./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-17 06:16:04,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 06:16:04,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 06:16:04,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 06:16:04,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 06:16:04,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 06:16:04,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 06:16:04,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 06:16:04,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 06:16:04,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 06:16:04,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 06:16:04,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 06:16:04,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 06:16:04,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 06:16:04,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 06:16:04,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 06:16:04,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 06:16:04,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 06:16:04,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 06:16:04,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 06:16:04,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 06:16:04,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 06:16:04,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 06:16:04,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 06:16:04,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 06:16:04,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 06:16:04,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 06:16:04,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 06:16:04,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 06:16:04,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 06:16:04,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 06:16:04,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 06:16:04,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 06:16:04,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 06:16:04,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 06:16:04,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 06:16:04,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 06:16:04,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 06:16:04,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 06:16:04,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 06:16:04,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 06:16:04,115 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 06:16:04,142 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 06:16:04,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 06:16:04,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 06:16:04,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 06:16:04,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 06:16:04,144 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 06:16:04,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 06:16:04,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 06:16:04,144 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 06:16:04,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 06:16:04,145 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 06:16:04,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 06:16:04,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 06:16:04,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 06:16:04,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 06:16:04,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 06:16:04,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 06:16:04,146 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 06:16:04,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 06:16:04,146 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 06:16:04,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 06:16:04,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 06:16:04,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 06:16:04,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 06:16:04,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 06:16:04,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 06:16:04,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 06:16:04,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 06:16:04,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 06:16:04,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 06:16:04,148 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 06:16:04,148 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 06:16:04,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 06:16:04,149 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 06:16:04,149 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb [2021-12-17 06:16:04,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 06:16:04,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 06:16:04,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 06:16:04,393 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 06:16:04,393 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 06:16:04,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cos_polynomial.c [2021-12-17 06:16:04,446 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fb63fe40/593faa50dcba49bd85b6f90afe4e6dc0/FLAGe48862d39 [2021-12-17 06:16:04,775 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 06:16:04,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c [2021-12-17 06:16:04,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fb63fe40/593faa50dcba49bd85b6f90afe4e6dc0/FLAGe48862d39 [2021-12-17 06:16:05,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fb63fe40/593faa50dcba49bd85b6f90afe4e6dc0 [2021-12-17 06:16:05,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 06:16:05,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 06:16:05,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 06:16:05,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 06:16:05,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 06:16:05,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 06:16:05" (1/1) ... [2021-12-17 06:16:05,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@499334e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:05, skipping insertion in model container [2021-12-17 06:16:05,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 06:16:05" (1/1) ... [2021-12-17 06:16:05,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 06:16:05,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 06:16:05,312 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] [2021-12-17 06:16:05,335 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 06:16:05,342 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 06:16:05,352 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] [2021-12-17 06:16:05,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 06:16:05,370 INFO L208 MainTranslator]: Completed translation [2021-12-17 06:16:05,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:05 WrapperNode [2021-12-17 06:16:05,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 06:16:05,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 