./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 6c24879c 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-?-6c24879 [2022-07-12 02:23:32,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:23:32,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:23:32,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:23:32,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:23:32,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:23:32,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:23:32,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:23:32,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:23:32,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:23:32,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:23:32,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:23:32,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:23:32,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:23:32,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:23:32,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:23:32,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:23:32,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:23:32,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:23:32,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:23:32,137 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:23:32,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:23:32,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:23:32,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:23:32,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:23:32,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:23:32,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:23:32,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:23:32,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:23:32,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:23:32,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:23:32,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:23:32,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:23:32,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:23:32,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:23:32,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:23:32,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:23:32,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:23:32,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:23:32,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:23:32,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:23:32,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:23:32,155 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 02:23:32,190 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:23:32,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:23:32,191 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:23:32,191 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:23:32,192 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:23:32,192 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:23:32,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:23:32,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:23:32,193 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:23:32,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:23:32,194 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:23:32,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 02:23:32,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:23:32,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:23:32,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:23:32,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:23:32,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:23:32,195 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:23:32,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:23:32,195 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:23:32,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:23:32,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:23:32,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:23:32,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:23:32,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:23:32,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:23:32,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:23:32,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:23:32,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 02:23:32,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 02:23:32,196 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:23:32,197 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:23:32,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:23:32,197 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb [2022-07-12 02:23:32,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:23:32,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:23:32,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:23:32,457 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:23:32,458 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:23:32,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cos_polynomial.c [2022-07-12 02:23:32,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83f2ba606/4c3f5700bc534e67891642489a7e5f65/FLAG8e5dc338a [2022-07-12 02:23:32,925 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:23:32,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c [2022-07-12 02:23:32,936 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83f2ba606/4c3f5700bc534e67891642489a7e5f65/FLAG8e5dc338a [2022-07-12 02:23:33,338 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83f2ba606/4c3f5700bc534e67891642489a7e5f65 [2022-07-12 02:23:33,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:23:33,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:23:33,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:23:33,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:23:33,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:23:33,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:23:33" (1/1) ... [2022-07-12 02:23:33,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c235754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:33, skipping insertion in model container [2022-07-12 02:23:33,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:23:33" (1/1) ... [2022-07-12 02:23:33,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:23:33,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:23:33,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2022-07-12 02:23:33,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:23:33,524 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:23:33,531 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2022-07-12 02:23:33,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:23:33,547 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:23:33,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:33 WrapperNode [2022-07-12 02:23:33,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:23:33,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:23:33,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:23:33,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:23:33,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:33" (1/1) ... [2022-07-12 02:23:33,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:33" (1/1) ... [2022-07-12 02:23:33,583 INFO L137 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-07-12 02:23:33,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:23:33,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:23:33,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:23:33,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:23:33,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:33" (1/1) ... [2022-07-12 02:23:33,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:33" (1/1) ... [2022-07-12 02:23:33,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:33" (1/1) ... [2022-07-12 02:23:33,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:33" (1/1) ... [2022-07-12 02:23:33,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:33" (1/1) ... [2022-07-12 02:23:33,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:33" (1/1) ... [2022-07-12 02:23:33,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:33" (1/1) ... [2022-07-12 02:23:33,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:23:33,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:23:33,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:23:33,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:23:33,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:33" (1/1) ... [2022-07-12 02:23:33,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:23:33,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:23:33,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 