./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/sin_interpolated_smallrange.c --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/float-benchs/sin_interpolated_smallrange.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 5423b27090f3cf0121cc8887f927af7adf1f36a8d0cd9b6a020d1176d1eeff74 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:51:11,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:51:11,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:51:11,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:51:11,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:51:11,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:51:11,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:51:11,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:51:11,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:51:11,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:51:11,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:51:11,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:51:11,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:51:11,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:51:11,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:51:11,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:51:11,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:51:11,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:51:11,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:51:11,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:51:11,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:51:11,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:51:11,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:51:11,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:51:11,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:51:11,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:51:11,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:51:11,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:51:11,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:51:11,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:51:11,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:51:11,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:51:11,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:51:11,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:51:11,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:51:11,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:51:11,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:51:11,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:51:11,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:51:11,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:51:11,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:51:11,444 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 11:51:11,469 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:51:11,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:51:11,470 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:51:11,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:51:11,470 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:51:11,470 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:51:11,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:51:11,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:51:11,471 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:51:11,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:51:11,472 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:51:11,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 11:51:11,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:51:11,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:51:11,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:51:11,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:51:11,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:51:11,473 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:51:11,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:51:11,473 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:51:11,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:51:11,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:51:11,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:51:11,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:51:11,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:51:11,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:51:11,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:51:11,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:51:11,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 11:51:11,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 11:51:11,476 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:51:11,476 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:51:11,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:51:11,477 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:51:11,477 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5423b27090f3cf0121cc8887f927af7adf1f36a8d0cd9b6a020d1176d1eeff74 [2021-12-21 11:51:11,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:51:11,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:51:11,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:51:11,658 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:51:11,659 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:51:11,660 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/sin_interpolated_smallrange.c [2021-12-21 11:51:11,713 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e18ed5b4/00539070f951439db782bf67e78189fb/FLAGfdacf386a [2021-12-21 11:51:12,099 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:51:12,101 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/sin_interpolated_smallrange.c [2021-12-21 11:51:12,109 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e18ed5b4/00539070f951439db782bf67e78189fb/FLAGfdacf386a [2021-12-21 11:51:12,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e18ed5b4/00539070f951439db782bf67e78189fb [2021-12-21 11:51:12,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:51:12,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:51:12,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:51:12,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:51:12,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:51:12,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:51:12" (1/1) ... [2021-12-21 11:51:12,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a05f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:12, skipping insertion in model container [2021-12-21 