06:16:05,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 06:16:05,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 06:16:05,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:05" (1/1) ... [2021-12-17 06:16:05,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:05" (1/1) ... [2021-12-17 06:16:05,398 INFO L137 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2021-12-17 06:16:05,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 06:16:05,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 06:16:05,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 06:16:05,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 06:16:05,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:05" (1/1) ... [2021-12-17 06:16:05,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:05" (1/1) ... [2021-12-17 06:16:05,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:05" (1/1) ... [2021-12-17 06:16:05,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:05" (1/1) ... [2021-12-17 06:16:05,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:05" (1/1) ... [2021-12-17 06:16:05,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:05" (1/1) ... [2021-12-17 06:16:05,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:05" (1/1) ... [2021-12-17 06:16:05,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 06:16:05,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 06:16:05,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 06:16:05,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 06:16:05,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:05" (1/1) ... [2021-12-17 06:16:05,423 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 06:16:05,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 06:16:05,443 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) [2021-12-17 06:16:05,466 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 [2021-12-17 06:16:05,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 06:16:05,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 06:16:05,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 06:16:05,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 06:16:05,555 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 06:16:05,556 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 06:16:05,693 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 06:16:05,698 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 06:16:05,699 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 06:16:05,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:16:05 BoogieIcfgContainer [2021-12-17 06:16:05,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 06:16:05,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 06:16:05,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 06:16:05,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 06:16:05,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 06:16:05" (1/3) ... [2021-12-17 06:16:05,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261d3836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 06:16:05, skipping insertion in model container [2021-12-17 06:16:05,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:05" (2/3) ... [2021-12-17 06:16:05,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261d3836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 06:16:05, skipping insertion in model container [2021-12-17 06:16:05,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:16:05" (3/3) ... [2021-12-17 06:16:05,708 INFO L111 eAbstractionObserver]: Analyzing ICFG cos_polynomial.c [2021-12-17 06:16:05,712 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 06:16:05,712 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 06:16:05,768 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 06:16:05,774 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 06:16:05,774 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 06:16:05,785 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) [2021-12-17 06:16:05,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-17 06:16:05,790 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:16:05,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:16:05,791 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 06:16:05,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:16:05,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1236255304, now seen corresponding path program 1 times [2021-12-17 06:16:05,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 06:16:05,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957026255] [2021-12-17 06:16:05,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:16:05,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 06:16:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:16:05,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 06:16:05,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 06:16:05,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957026255] [2021-12-17 06:16:05,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957026255] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 06:16:05,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 06:16:05,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 06:16:05,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266064557] [2021-12-17 06:16:05,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 06:16:05,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 06:16:05,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 06:16:05,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 06:16:06,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 06:16:06,002 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) [2021-12-17 06:16:06,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 06:16:06,019 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-12-17 06:16:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 06:16:06,021 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 [2021-12-17 06:16:06,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 06:16:06,028 INFO L225 Difference]: With dead ends: 31 [2021-12-17 06:16:06,028 INFO L226 Difference]: Without dead ends: 13 [2021-12-17 06:16:06,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 06:16:06,040 INFO L933 BasicCegarLoop]: 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 [2021-12-17 06:16:06,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 06:16:06,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-12-17 06:16:06,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-12-17 06:16:06,065 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) [2021-12-17 06:16:06,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-12-17 06:16:06,067 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2021-12-17 06:16:06,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 06:16:06,067 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-12-17 06:16:06,068 INFO L471 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) [2021-12-17 06:16:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-12-17 06:16:06,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-17 06:16:06,069 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:16:06,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:16:06,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 06:16:06,070 