./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/sine_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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/floats-cdfpl/sine_5.i -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 270a9c1e420107c8e3e8afca202d7d592d29475423d99ca6e9bf1d3a051adfb4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:44:51,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:44:51,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:44:51,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:44:51,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:44:51,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:44:51,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:44:51,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:44:51,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:44:51,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:44:51,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:44:51,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:44:51,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:44:51,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:44:51,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:44:51,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:44:51,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:44:51,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:44:51,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:44:51,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:44:51,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:44:51,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:44:51,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:44:51,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:44:51,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:44:51,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:44:51,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:44:51,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:44:51,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:44:51,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:44:51,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:44:51,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:44:51,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:44:51,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:44:51,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:44:51,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:44:51,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:44:51,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:44:51,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:44:51,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:44:51,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:44:51,273 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 11:44:51,308 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:44:51,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:44:51,309 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:44:51,309 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:44:51,310 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:44:51,310 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:44:51,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:44:51,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:44:51,311 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:44:51,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:44:51,312 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:44:51,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 11:44:51,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:44:51,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:44:51,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:44:51,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:44:51,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:44:51,313 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:44:51,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:44:51,313 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:44:51,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:44:51,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:44:51,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:44:51,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:44:51,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:44:51,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:44:51,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:44:51,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:44:51,316 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 11:44:51,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 11:44:51,316 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:44:51,316 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:44:51,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:44:51,317 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:44:51,317 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 270a9c1e420107c8e3e8afca202d7d592d29475423d99ca6e9bf1d3a051adfb4 [2021-12-21 11:44:51,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:44:51,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:44:51,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:44:51,571 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:44:51,572 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:44:51,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/sine_5.i [2021-12-21 11:44:51,644 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81982d072/536163caecd0411986ab431caea91046/FLAG0c7c4ba39 [2021-12-21 11:44:51,951 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:44:51,952 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_5.i [2021-12-21 11:44:51,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81982d072/536163caecd0411986ab431caea91046/FLAG0c7c4ba39 [2021-12-21 11:44:52,385 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81982d072/536163caecd0411986ab431caea91046 [2021-12-21 11:44:52,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:44:52,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:44:52,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:44:52,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:44:52,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:44:52,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:44:52" (1/1) ... [2021-12-21 11:44:52,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dbbb8a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:52, skipping insertion in model container [2021-12-21 11:44:52,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:44:52" (1/1) ... [2021-12-21 11:44:52,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:44:52,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:44:52,554 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/floats-cdfpl/sine_5.i[1641,1654] [2021-12-21 11:44:52,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:44:52,563 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:44:52,576 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/floats-cdfpl/sine_5.i[1641,1654] [2021-12-21 11:44:52,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:44:52,588 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:44:52,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:52 WrapperNode [2021-12-21 11:44:52,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:44:52,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:44:52,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:44:52,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:44:52,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:52" (1/1) ... [2021-12-21 11:44:52,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:52" (1/1) ... [2021-12-21 11:44:52,617 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2021-12-21 11:44:52,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:44:52,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:44:52,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:44:52,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:44:52,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:52" (1/1) ... [2021-12-21 11:44:52,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:52" (1/1) ... [2021-12-21 11:44:52,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:52" (1/1) ... [2021-12-21 11:44:52,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:52" (1/1) ... [2021-12-21 11:44:52,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:52" (1/1) ... [2021-12-21 11:44:52,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:52" (1/1) ... [2021-12-21 11:44:52,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:52" (1/1) ... [2021-12-21 11:44:52,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:44:52,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:44:52,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:44:52,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:44:52,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:52" (1/1) ... [2021-12-21 