02:23:33,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 02:23:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:23:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 02:23:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:23:33,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:23:33,745 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:23:33,746 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:23:33,828 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:23:33,833 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:23:33,833 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:23:33,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:23:33 BoogieIcfgContainer [2022-07-12 02:23:33,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:23:33,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:23:33,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:23:33,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:23:33,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:23:33" (1/3) ... [2022-07-12 02:23:33,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778e15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:23:33, skipping insertion in model container [2022-07-12 02:23:33,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:33" (2/3) ... [2022-07-12 02:23:33,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778e15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:23:33, skipping insertion in model container [2022-07-12 02:23:33,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:23:33" (3/3) ... [2022-07-12 02:23:33,841 INFO L111 eAbstractionObserver]: Analyzing ICFG cos_polynomial.c [2022-07-12 02:23:33,853 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:23:33,853 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:23:33,890 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:23:33,912 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@25ec076, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6e90c15b [2022-07-12 02:23:33,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:23:33,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:23:33,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-12 02:23:33,935 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:23:33,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:23:33,936 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:23:33,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:23:33,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1236255304, now seen corresponding path program 1 times [2022-07-12 02:23:33,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:23:33,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083098651] [2022-07-12 02:23:33,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:23:33,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:23:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:23:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 02:23:34,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 02:23:34,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083098651] [2022-07-12 02:23:34,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083098651] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:23:34,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:23:34,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 02:23:34,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124459771] [2022-07-12 02:23:34,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:23:34,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 02:23:34,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 02:23:34,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 02:23:34,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:23:34,103 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:23:34,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:23:34,117 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2022-07-12 02:23:34,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 02:23:34,119 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-12 02:23:34,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:23:34,125 INFO L225 Difference]: With dead ends: 31 [2022-07-12 02:23:34,125 INFO L226 Difference]: Without dead ends: 13 [2022-07-12 02:23:34,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:23:34,134 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 02:23:34,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 02:23:34,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-07-12 02:23:34,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-07-12 02:23:34,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:23:34,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-07-12 02:23:34,161 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2022-07-12 02:23:34,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:23:34,162 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-07-12 02:23:34,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:23:34,162 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-07-12 02:23:34,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-12 02:23:34,162 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:23:34,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:23:34,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 02:23:34,163 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:23:34,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:23:34,164 INFO L85 PathProgramCache]: Analyzing trace with hash -2045601930, now seen corresponding path program 1 times [2022-07-12 02:23:34,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:23:34,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926984922] [2022-07-12 02:23:34,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:23:34,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:23:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:23:34,185 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 02:23:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:23:34,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 02:23:34,221 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 02:23:34,223 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 02:23:34,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 02:23:34,238 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 02:23:34,242 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:23:34,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:23:34 BoogieIcfgContainer [2022-07-12 02:23:34,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:23:34,262 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:23:34,262 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:23:34,262 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:23:34,263 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:23:33" (3/4) ... [2022-07-12 02:23:34,265 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 02:23:34,265 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:23:34,266 INFO L158 Benchmark]: Toolchain (without parser) took 924.34ms. Allocated memory is still 123.7MB. Free memory was 87.3MB in the beginning and 62.7MB in the end (delta: 24.6MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2022-07-12 02:23:34,266 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:23:34,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.65ms. Allocated memory is still 123.7MB. Free memory was 87.2MB in the beginning and 98.8MB in the end (delta: -11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:23:34,267 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.88ms. Allocated memory is still 123.7MB. Free memory was 98.8MB in the beginning and 97.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:23:34,268 INFO L158 Benchmark]: Boogie Preprocessor took 38.08ms. Allocated memory is still 123.7MB. Free memory was 97.5MB in the beginning and 96.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:23:34,268 INFO L158 Benchmark]: RCFGBuilder took 211.69ms. Allocated memory is still 123.7MB. Free memory was 96.3MB in the beginning and 86.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:23:34,268 INFO L158 Benchmark]: TraceAbstraction took 425.25ms. Allocated memory is still 123.7MB. Free memory was 86.3MB in the beginning and 62.7MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-12 02:23:34,269 INFO L158 Benchmark]: Witness Printer took 3.04ms. Allocated memory is still 123.7MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:23:34,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.65ms. Allocated memory is still 123.7MB. Free memory was 87.2MB in the beginning and 98.8MB in the end (delta: -11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.88ms. Allocated memory is still 123.7MB. Free memory was 98.8MB in the beginning and 97.