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 06:16:06,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:16:06,075 INFO L85 PathProgramCache]: Analyzing trace with hash -2045601930, now seen corresponding path program 1 times [2021-12-17 06:16:06,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 06:16:06,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638150414] [2021-12-17 06:16:06,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:16:06,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 06:16:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 06:16:06,102 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 06:16:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 06:16:06,123 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 06:16:06,123 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 06:16:06,124 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 06:16:06,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 06:16:06,127 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-17 06:16:06,129 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 06:16:06,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 06:16:06 BoogieIcfgContainer [2021-12-17 06:16:06,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 06:16:06,151 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 06:16:06,151 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 06:16:06,152 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 06:16:06,152 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:16:05" (3/4) ... [2021-12-17 06:16:06,158 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-17 06:16:06,158 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 06:16:06,159 INFO L158 Benchmark]: Toolchain (without parser) took 981.55ms. Allocated memory is still 81.8MB. Free memory was 61.1MB in the beginning and 33.0MB in the end (delta: 28.1MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2021-12-17 06:16:06,160 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 81.8MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 06:16:06,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.36ms. Allocated memory is still 81.8MB. Free memory was 60.9MB in the beginning and 53.7MB in the end (delta: 7.2MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2021-12-17 06:16:06,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.66ms. Allocated memory is still 81.8MB. Free memory was 53.7MB in the beginning and 52.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 06:16:06,164 INFO L158 Benchmark]: Boogie Preprocessor took 15.98ms. Allocated memory is still 81.8MB. Free memory was 52.0MB in the beginning and 50.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 06:16:06,165 INFO L158 Benchmark]: RCFGBuilder took 284.35ms. Allocated memory is still 81.8MB. Free memory was 50.9MB in the beginning and 56.5MB in the end (delta: -5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-17 06:16:06,165 INFO L158 Benchmark]: TraceAbstraction took 448.27ms. Allocated memory is still 81.8MB. Free memory was 56.0MB in the beginning and 33.0MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-17 06:16:06,167 INFO L158 Benchmark]: Witness Printer took 7.64ms. Allocated memory is still 81.8MB. Free memory is still 33.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 06:16:06,169 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 81.8MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 191.36ms. Allocated memory is still 81.8MB. Free memory was 60.9MB in the beginning and 53.7MB in the end (delta: 7.2MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.66ms. Allocated memory is still 81.8MB. Free memory was 53.7MB in the beginning and 52.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.98ms. Allocated memory is still 81.8MB. Free memory was 52.0MB in the beginning and 50.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 284.35ms. Allocated memory is still 81.8MB. Free memory was 50.9MB in the beginning and 56.5MB in the end (delta: -5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 448.27ms. Allocated memory is still 81.8MB. Free memory was 56.0MB in the beginning and 33.0MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 7.64ms. Allocated memory is still 81.8MB. Free memory is still 33.0MB. 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, PartialOrderReductionTime: 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 [2021-12-17 06:16:06,214 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-tmp.no-commuhash-c3fed41 [2021-12-17 06:16:08,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 06:16:08,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 06:16:08,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 06:16:08,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 06:16:08,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 06:16:08,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 06:16:08,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 06:16:08,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 06:16:08,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 06:16:08,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 06:16:08,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 06:16:08,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 06:16:08,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 06:16:08,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 06:16:08,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 06:16:08,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 06:16:08,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 06:16:08,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 06:16:08,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 06:16:08,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 06:16:08,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 06:16:08,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 06:16:08,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 06:16:08,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 06:16:08,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 06:16:08,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 06:16:08,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 06:16:08,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 06:16:08,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 06:16:08,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 06:16:08,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 06:16:08,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 06:16:08,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 06:16:08,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 06:16:08,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 06:16:08,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 06:16:08,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 06:16:08,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 06:16:08,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 06:16:08,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 06:16:08,320 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-17 06:16:08,364 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 06:16:08,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 06:16:08,367 