11:44:52,656 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:44:52,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:44:52,680 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) [2021-12-21 11:44:52,682 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 [2021-12-21 11:44:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:44:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 11:44:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:44:52,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:44:52,757 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:44:52,759 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:44:52,824 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:44:52,828 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:44:52,828 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 11:44:52,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:44:52 BoogieIcfgContainer [2021-12-21 11:44:52,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:44:52,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:44:52,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:44:52,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:44:52,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:44:52" (1/3) ... [2021-12-21 11:44:52,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7921d436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:44:52, skipping insertion in model container [2021-12-21 11:44:52,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:52" (2/3) ... [2021-12-21 11:44:52,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7921d436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:44:52, skipping insertion in model container [2021-12-21 11:44:52,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:44:52" (3/3) ... [2021-12-21 11:44:52,837 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_5.i [2021-12-21 11:44:52,841 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:44:52,841 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 11:44:52,881 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:44:52,888 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 [2021-12-21 11:44:52,888 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 11:44:52,901 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) [2021-12-21 11:44:52,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-21 11:44:52,921 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:44:52,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-21 11:44:52,923 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:44:52,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:44:52,932 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-12-21 11:44:52,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:44:52,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17208228] [2021-12-21 11:44:52,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:44:52,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:44:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:44:53,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:44:53,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:44:53,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17208228] [2021-12-21 11:44:53,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17208228] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:44:53,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:44:53,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 11:44:53,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977753452] [2021-12-21 11:44:53,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:44:53,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 11:44:53,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:44:53,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 11:44:53,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:44:53,110 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-12-21 11:44:53,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:44:53,123 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-12-21 11:44:53,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 11:44:53,124 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-12-21 11:44:53,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:44:53,130 INFO L225 Difference]: With dead ends: 19 [2021-12-21 11:44:53,131 INFO L226 Difference]: Without dead ends: 7 [2021-12-21 11:44:53,134 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 [2021-12-21 11:44:53,138 INFO L933 BasicCegarLoop]: 10 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, 10 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 [2021-12-21 11:44:53,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:44:53,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-12-21 11:44:53,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-12-21 11:44:53,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 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) [2021-12-21 11:44:53,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-12-21 11:44:53,162 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-12-21 11:44:53,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:44:53,162 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-12-21 11:44:53,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-12-21 11:44:53,163 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-12-21 11:44:53,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-21 11:44:53,164 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:44:53,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-21 11:44:53,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 11:44:53,165 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:44:53,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:44:53,169 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-12-21 11:44:53,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:44:53,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207314668] [2021-12-21 11:44:53,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:44:53,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:44:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:44:53,207 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 11:44:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:44:53,244 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 11:44:53,244 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 11:44:53,247 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 11:44:53,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 11:44:53,256 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-21 11:44:53,261 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 11:44:53,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:44:53 BoogieIcfgContainer [2021-12-21 11:44:53,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 11:44:53,311 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 11:44:53,312 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 11:44:53,312 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 11:44:53,312 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:44:52" (3/4) ... [2021-12-21 11:44:53,314 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 11:44:53,315 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 11:44:53,315 INFO L158 Benchmark]: Toolchain (without parser) took 926.42ms. Allocated memory is still 90.2MB. Free memory was 55.3MB in the beginning and 68.1MB in the end (delta: -12.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:44:53,316 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 90.2MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:44:53,316 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.29ms. Allocated memory is still 90.2MB. Free memory was 55.0MB in the beginning and 67.6MB in the end (delta: -12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 11:44:53,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.74ms. Allocated memory is still 90.2MB. Free memory was 67.6MB in the beginning and 66.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:44:53,317 INFO L158 Benchmark]: Boogie Preprocessor took 29.77ms. Allocated memory is still 90.2MB. Free memory was 66.1MB in the beginning and 65.2MB in the end (delta: 916.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:44:53,318 INFO L158 Benchmark]: RCFGBuilder took 181.51ms. Allocated memory is still 90.2MB. Free memory was 65.2MB in the beginning and 56.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 11:44:53,318 INFO L158 Benchmark]: TraceAbstraction took 479.80ms. Allocated memory is still 90.2MB. Free memory was 56.2MB in the beginning and 68.5MB in the end (delta: -12.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-21 11:44:53,319 INFO L158 Benchmark]: Witness Printer took 3.38ms. Allocated memory is still 90.2MB. Free memory was 68.5MB in the beginning and 68.1MB in the end (delta: 393.