11:51:12,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:51:12" (1/1) ... [2021-12-21 11:51:12,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:51:12,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:51:12,306 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/sin_interpolated_smallrange.c[686,699] [2021-12-21 11:51:12,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:51:12,394 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:51:12,413 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/sin_interpolated_smallrange.c[686,699] [2021-12-21 11:51:12,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:51:12,482 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:51:12,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:12 WrapperNode [2021-12-21 11:51:12,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:51:12,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:51:12,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:51:12,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:51:12,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:12" (1/1) ... [2021-12-21 11:51:12,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:12" (1/1) ... [2021-12-21 11:51:12,544 INFO L137 Inliner]: procedures = 21, calls = 381, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 413 [2021-12-21 11:51:12,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:51:12,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:51:12,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:51:12,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:51:12,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:12" (1/1) ... [2021-12-21 11:51:12,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:12" (1/1) ... [2021-12-21 11:51:12,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:12" (1/1) ... [2021-12-21 11:51:12,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:12" (1/1) ... [2021-12-21 11:51:12,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:12" (1/1) ... [2021-12-21 11:51:12,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:12" (1/1) ... [2021-12-21 11:51:12,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:12" (1/1) ... [2021-12-21 11:51:12,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:51:12,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:51:12,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:51:12,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:51:12,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:12" (1/1) ... [2021-12-21 11:51:12,591 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:51:12,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:51:12,624 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 11:51:12,642 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 11:51:12,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:51:12,649 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_POS [2021-12-21 11:51:12,650 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_POS [2021-12-21 11:51:12,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 11:51:12,650 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_0_180 [2021-12-21 11:51:12,650 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_0_180 [2021-12-21 11:51:12,654 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_180 [2021-12-21 11:51:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_180 [2021-12-21 11:51:12,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-21 11:51:12,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:51:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:51:12,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-21 11:51:12,726 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:51:12,727 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:51:13,055 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:51:13,066 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:51:13,067 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 11:51:13,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:51:13 BoogieIcfgContainer [2021-12-21 11:51:13,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:51:13,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:51:13,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:51:13,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:51:13,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:51:12" (1/3) ... [2021-12-21 11:51:13,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f48d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:51:13, skipping insertion in model container [2021-12-21 11:51:13,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:12" (2/3) ... [2021-12-21 11:51:13,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f48d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:51:13, skipping insertion in model container [2021-12-21 11:51:13,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:51:13" (3/3) ... [2021-12-21 11:51:13,074 INFO L111 eAbstractionObserver]: Analyzing ICFG sin_interpolated_smallrange.c [2021-12-21 11:51:13,078 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:51:13,078 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 11:51:13,112 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:51:13,116 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 11:51:13,116 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 11:51:13,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-21 11:51:13,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-21 11:51:13,129 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:51:13,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:51:13,130 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:51:13,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:51:13,134 INFO L85 PathProgramCache]: Analyzing trace with hash 2073759057, now seen corresponding path program 1 times [2021-12-21 11:51:13,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:51:13,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936001551] [2021-12-21 11:51:13,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:51:13,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:51:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:51:13,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 11:51:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:51:13,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 11:51:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:51:13,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 11:51:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:51:13,397 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 