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 06:16:08,367 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 06:16:08,368 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 06:16:08,368 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 06:16:08,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 06:16:08,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 06:16:08,369 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 06:16:08,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 06:16:08,370 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 06:16:08,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 06:16:08,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 06:16:08,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 06:16:08,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 06:16:08,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 06:16:08,372 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-17 06:16:08,372 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-17 06:16:08,372 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-17 06:16:08,372 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 06:16:08,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 06:16:08,372 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 06:16:08,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 06:16:08,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 06:16:08,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 06:16:08,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 06:16:08,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 06:16:08,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 06:16:08,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 06:16:08,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 06:16:08,374 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-17 06:16:08,374 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-17 06:16:08,375 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 06:16:08,375 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 06:16:08,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 06:16:08,375 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 06:16:08,375 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-17 06:16:08,376 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb [2021-12-17 06:16:08,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 06:16:08,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 06:16:08,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 06:16:08,684 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 06:16:08,685 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 06:16:08,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cos_polynomial.c [2021-12-17 06:16:08,734 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a40a870cc/07275b7768494e139b9899bfb402e299/FLAG65b9ca2c6 [2021-12-17 06:16:09,153 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 06:16:09,153 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c [2021-12-17 06:16:09,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a40a870cc/07275b7768494e139b9899bfb402e299/FLAG65b9ca2c6 [2021-12-17 06:16:09,563 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a40a870cc/07275b7768494e139b9899bfb402e299 [2021-12-17 06:16:09,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 06:16:09,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 06:16:09,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 06:16:09,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 06:16:09,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 06:16:09,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 06:16:09" (1/1) ... [2021-12-17 06:16:09,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74759b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:09, skipping insertion in model container [2021-12-17 06:16:09,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 06:16:09" (1/1) ... [2021-12-17 06:16:09,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 06:16:09,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 06:16:09,712 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] [2021-12-17 06:16:09,736 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 06:16:09,748 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 06:16:09,792 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] [2021-12-17 06:16:09,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 06:16:09,818 INFO L208 MainTranslator]: Completed translation [2021-12-17 06:16:09,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:09 WrapperNode [2021-12-17 06:16:09,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 06:16:09,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 06:16:09,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 06:16:09,820 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 06:16:09,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:09" (1/1) ... [2021-12-17 06:16:09,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:09" (1/1) ... [2021-12-17 06:16:09,854 INFO L137 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2021-12-17 06:16:09,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 06:16:09,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 06:16:09,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 06:16:09,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 06:16:09,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:09" (1/1) ... [2021-12-17 06:16:09,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:09" (1/1) ... [2021-12-17 06:16:09,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:09" (1/1) ... [2021-12-17 06:16:09,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:09" (1/1) ... [2021-12-17 06:16:09,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:09" (1/1) ... [2021-12-17 06:16:09,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:09" (1/1) ... [2021-12-17 06:16:09,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:09" (1/1) ... [2021-12-17 06:16:09,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 06:16:09,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 06:16:09,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 06:16:09,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 06:16:09,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:09" (1/1) ... [2021-12-17 06:16:09,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 06:16:09,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 06:16:09,916 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) [2021-12-17 06:16:09,935 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 [2021-12-17 06:16:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 06:16:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-17 06:16:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 06:16:09,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 06:16:09,999 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 06:16:10,000 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 06:16:15,752 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 06:16:15,756 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 06:16:15,756 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 06:16:15,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:16:15 BoogieIcfgContainer [2021-12-17 06:16:15,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 06:16:15,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 06:16:15,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 06:16:15,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 06:16:15,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 06:16:09" (1/3) ... [2021-12-17 06:16:15,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b473b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 06:16:15, skipping insertion in model container [2021-12-17 06:16:15,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:16:09" (2/3) ... [2021-12-17 06:16:15,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b473b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 06:16:15, skipping insertion in model container [2021-12-17 06:16:15,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:16:15" (3/3) ... [2021-12-17 06:16:15,777 INFO L111 eAbstractionObserver]: Analyzing ICFG cos_polynomial.c [2021-12-17 06:16:15,780 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 06:16:15,784 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 06:16:15,824 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 06:16:15,829 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 06:16:15,829 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 06:16:15,857 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) [2021-12-17 06:16:15,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-17 06:16:15,870 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:16:15,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:16:15,871 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 06:16:15,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:16:15,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1236255304, now seen corresponding path program 1 times [2021-12-17 06:16:15,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 06:16:15,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356921397] [2021-12-17 06:16:15,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:16:15,891 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 06:16:15,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 06:16:15,897 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) [2021-12-17 06:16:15,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-17 06:16:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:16:17,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 06:16:17,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 06:16:17,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 06:16:17,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 06:16:17,966 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 06:16:17,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356921397] [2021-12-17 06:16:17,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356921397] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 06:16:17,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 06:16:17,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 06:16:17,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869309473] [2021-12-17 06:16:17,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 06:16:17,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 06:16:17,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 06:16:18,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 06:16:18,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 06:16:18,004 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) [2021-12-17 06:16:18,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 06:16:18,019 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-12-17 06:16:18,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 06:16:18,021 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 [2021-12-17 06:16:18,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 06:16:18,026 INFO L225 Difference]: With dead ends: 31 [2021-12-17 06:16:18,026 INFO L226 Difference]: Without dead ends: 13 [2021-12-17 06:16:18,028 INFO L932 BasicCegarLoop]: 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 [2021-12-17 06:16:18,031 INFO L933 BasicCegarLoop]: 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 [2021-12-17 06:16:18,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 06:16:18,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-12-17 06:16:18,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-12-17 06:16:18,050 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) [2021-12-17 06:16:18,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-12-17 06:16:18,052 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2021-12-17 06:16:18,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 06:16:18,052 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-12-17 06:16:18,052 INFO L471 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) [2021-12-17 06:16:18,052 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-12-17 06:16:18,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-17 06:16:18,053 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:16:18,053 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:16:18,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-17 06:16:18,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 06:16:18,272 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 06:16:18,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:16:18,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2045601930, now seen corresponding path program 1 times [2021-12-17 06:16:18,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 06:16:18,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686898570] [2021-12-17 06:16:18,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:16:18,273 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 06:16:18,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 06:16:18,276 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) [2021-12-17 06:16:18,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-17 06:17:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:17:35,108 WARN L261 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-17 06:17:35,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 06:18:13,462 WARN L227 SmtUtils]: Spent 16.06s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-17 06:18:38,013 WARN L227 SmtUtils]: Spent 8.40s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-17 06:18:59,892 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (exists ((|v_ULTIMATE.start_mcos_~x#1_10| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0))) (.cse1 (fp.mul c_currentRoundingMode |v_ULTIMATE.start_mcos_~x#1_10| |v_ULTIMATE.start_mcos_~x#1_10|))) (and (fp.geq |v_ULTIMATE.start_mcos_~x#1_10| (fp.neg .cse0)) (fp.lt |v_ULTIMATE.start_mcos_~x#1_10| (_ +zero 11 53)) (= |c_ULTIMATE.start_mcos_~hz~0#1| (fp.mul c_currentRoundingMode .cse0 .cse1)) (= |c_ULTIMATE.start_mcos_~zr~0#1| (fp.mul c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 416666666666666019037.0 10000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 138888888888741095749.0 100000000000000000000000.0))) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 124007936447383647089.0 5000000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 55114628702781326607.0 200000000000000000000000000.0))) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 20875723212981748279.0 10000000000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse1 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 22719295115576389653.0 2000000000000000000000000000000.0)))))))))))))))))))) is different from false [2021-12-17 06:19:05,142 WARN L227 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:19:10,253 WARN L227 SmtUtils]: Spent 5.