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:44:53,321 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 90.2MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.29ms. Allocated memory is still 90.2MB. Free memory was 55.0MB in the beginning and 67.6MB in the end (delta: -12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.74ms. Allocated memory is still 90.2MB. Free memory was 67.6MB in the beginning and 66.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.77ms. Allocated memory is still 90.2MB. Free memory was 66.1MB in the beginning and 65.2MB in the end (delta: 916.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 181.51ms. Allocated memory is still 90.2MB. Free memory was 65.2MB in the beginning and 56.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 479.80ms. Allocated memory is still 90.2MB. Free memory was 56.2MB in the beginning and 68.5MB in the end (delta: -12.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 3.38ms. Allocated memory is still 90.2MB. Free memory was 68.5MB in the beginning and 68.1MB in the end (delta: 393.0kB). 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: 37]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 36, overapproximation of someBinaryArithmeticFLOAToperation at line 34. Possible FailurePath: [L29] float IN = __VERIFIER_nondet_float(); [L30] CALL assume_abort_if_not(IN > -1.57079632679f && IN < 1.57079632679f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L30] RET assume_abort_if_not(IN > -1.57079632679f && IN < 1.57079632679f) [L32] float x = IN; [L34] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [IN=49, x=49] [L36] COND TRUE !(result <= 1.1f && result >= -1.1f) VAL [IN=49, x=49] [L37] reach_error() VAL [IN=49, x=49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 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, 10 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, 10 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=11occurred 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, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 [2021-12-21 11:44:53,363 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/floats-cdfpl/sine_5.i -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 270a9c1e420107c8e3e8afca202d7d592d29475423d99ca6e9bf1d3a051adfb4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:44:55,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:44:55,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:44:55,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:44:55,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:44:55,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:44:55,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:44:55,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:44:55,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:44:55,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:44:55,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:44:55,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:44:55,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:44:55,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:44:55,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:44:55,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:44:55,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:44:55,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:44:55,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:44:55,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:44:55,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:44:55,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:44:55,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:44:55,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:44:55,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:44:55,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:44:55,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:44:55,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:44:55,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:44:55,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:44:55,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:44:55,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:44:55,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:44:55,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:44:55,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:44:55,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:44:55,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:44:55,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:44:55,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:44:55,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:44:55,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:44:55,384 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-21 11:44:55,423 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:44:55,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:44:55,424 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:44:55,424 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:44:55,425 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:44:55,426 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:44:55,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:44:55,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:44:55,427 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:44:55,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:44:55,428 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:44:55,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:44:55,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:44:55,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:44:55,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:44:55,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:44:55,429 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 11:44:55,430 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-21 11:44:55,430 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-21 11:44:55,430 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:44:55,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:44:55,430 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:44:55,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:44:55,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:44:55,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:44:55,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:44:55,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:44:55,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:44:55,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:44:55,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:44:55,432 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-21 11:44:55,432 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-21 11:44:55,433 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:44:55,433 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:44:55,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:44:55,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:44:55,434 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-21 11:44:55,434 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 270a9c1e420107c8e3e8afca202d7d592d29475423d99ca6e9bf1d3a051adfb4 [2021-12-21 11:44:55,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:44:55,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:44:55,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:44:55,756 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:44:55,757 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:44:55,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/sine_5.i [2021-12-21 11:44:55,820 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5243dd4/e04151b4fc2e4e388a7565dac8c534bf/FLAG8ad392c47 [2021-12-21 11:44:56,218 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:44:56,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_5.i [2021-12-21 11:44:56,224 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5243dd4/e04151b4fc2e4e388a7565dac8c534bf/FLAG8ad392c47 [2021-12-21 11:44:56,628 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5243dd4/e04151b4fc2e4e388a7565dac8c534bf [2021-12-21 11:44:56,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:44:56,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:44:56,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:44:56,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:44:56,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:44:56,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:44:56" (1/1) ... [2021-12-21 11:44:56,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b982f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:56, skipping insertion in model container [2021-12-21 11:44:56,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:44:56" (1/1) ... [2021-12-21 11:44:56,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:44:56,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:44:56,785 