11:51:13,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:51:13,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936001551] [2021-12-21 11:51:13,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936001551] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:51:13,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:51:13,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 11:51:13,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192477324] [2021-12-21 11:51:13,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:51:13,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 11:51:13,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:51:13,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 11:51:13,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:51:13,437 INFO L87 Difference]: Start difference. First operand has 39 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-21 11:51:13,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:51:13,454 INFO L93 Difference]: Finished difference Result 76 states and 94 transitions. [2021-12-21 11:51:13,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 11:51:13,457 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2021-12-21 11:51:13,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:51:13,462 INFO L225 Difference]: With dead ends: 76 [2021-12-21 11:51:13,462 INFO L226 Difference]: Without dead ends: 35 [2021-12-21 11:51:13,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 11:51:13,467 INFO L933 BasicCegarLoop]: 45 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, 45 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 11:51:13,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:51:13,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-12-21 11:51:13,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-12-21 11:51:13,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-21 11:51:13,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2021-12-21 11:51:13,497 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 26 [2021-12-21 11:51:13,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:51:13,497 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2021-12-21 11:51:13,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-21 11:51:13,498 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2021-12-21 11:51:13,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-21 11:51:13,500 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:51:13,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:51:13,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 11:51:13,501 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:51:13,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:51:13,502 INFO L85 PathProgramCache]: Analyzing trace with hash 238599315, now seen corresponding path program 1 times [2021-12-21 11:51:13,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:51:13,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595568427] [2021-12-21 11:51:13,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:51:13,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:51:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:51:13,606 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 11:51:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:51:13,663 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 11:51:13,664 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 11:51:13,665 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 11:51:13,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 11:51:13,670 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-21 11:51:13,672 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 11:51:13,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:51:13 BoogieIcfgContainer [2021-12-21 11:51:13,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 11:51:13,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 11:51:13,695 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 11:51:13,695 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 11:51:13,695 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:51:13" (3/4) ... [2021-12-21 11:51:13,697 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 11:51:13,697 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 11:51:13,697 INFO L158 Benchmark]: Toolchain (without parser) took 1573.84ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 65.2MB in the beginning and 94.1MB in the end (delta: -29.0MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2021-12-21 11:51:13,698 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:51:13,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.90ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 64.8MB in the beginning and 102.2MB in the end (delta: -37.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 11:51:13,698 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.86ms. Allocated memory is still 136.3MB. Free memory was 102.2MB in the beginning and 97.5MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-21 11:51:13,699 INFO L158 Benchmark]: Boogie Preprocessor took 36.77ms. Allocated memory is still 136.3MB. Free memory was 97.5MB in the beginning and 94.3MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:51:13,699 INFO L158 Benchmark]: RCFGBuilder took 482.69ms. Allocated memory is still 136.3MB. Free memory was 94.3MB in the beginning and 73.1MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-21 11:51:13,700 INFO L158 Benchmark]: TraceAbstraction took 625.12ms. Allocated memory is still 136.3MB. Free memory was 72.3MB in the beginning and 94.8MB in the end (delta: -22.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:51:13,700 INFO L158 Benchmark]: Witness Printer took 2.27ms. Allocated memory is still 136.3MB. Free memory was 94.8MB in the beginning and 94.1MB in the end (delta: 696.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:51:13,702 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 356.90ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 64.8MB in the beginning and 102.2MB in the end (delta: -37.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.86ms. Allocated memory is still 136.3MB. Free memory was 102.2MB in the beginning and 97.5MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.77ms. Allocated memory is still 136.3MB. Free memory was 97.5MB in the beginning and 94.3MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 482.69ms. Allocated memory is still 136.3MB. Free memory was 94.3MB in the beginning and 73.1MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 625.12ms. Allocated memory is still 136.3MB. Free memory was 72.3MB in the beginning and 94.8MB in the end (delta: -22.