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:19:17,583 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (exists ((|v_ULTIMATE.start_mcos_~x#1_10| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)))) (and (fp.geq |v_ULTIMATE.start_mcos_~x#1_10| (fp.neg .cse0)) (fp.lt |v_ULTIMATE.start_mcos_~x#1_10| (_ +zero 11 53)) (= |c_ULTIMATE.start_mcos_#res#1| (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) (let ((.cse1 (fp.mul c_currentRoundingMode |v_ULTIMATE.start_mcos_~x#1_10| |v_ULTIMATE.start_mcos_~x#1_10|))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse1) (fp.mul c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 416666666666666019037.0 10000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 138888888888741095749.0 100000000000000000000000.0))) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 124007936447383647089.0 5000000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 55114628702781326607.0 200000000000000000000000000.0))) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 20875723212981748279.0 10000000000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse1 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 22719295115576389653.0 2000000000000000000000000000000.0))))))))))))))))))))))) is different from false [2021-12-17 06:19:27,736 WARN L227 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:19:32,810 WARN L227 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:19:50,038 WARN L227 SmtUtils]: Spent 5.13s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:19:55,306 WARN L227 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:20:00,389 WARN L227 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 40 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:20:05,576 WARN L227 SmtUtils]: Spent 5.19s on a formula simplification that was a NOOP. DAG size: 41 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:20:10,718 WARN L227 SmtUtils]: Spent 5.14s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:20:15,784 WARN L227 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:20:23,361 WARN L227 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 39 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:20:28,523 WARN L227 SmtUtils]: Spent 5.16s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:20:33,611 WARN L227 SmtUtils]: Spent 5.09s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:20:38,732 WARN L227 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 40 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:20:43,857 WARN L227 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:20:48,961 WARN L227 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:20:54,047 WARN L227 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:20:59,168 WARN L227 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 40 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:21:04,276 WARN L227 SmtUtils]: Spent 5.11s on a formula simplification that was a NOOP. DAG size: 41 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:21:09,379 WARN L227 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:21:14,464 WARN L227 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 39 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:21:19,707 WARN L227 SmtUtils]: Spent 5.24s on a formula simplification that was a NOOP. DAG size: 40 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:21:22,144 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_mcos_~x#1_10| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)))) (and (fp.geq |v_ULTIMATE.start_mcos_~x#1_10| (fp.neg .cse0)) (fp.lt |v_ULTIMATE.start_mcos_~x#1_10| (_ +zero 11 53)) (let ((.cse3 (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (let ((.cse4 (fp.mul roundNearestTiesToEven |v_ULTIMATE.start_mcos_~x#1_10| |v_ULTIMATE.start_mcos_~x#1_10|))) (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse4) (fp.mul roundNearestTiesToEven .cse4 (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 416666666666666019037.0 10000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 138888888888741095749.0 100000000000000000000000.0))) (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 124007936447383647089.0 5000000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 55114628702781326607.0 200000000000000000000000000.0))) (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 20875723212981748279.0 10000000000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse4 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 22719295115576389653.0 2000000000000000000000000000000.0)))))))))))))))))))) (let ((.cse1 (fp.geq .cse3 (_ +zero 11 53))) (.cse2 (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 11.0 10.0))))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (not .cse1) (not .cse2))) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1 .cse2))))))) is different from false [2021-12-17 06:21:24,378 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_mcos_~x#1_10| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)))) (and (fp.geq |v_ULTIMATE.start_mcos_~x#1_10| (fp.neg .cse0)) (fp.lt |v_ULTIMATE.start_mcos_~x#1_10| (_ +zero 11 53)) (let ((.cse3 (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (let ((.cse4 (fp.mul roundNearestTiesToEven |v_ULTIMATE.start_mcos_~x#1_10| |v_ULTIMATE.start_mcos_~x#1_10|))) (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse4) (fp.mul roundNearestTiesToEven .cse4 (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 416666666666666019037.0 10000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 138888888888741095749.0 100000000000000000000000.0))) (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 124007936447383647089.0 5000000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 55114628702781326607.0 200000000000000000000000000.0))) (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 20875723212981748279.0 10000000000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse4 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 22719295115576389653.0 2000000000000000000000000000000.0)))))))))))))))))))) (let ((.cse1 (fp.geq .cse3 (_ +zero 11 53))) (.cse2 (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 11.0 10.0))))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (not .cse1) (not .cse2))) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1 .cse2))))))) is different from true [2021-12-17 06:21:34,464 WARN L227 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:21:39,554 WARN L227 SmtUtils]: Spent 5.09s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:21:56,563 WARN L227 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:22:01,615 WARN L227 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:22:06,643 WARN L227 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 40 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:22:11,667 WARN L227 SmtUtils]: Spent 5.02s