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.08ms. Allocated memory is still 123.7MB. Free memory was 97.5MB in the beginning and 96.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 211.69ms. Allocated memory is still 123.7MB. Free memory was 96.3MB in the beginning and 86.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 425.25ms. Allocated memory is still 123.7MB. Free memory was 86.3MB in the beginning and 62.7MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 3.04ms. Allocated memory is still 123.7MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 56, overapproximation of someUnaryDOUBLEoperation at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 32. Possible FailurePath: [L16] double C1 = 4.16666666666666019037e-02; [L17] double C2 = -1.38888888888741095749e-03; [L18] double C3 = 2.48015872894767294178e-05; [L19] double C4 = -2.75573143513906633035e-07; [L20] double C5 = 2.08757232129817482790e-09; [L21] double C6 = -1.13596475577881948265e-11; VAL [C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L49] double a, r; [L51] a = __VERIFIER_nondet_double() [L52] CALL assume_abort_if_not(a >= -0.5 && a <= 0.75) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000, cond=1] [L52] RET assume_abort_if_not(a >= -0.5 && a <= 0.75) [L54] CALL, EXPR mcos(a) [L25] double a, hz, z, r, qx, zr; [L26] z = x*x VAL [\old(x)=50, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000, x=50] [L27] COND TRUE x < 0. [L27] x = -x VAL [\old(x)=50, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L28] hz = 0.5 * z [L29] r = z*(C1+z*(C2+z*(C3+z*(C4+z*(C5+z*C6))))) [L30] zr = z*r VAL [\old(x)=50, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L31] COND TRUE x < 0.3 [L32] return 1.-(hz-zr); VAL [\old(x)=50, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L54] RET, EXPR mcos(a) [L54] r = mcos(a) [L56] CALL __VERIFIER_assert(r >= 0. && r <= 1.1) [L14] COND TRUE !(cond) VAL [\old(cond)=0, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000, cond=0] [L14] reach_error() VAL [\old(cond)=0, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 19 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-12 02:23:34,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/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-?-6c24879 [2022-07-12 02:23:36,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:23:36,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:23:36,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:23:36,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:23:36,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:23:36,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:23:36,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:23:36,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:23:36,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:23:36,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:23:36,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:23:36,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:23:36,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:23:36,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:23:36,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:23:36,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:23:36,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:23:36,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:23:36,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:23:36,216 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:23:36,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:23:36,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:23:36,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:23:36,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:23:36,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:23:36,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:23:36,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:23:36,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:23:36,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:23:36,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:23:36,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:23:36,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:23:36,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:23:36,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:23:36,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:23:36,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:23:36,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:23:36,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:23:36,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:23:36,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:23:36,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:23:36,246 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-12 02:23:36,283 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:23:36,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:23:36,284 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:23:36,284 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:23:36,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:23:36,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:23:36,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:23:36,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:23:36,286 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:23:36,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:23:36,287 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:23:36,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:23:36,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:23:36,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:23:36,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:23:36,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:23:36,295 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 02:23:36,295 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 02:23:36,295 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 02:23:36,295 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:23:36,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:23:36,296 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:23:36,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:23:36,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:23:36,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:23:36,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:23:36,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:23:36,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:23:36,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:23:36,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:23:36,298 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 02:23:36,299 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 02:23:36,299 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:23:36,299 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:23:36,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:23:36,299 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 02:23:36,299 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb [2022-07-12 02:23:36,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:23:36,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:23:36,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:23:36,635 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:23:36,635 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:23:36,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cos_polynomial.c [2022-07-12 02:23:36,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a555c5ed8/379e4341da614749982f765ef3b5d8a3/FLAG5615a98b4 [2022-07-12 02:23:37,149 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:23:37,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c [2022-07-12 02:23:37,156 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a555c5ed8/379e4341da614749982f765ef3b5d8a3/FLAG5615a98b4 [2022-07-12 02:23:37,175 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a555c5ed8/379e4341da614749982f765ef3b5d8a3 [2022-07-12 02:23:37,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:23:37,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:23:37,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:23:37,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:23:37,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:23:37,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:23:37" (1/1) ... [2022-07-12 02:23:37,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e0f8057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:37, skipping insertion in model container [2022-07-12 02:23:37,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:23:37" (1/1) ... [2022-07-12 02:23:37,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:23:37,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:23:37,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2022-07-12 