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.27ms. Allocated memory is still 136.3MB. Free memory was 94.8MB in the beginning and 94.1MB in the end (delta: 696.3kB). 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: 17]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 121, overapproximation of someUnaryDOUBLEoperation at line 142, overapproximation of someBinaryArithmeticDOUBLEoperation at line 120, overapproximation of someBinaryDOUBLEComparisonOperation at line 156, overapproximation of to_real at line 122. Possible FailurePath: [L20-L112] const double T[362] = { 0.00000000000000, 0.01745240643728, 0.03489949670250, 0.05233595624294, 0.06975647374413, 0.08715574274766, 0.10452846326765, 0.12186934340515, 0.13917310096007, 0.15643446504023, 0.17364817766693, 0.19080899537654, 0.20791169081776, 0.22495105434386, 0.24192189559967, 0.25881904510252, 0.27563735581700, 0.29237170472274, 0.30901699437495, 0.32556815445716, 0.34202014332567, 0.35836794954530, 0.37460659341591, 0.39073112848927, 0.40673664307580, 0.42261826174070, 0.43837114678908, 0.45399049973955, 0.46947156278589, 0.48480962024634, 0.50000000000000, 0.51503807491005, 0.52991926423320, 0.54463903501503, 0.55919290347075, 0.57357643635105, 0.58778525229247, 0.60181502315205, 0.61566147532566, 0.62932039104984, 0.64278760968654, 0.65605902899051, 0.66913060635886, 0.68199836006250, 0.69465837045900, 0.70710678118655, 0.71933980033865, 0.73135370161917, 0.74314482547739, 0.75470958022277, 0.76604444311898, 0.77714596145697, 0.78801075360672, 0.79863551004729, 0.80901699437495, 0.81915204428899, 0.82903757255504, 0.83867056794542, 0.84804809615643, 0.85716730070211, 0.86602540378444, 0.87461970713940, 0.88294759285893, 0.89100652418837, 0.89879404629917, 0.90630778703665, 0.91354545764260, 0.92050485345244, 0.92718385456679, 0.93358042649720, 0.93969262078591, 0.94551857559932, 0.95105651629515, 0.95630475596304, 0.96126169593832, 0.96592582628907, 0.97029572627600, 0.97437006478524, 0.97814760073381, 0.98162718344766, 0.98480775301221, 0.98768834059514, 0.99026806874157, 0.99254615164132, 0.99452189536827, 0.99619469809175, 0.99756405025982, 0.99862953475457, 0.99939082701910, 0.99984769515639, 1.00000000000000, 0.99984769515639, 0.99939082701910, 0.99862953475457, 0.99756405025982, 0.99619469809175, 0.99452189536827, 0.99254615164132, 0.99026806874157, 0.98768834059514, 0.98480775301221, 0.98162718344766, 0.97814760073381, 0.97437006478524, 0.97029572627600, 0.96592582628907, 0.96126169593832, 0.95630475596304, 0.95105651629515, 0.94551857559932, 0.93969262078591, 0.93358042649720, 0.92718385456679, 0.92050485345244, 0.91354545764260, 0.90630778703665, 0.89879404629917, 0.89100652418837, 0.88294759285893, 0.87461970713940, 0.86602540378444, 0.85716730070211, 0.84804809615643, 0.83867056794542, 0.82903757255504, 0.81915204428899, 0.80901699437495, 0.79863551004729, 0.78801075360672, 0.77714596145697, 0.76604444311898, 0.75470958022277, 0.74314482547739, 0.73135370161917, 0.71933980033865, 0.70710678118655, 0.69465837045900, 0.68199836006250, 0.66913060635886, 0.65605902899051, 0.64278760968654, 0.62932039104984, 0.61566147532566, 0.60181502315205, 0.58778525229247, 0.57357643635105, 0.55919290347075, 0.54463903501503, 0.52991926423320, 0.51503807491005, 0.50000000000000, 0.48480962024634, 0.46947156278589, 0.45399049973955, 0.43837114678908, 0.42261826174070, 0.40673664307580, 0.39073112848927, 0.37460659341591, 0.35836794954530, 0.34202014332567, 0.32556815445716, 0.30901699437495, 0.29237170472274, 0.27563735581700, 0.25881904510252, 0.24192189559967, 0.22495105434387, 0.20791169081776, 0.19080899537654, 0.17364817766693, 0.15643446504023, 0.13917310096007, 0.12186934340515, 0.10452846326765, 0.08715574274766, 0.06975647374413, 0.05233595624294, 0.03489949670250, 0.01745240643728, 0.00000000000000, -0.01745240643728, -0.03489949670250, -0.05233595624294, -0.06975647374412, -0.08715574274766, -0.10452846326765, -0.12186934340515, -0.13917310096007, -0.15643446504023, -0.17364817766693, -0.19080899537654, -0.20791169081776, -0.22495105434386, -0.24192189559967, -0.25881904510252, -0.27563735581700, -0.29237170472274, -0.30901699437495, -0.32556815445716, -0.34202014332567, -0.35836794954530, -0.37460659341591, -0.39073112848927, -0.40673664307580, -0.42261826174070, -0.43837114678908, -0.45399049973955, -0.46947156278589, -0.48480962024634, -0.50000000000000, -0.51503807491005, -0.52991926423320, -0.54463903501503, -0.55919290347075, -0.57357643635105, -0.58778525229247, -0.60181502315205, -0.61566147532566, -0.62932039104984, -0.64278760968654, -0.65605902899051, -0.66913060635886, -0.68199836006250, -0.69465837045900, -0.70710678118655, -0.71933980033865, -0.73135370161917, -0.74314482547739, -0.75470958022277, -0.76604444311898, -0.77714596145697, -0.78801075360672, -0.79863551004729, -0.80901699437495, -0.81915204428899, -0.82903757255504, -0.83867056794542, -0.84804809615643, -0.85716730070211, -0.86602540378444, -0.87461970713940, -0.88294759285893, -0.89100652418837, -0.89879404629917, -0.90630778703665, -0.91354545764260, -0.92050485345244, -0.92718385456679, -0.93358042649720, -0.93969262078591, -0.94551857559932, -0.95105651629515, -0.95630475596304, -0.96126169593832, -0.96592582628907, -0.97029572627600, -0.97437006478524, -0.97814760073381, -0.98162718344766, -0.98480775301221, -0.98768834059514, -0.99026806874157, -0.99254615164132, -0.99452189536827, -0.99619469809175, -0.99756405025982, -0.99862953475457, -0.99939082701910, -0.99984769515639, -1.00000000000000, -0.99984769515639, -0.99939082701910, -0.99862953475457, -0.99756405025982, -0.99619469809175, -0.99452189536827, -0.99254615164132, -0.99026806874157, -0.98768834059514, -0.98480775301221, -0.98162718344766, -0.97814760073381, -0.97437006478524, -0.97029572627600, -0.96592582628907, -0.96126169593832, -0.95630475596304, -0.95105651629515, -0.94551857559932, -0.93969262078591, -0.93358042649720, -0.92718385456679, -0.92050485345244, -0.91354545764260, -0.90630778703665, -0.89879404629917, -0.89100652418837, -0.88294759285893, -0.87461970713940, -0.86602540378444, -0.85716730070211, -0.84804809615643, -0.83867056794542, -0.82903757255504, -0.81915204428899, -0.80901699437495, -0.79863551004729, -0.78801075360672, -0.77714596145697, -0.76604444311898, -0.75470958022277, -0.74314482547739, -0.73135370161917, -0.71933980033865, -0.70710678118655, -0.69465837045900, -0.68199836006250, -0.66913060635886, -0.65605902899051, -0.64278760968654, -0.62932039104984, -0.61566147532566, -0.60181502315205, -0.58778525229247, -0.57357643635105, -0.55919290347075, -0.54463903501503, -0.52991926423321, -0.51503807491005, -0.50000000000000, -0.48480962024634, -0.46947156278589, -0.45399049973955, -0.43837114678908, -0.42261826174070, -0.40673664307580, -0.39073112848927, -0.37460659341591, -0.35836794954530, -0.34202014332567, -0.32556815445716, -0.30901699437495, -0.29237170472274, -0.27563735581700, -0.25881904510252, -0.24192189559967, -0.22495105434387, -0.20791169081776, -0.19080899537654, -0.17364817766693, -0.15643446504023, -0.13917310096007, -0.12186934340515, -0.10452846326765, -0.08715574274766, -0.06975647374413, -0.05233595624294, -0.03489949670250, -0.01745240643728, 