on a formula simplification that was a NOOP. DAG size: 41 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:22:16,691 WARN L227 SmtUtils]: Spent 5.02s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:22:21,727 WARN L227 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:22:24,161 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_mcos_~x#1_10| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)))) (and (let ((.cse0 (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (let ((.cse2 (fp.mul roundNearestTiesToEven |v_ULTIMATE.start_mcos_~x#1_10| |v_ULTIMATE.start_mcos_~x#1_10|))) (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse1 .cse2) (fp.mul roundNearestTiesToEven .cse2 (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 416666666666666019037.0 10000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 138888888888741095749.0 100000000000000000000000.0))) (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 124007936447383647089.0 5000000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 55114628702781326607.0 200000000000000000000000000.0))) (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 20875723212981748279.0 10000000000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse2 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 22719295115576389653.0 2000000000000000000000000000000.0)))))))))))))))))))) (or (not (fp.geq .cse0 (_ +zero 11 53))) (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 11.0 10.0)))))) (fp.geq |v_ULTIMATE.start_mcos_~x#1_10| (fp.neg .cse1)) (fp.lt |v_ULTIMATE.start_mcos_~x#1_10| (_ +zero 11 53))))) is different from false [2021-12-17 06:22:26,399 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_mcos_~x#1_10| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)))) (and (let ((.cse0 (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (let ((.cse2 (fp.mul roundNearestTiesToEven |v_ULTIMATE.start_mcos_~x#1_10| |v_ULTIMATE.start_mcos_~x#1_10|))) (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse1 .cse2) (fp.mul roundNearestTiesToEven .cse2 (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 416666666666666019037.0 10000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 138888888888741095749.0 100000000000000000000000.0))) (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 124007936447383647089.0 5000000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 55114628702781326607.0 200000000000000000000000000.0))) (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 20875723212981748279.0 10000000000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse2 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 22719295115576389653.0 2000000000000000000000000000000.0)))))))))))))))))))) (or (not (fp.geq .cse0 (_ +zero 11 53))) (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 11.0 10.0)))))) (fp.geq |v_ULTIMATE.start_mcos_~x#1_10| (fp.neg .cse1)) (fp.lt |v_ULTIMATE.start_mcos_~x#1_10| (_ +zero 11 53))))) is different from true [2021-12-17 06:22:26,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 06:22:26,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 06:22:26,400 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 06:22:26,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686898570] [2021-12-17 06:22:26,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686898570] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 06:22:26,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 06:22:26,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 06:22:26,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919511837] [2021-12-17 06:22:26,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 06:22:26,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 06:22:26,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 06:22:26,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 06:22:26,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=27, Unknown=8, NotChecked=52, Total=110 [2021-12-17 06:22:26,402 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 11 states, 10 states have (on average 1.0) internal successors, (10), 10 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) [2021-12-17 06:23:01,909 WARN L227 SmtUtils]: Spent 29.42s on a formula simplification. DAG size of input: 56 DAG size of output: 48 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-17 06:23:03,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 06:23:05,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 06:23:28,583 WARN L227 SmtUtils]: Spent 18.47s on a formula simplification. DAG size of input: 59 DAG size of output: 51 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-17 06:23:29,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 06:23:32,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 06:23:34,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 06:23:36,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 06:23:36,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 06:23:36,673 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2021-12-17 06:23:36,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 06:23:36,719 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.0) internal successors, (10), 10 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 [2021-12-17 06:23:36,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 06:23:36,719 INFO L225 Difference]: With dead ends: 19 [2021-12-17 06:23:36,719 INFO L226 Difference]: Without dead ends: 15 [2021-12-17 06:23:36,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 111.2s TimeCoverageRelationStatistics Valid=42, Invalid=54, Unknown=10, NotChecked=76, Total=182 [2021-12-17 06:23:36,720 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2021-12-17 06:23:36,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 11 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 2 Unknown, 48 Unchecked, 12.8s Time] [2021-12-17 06:23:36,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-12-17 06:23:36,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-12-17 06:23:36,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 06:23:36,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-12-17 06:23:36,723 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2021-12-17 06:23:36,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 06:23:36,723 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-12-17 06:23:36,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.0) internal successors, (10), 10 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) [2021-12-17 06:23:36,723 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-12-17 06:23:36,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-17 06:23:36,723 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:23:36,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:23:36,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-17 06:23:36,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 06:23:36,932 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 06:23:36,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:23:36,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1988343628, now seen corresponding path program 1 times [2021-12-17 06:23:36,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 06:23:36,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685143865] [2021-12-17 