46,416 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) [2022-07-19 13:32:46,416 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-07-19 13:32:46,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-19 13:32:46,417 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:32:46,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:32:46,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-19 13:32:46,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:32:46,644 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:32:46,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:32:46,644 INFO L85 PathProgramCache]: Analyzing trace with hash -2045601930, now seen corresponding path program 1 times [2022-07-19 13:32:46,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:32:46,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556118936] [2022-07-19 13:32:46,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:32:46,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:32:46,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:32:46,649 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) [2022-07-19 13:32:46,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process