0, 0 }; VAL [T={4:0}] [L148] double a, aa, r; [L150] a = -720 VAL [T={4:0}] [L150] COND TRUE a <= 720 [L151] aa = __VERIFIER_nondet_double() [L152] CALL assume_abort_if_not(aa >= a+0.1 && aa <= a+0.9) [L15] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, T={4:0}] [L152] RET assume_abort_if_not(aa >= a+0.1 && aa <= a+0.9) [L154] CALL, EXPR SIN(aa) [L142] COND TRUE x<0 VAL [\old(x)=2899, T={4:0}, x=2899] [L142] CALL, EXPR SIN_POS(-x) VAL [T={4:0}] [L136] COND FALSE !(x>180) VAL [\old(x)=2901, T={4:0}, x=2901] [L137] CALL, EXPR SIN_180(x) VAL [\old(x)=2901, T={4:0}] [L130] COND TRUE x<0 VAL [\old(x)=2901, T={4:0}, x=2901] [L130] CALL, EXPR SIN_0_180(-x) VAL [T={4:0}] [L117] double dx, i_dx, v_inf; [L118] double v_sup; [L119] int i; [L120] dx = 2*x [L121] i = dx [L122] i_dx = i [L123] EXPR T[i] [L123] v_inf = T[i] [L124] EXPR T[i+1] [L124] v_sup = T[i+1] [L125] return v_inf + (dx - i_dx) * (v_sup - v_inf); VAL [\old(x)=2897, i=-2, T={4:0}, v_inf=2902, v_sup=2898, x=2897] [L130] RET, EXPR SIN_0_180(-x) VAL [\old(x)=2901, SIN_0_180(-x)=2903, T={4:0}, x=2901] [L130] return -SIN_0_180(-x); [L137] RET, EXPR SIN_180(x) VAL [\old(x)=2901, SIN_180(x)=2904, T={4:0}, x=2901] [L137] return SIN_180(x); [L142] RET, EXPR SIN_POS(-x) VAL [\old(x)=2899, SIN_POS(-x)=2904, T={4:0}, x=2899] [L142] return -SIN_POS(-x); [L154] RET, EXPR SIN(aa) [L154] r = SIN(aa) [L156] CALL __VERIFIER_assert(r >= -1.1 && r <= 1.1) [L17] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, T={4:0}] [L17] reach_error() VAL [\old(cond)=0, cond=0, T={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 45 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, 45 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 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 11:51:13,729 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/sin_interpolated_smallrange.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 5423b27090f3cf0121cc8887f927af7adf1f36a8d0cd9b6a020d1176d1eeff74 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:51:15,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:51:15,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:51:15,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:51:15,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:51:15,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:51:15,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:51:15,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:51:15,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:51:15,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:51:15,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:51:15,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:51:15,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:51:15,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:51:15,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:51:15,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:51:15,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:51:15,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:51:15,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:51:15,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:51:15,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:51:15,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:51:15,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:51:15,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:51:15,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:51:15,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:51:15,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:51:15,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:51:15,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:51:15,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:51:15,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:51:15,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:51:15,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:51:15,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:51:15,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:51:15,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:51:15,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:51:15,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:51:15,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:51:15,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:51:15,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:51:15,483 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-21 11:51:15,498 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:51:15,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:51:15,498 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:51:15,498 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:51:15,499 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:51:15,499 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:51:15,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:51:15,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:51:15,500 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:51:15,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:51:15,500 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:51:15,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:51:15,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:51:15,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:51:15,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:51:15,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:51:15,501 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 11:51:15,501 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-21 11:51:15,501 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-21 11:51:15,501 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:51:15,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:51:15,502 