06:23:36,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:23:36,934 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 06:23:36,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 06:23:36,940 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 06:23:36,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-17 06:26:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:26:54,619 WARN L261 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-17 06:26:54,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 06:27:30,816 WARN L227 SmtUtils]: Spent 15.51s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-17 06:27:59,526 WARN L227 SmtUtils]: Spent 12.17s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-17 06:28:04,874 WARN L227 SmtUtils]: Spent 5.33s on a formula simplification that was a NOOP. DAG size: 8 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:28:10,835 WARN L227 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:28:15,879 WARN L227 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 4 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:28:20,972 WARN L227 SmtUtils]: Spent 5.09s on a formula simplification that was a NOOP. DAG size: 32 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:28:25,987 WARN L227 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:28:28,356 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_mcos_~x#1| |c_ULTIMATE.start_mcos_~x#1|))) (and (= |c_ULTIMATE.start_mcos_~hz~0#1| (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) .cse0)) (= c_currentRoundingMode roundNearestTiesToEven) (not (fp.lt |c_ULTIMATE.start_mcos_~x#1| (_ +zero 11 53))) (= |c_ULTIMATE.start_mcos_~zr~0#1| (fp.mul c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 416666666666666019037.0 10000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 138888888888741095749.0 100000000000000000000000.0))) (fp.mul c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 124007936447383647089.0 5000000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 55114628702781326607.0 200000000000000000000000000.0))) (fp.mul c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 20875723212981748279.0 10000000000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse0 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 22719295115576389653.0 2000000000000000000000000000000.0)))))))))))))))) (fp.leq |c_ULTIMATE.start_mcos_~x#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 4.0))))) is different from false [2021-12-17 06:28:35,184 WARN L227 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 39 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:28:40,582 WARN L227 SmtUtils]: Spent 5.40s on a formula simplification that was a NOOP. DAG size: 4 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:28:45,981 WARN L227 SmtUtils]: Spent 5.40s on a formula simplification that was a NOOP. DAG size: 5 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:28:49,851 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (exists ((|ULTIMATE.start_mcos_~x#1| (_ FloatingPoint 11 53))) (and (= |c_ULTIMATE.start_mcos_#res#1| (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) (let ((.cse0 (fp.mul c_currentRoundingMode |ULTIMATE.start_mcos_~x#1| |ULTIMATE.start_mcos_~x#1|))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) .cse0) (fp.mul c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 416666666666666019037.0 10000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 138888888888741095749.0 100000000000000000000000.0))) (fp.mul c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 124007936447383647089.0 5000000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 55114628702781326607.0 200000000000000000000000000.0))) (fp.mul c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 20875723212981748279.0 10000000000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse0 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 22719295115576389653.0 2000000000000000000000000000000.0))))))))))))))))))) (not (fp.lt |ULTIMATE.start_mcos_~x#1| (_ +zero 11 53))) (fp.lt |ULTIMATE.start_mcos_~x#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 10.0)))))) is different from false [2021-12-17 06:28:57,788 WARN L227 SmtUtils]: Spent 5.40s on a formula simplification that was a NOOP. DAG size: 4 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:29:03,224 WARN L227 SmtUtils]: Spent 5.43s on a formula simplification that was a NOOP. DAG size: 40 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:29:08,628 WARN L227 SmtUtils]: Spent 5.40s on a formula simplification that was a NOOP. DAG size: 39 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:29:14,058 WARN L227 SmtUtils]: Spent 5.43s on a formula simplification that was a NOOP. DAG size: 5 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:29:24,085 WARN L227 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 40 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:29:29,609 WARN L227 SmtUtils]: Spent 5.52s on a formula simplification that was a NOOP. DAG size: 4 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:29:35,178 WARN L227 SmtUtils]: Spent 5.57s on a formula simplification that was a NOOP. DAG size: 5 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:29:43,332 WARN L227 SmtUtils]: Spent 5.54s on a formula simplification that was a NOOP. DAG size: 4 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:29:48,344 WARN L227 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 41 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:29:53,999 WARN L227 SmtUtils]: Spent 5.65s on a formula simplification that was a NOOP. DAG size: 5 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:29:59,533 WARN L227 SmtUtils]: Spent 5.53s on a formula simplification that was a NOOP. DAG size: 40 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:30:05,082 WARN L227 SmtUtils]: Spent 5.55s on a formula simplification that was a NOOP. DAG size: 41 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:30:10,646 WARN L227 SmtUtils]: Spent 5.56s on a formula simplification that was a NOOP. DAG size: 4 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:30:16,198 WARN L227 SmtUtils]: Spent 5.55s on a formula simplification that was a NOOP. DAG size: 5 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:30:21,763 WARN L227 SmtUtils]: Spent 5.56s on a formula simplification that was a NOOP. DAG size: 4 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:30:27,302 WARN L227 SmtUtils]: Spent 5.54s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:30:32,834 WARN L227 SmtUtils]: Spent 5.53s on a formula simplification that was a NOOP. DAG size: 40 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:30:38,397 WARN L227 SmtUtils]: Spent 5.56s on a formula simplification that was a NOOP. DAG size: 39 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:30:43,930 WARN L227 SmtUtils]: Spent 5.53s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:30:49,424 WARN L227 SmtUtils]: Spent 5.49s on a formula simplification that was a NOOP. DAG size: 40 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-17 06:30:54,982 WARN L227 SmtUtils]: Spent 5.56s on a formula simplification that was a NOOP. DAG size: 41 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Killed by 15