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/floats-cdfpl/sine_5.i[1641,1654] [2021-12-21 11:44:56,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:44:56,797 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:44:56,814 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/floats-cdfpl/sine_5.i[1641,1654] [2021-12-21 11:44:56,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:44:56,835 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:44:56,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:56 WrapperNode [2021-12-21 11:44:56,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:44:56,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:44:56,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:44:56,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:44:56,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:56" (1/1) ... [2021-12-21 11:44:56,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:56" (1/1) ... [2021-12-21 11:44:56,878 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2021-12-21 11:44:56,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:44:56,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:44:56,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:44:56,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:44:56,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:56" (1/1) ... [2021-12-21 11:44:56,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:56" (1/1) ... [2021-12-21 11:44:56,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:56" (1/1) ... [2021-12-21 11:44:56,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:56" (1/1) ... [2021-12-21 11:44:56,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:56" (1/1) ... [2021-12-21 11:44:56,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:56" (1/1) ... [2021-12-21 11:44:56,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:56" (1/1) ... [2021-12-21 11:44:56,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:44:56,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:44:56,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:44:56,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:44:56,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:56" (1/1) ... [2021-12-21 11:44:56,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:44:56,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:44:56,937 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) [2021-12-21 11:44:56,944 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 [2021-12-21 11:44:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:44:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-21 11:44:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:44:56,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:44:57,032 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:44:57,033 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:44:59,389 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:44:59,395 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:44:59,395 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 11:44:59,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:44:59 BoogieIcfgContainer [2021-12-21 11:44:59,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:44:59,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:44:59,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:44:59,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:44:59,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:44:56" (1/3) ... [2021-12-21 11:44:59,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d110164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:44:59, skipping insertion in model container [2021-12-21 11:44:59,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:56" (2/3) ... [2021-12-21 11:44:59,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d110164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:44:59, skipping insertion in model container [2021-12-21 11:44:59,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:44:59" (3/3) ... [2021-12-21 11:44:59,403 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_5.i [2021-12-21 11:44:59,407 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:44:59,407 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 11:44:59,447 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:44:59,453 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 [2021-12-21 11:44:59,453 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 11:44:59,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) [2021-12-21 11:44:59,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-21 11:44:59,472 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:44:59,476 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-21 11:44:59,477 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:44:59,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:44:59,482 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-12-21 11:44:59,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:44:59,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782557545] [2021-12-21 11:44:59,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:44:59,492 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:44:59,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:44:59,494 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) [2021-12-21 11:44:59,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-21 11:44:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:44:59,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-21 11:44:59,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:44:59,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:44:59,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:44:59,986 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 11:44:59,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782557545] [2021-12-21 11:44:59,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1782557545] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:44:59,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:44:59,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 11:44:59,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658527021] [2021-12-21 11:44:59,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:44:59,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 11:44:59,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 11:45:00,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 11:45:00,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:45:00,017 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-12-21 11:45:00,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:45:00,028 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-12-21 11:45:00,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 11:45:00,029 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-12-21 11:45:00,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:45:00,035 INFO L225 Difference]: With dead ends: 19 [2021-12-21 11:45:00,035 INFO L226 Difference]: Without dead ends: 7 [2021-12-21 11:45:00,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:45:00,041 INFO L933 BasicCegarLoop]: 10 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, 10 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 [2021-12-21 11:45:00,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:45:00,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-12-21 11:45:00,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-12-21 11:45:00,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 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) [2021-12-21 11:45:00,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-12-21 11:45:00,063 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-12-21 11:45:00,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:45:00,064 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-12-21 11:45:00,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-12-21 11:45:00,064 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-12-21 11:45:00,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-21 11:45:00,065 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:45:00,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-21 11:45:00,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-21 11:45:00,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 11:45:00,280 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:45:00,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:45:00,281 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-12-21 11:45:00,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:45:00,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767481095] [2021-12-21 11:45:00,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:45:00,282 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:45:00,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:45:00,283 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) [2021-12-21 11:45:00,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process