02:23:37,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:23:37,426 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:23:37,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2022-07-12 02:23:37,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:23:37,492 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:23:37,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:37 WrapperNode [2022-07-12 02:23:37,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:23:37,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:23:37,493 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:23:37,493 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:23:37,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:37" (1/1) ... [2022-07-12 02:23:37,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:37" (1/1) ... [2022-07-12 02:23:37,536 INFO L137 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2022-07-12 02:23:37,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:23:37,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:23:37,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:23:37,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:23:37,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:37" (1/1) ... [2022-07-12 02:23:37,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:37" (1/1) ... [2022-07-12 02:23:37,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:37" (1/1) ... [2022-07-12 02:23:37,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:37" (1/1) ... [2022-07-12 02:23:37,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:37" (1/1) ... [2022-07-12 02:23:37,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:37" (1/1) ... [2022-07-12 02:23:37,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:37" (1/1) ... [2022-07-12 02:23:37,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:23:37,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:23:37,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:23:37,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:23:37,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:37" (1/1) ... [2022-07-12 02:23:37,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:23:37,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:23:37,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 02:23:37,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 02:23:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:23:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 02:23:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:23:37,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:23:37,730 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:23:37,731 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:23:43,193 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:23:43,197 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:23:43,197 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:23:43,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:23:43 BoogieIcfgContainer [2022-07-12 02:23:43,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:23:43,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:23:43,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:23:43,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:23:43,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:23:37" (1/3) ... [2022-07-12 02:23:43,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b50dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:23:43, skipping insertion in model container [2022-07-12 02:23:43,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:37" (2/3) ... [2022-07-12 02:23:43,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b50dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:23:43, skipping insertion in model container [2022-07-12 02:23:43,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:23:43" (3/3) ... [2022-07-12 02:23:43,237 INFO L111 eAbstractionObserver]: Analyzing ICFG cos_polynomial.c [2022-07-12 02:23:43,248 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:23:43,249 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:23:43,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:23:43,305 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1b9817a7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2d5ebffe [2022-07-12 02:23:43,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:23:43,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:23:43,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-12 02:23:43,317 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:23:43,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:23:43,318 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:23:43,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:23:43,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1236255304, now seen corresponding path program 1 times [2022-07-12 02:23:43,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:23:43,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229333568] [2022-07-12 02:23:43,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:23:43,335 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:23:43,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:23:43,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 02:23:43,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 02:23:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:23:45,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 02:23:45,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 02:23:45,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 02:23:45,197 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 02:23:45,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 02:23:45,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229333568] [2022-07-12 02:23:45,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229333568] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:23:45,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:23:45,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 02:23:45,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550895699] [2022-07-12 02:23:45,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:23:45,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 02:23:45,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 02:23:45,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 02:23:45,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:23:45,235 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:23:45,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:23:45,249 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2022-07-12 02:23:45,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 02:23:45,251 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-12 02:23:45,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:23:45,268 INFO L225 Difference]: With dead ends: 31 [2022-07-12 02:23:45,268 INFO L226 Difference]: Without dead ends: 13 [2022-07-12 02:23:45,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:23:45,274 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 02:23:45,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 02:23:45,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-07-12 02:23:45,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-07-12 02:23:45,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:23:45,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-07-12 02:23:45,303 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2022-07-12 02:23:45,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:23:45,303 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-07-12 02:23:45,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:23:45,304 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-07-12 02:23:45,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-12 02:23:45,305 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:23:45,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:23:45,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 02:23:45,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 02:23:45,513 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:23:45,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:23:45,514 INFO L85 PathProgramCache]: Analyzing trace with hash -2045601930, now seen corresponding path program 1 times [2022-07-12 02:23:45,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:23:45,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966884637] [2022-07-12 02:23:45,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:23:45,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:23:45,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:23:45,519 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 02:23:45,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process