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:51:15,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:51:15,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:51:15,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:51:15,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:51:15,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:51:15,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:51:15,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:51:15,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:51:15,509 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-21 11:51:15,510 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-21 11:51:15,510 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:51:15,510 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:51:15,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:51:15,510 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:51:15,510 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-21 11:51:15,510 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5423b27090f3cf0121cc8887f927af7adf1f36a8d0cd9b6a020d1176d1eeff74 [2021-12-21 11:51:15,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:51:15,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:51:15,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:51:15,807 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:51:15,808 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:51:15,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/sin_interpolated_smallrange.c [2021-12-21 11:51:15,850 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f71a91c6/896d1a71dc1246768b726c375152a608/FLAGfde9aecf1 [2021-12-21 11:51:16,210 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:51:16,211 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/sin_interpolated_smallrange.c [2021-12-21 11:51:16,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f71a91c6/896d1a71dc1246768b726c375152a608/FLAGfde9aecf1 [2021-12-21 11:51:16,227 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f71a91c6/896d1a71dc1246768b726c375152a608 [2021-12-21 11:51:16,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:51:16,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:51:16,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:51:16,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:51:16,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:51:16,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:51:16" (1/1) ... [2021-12-21 11:51:16,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e9b523d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:16, skipping insertion in model container [2021-12-21 11:51:16,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:51:16" (1/1) ... [2021-12-21 11:51:16,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:51:16,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:51:16,345 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/sin_interpolated_smallrange.c[686,699] [2021-12-21 11:51:16,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:51:16,455 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:51:16,469 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/sin_interpolated_smallrange.c[686,699] [2021-12-21 11:51:16,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:51:16,542 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:51:16,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:16 WrapperNode [2021-12-21 11:51:16,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:51:16,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:51:16,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:51:16,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:51:16,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:16" (1/1) ... [2021-12-21 11:51:16,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:16" (1/1) ... [2021-12-21 11:51:16,608 INFO L137 Inliner]: procedures = 22, calls = 381, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 414 [2021-12-21 11:51:16,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:51:16,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:51:16,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:51:16,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:51:16,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:16" (1/1) ... [2021-12-21 11:51:16,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:16" (1/1) ... [2021-12-21 11:51:16,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:16" (1/1) ... [2021-12-21 11:51:16,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:16" (1/1) ... [2021-12-21 11:51:16,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:16" (1/1) ... [2021-12-21 11:51:16,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:16" (1/1) ... [2021-12-21 11:51:16,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:16" (1/1) ... [2021-12-21 11:51:16,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:51:16,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:51:16,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:51:16,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:51:16,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:16" (1/1) ... [2021-12-21 11:51:16,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:51:16,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:51:16,717 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 11:51:16,725 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 11:51:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:51:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-21 11:51:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_POS [2021-12-21 11:51:16,752 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_POS [2021-12-21 11:51:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-21 11:51:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_0_180 [2021-12-21 11:51:16,753 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_0_180 [2021-12-21 11:51:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_180 [2021-12-21 11:51:16,753 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_180 [2021-12-21 11:51:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-12-21 11:51:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:51:16,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:51:16,826 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:51:16,827 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:51:20,349 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:51:20,353 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:51:20,353 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 11:51:20,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:51:20 BoogieIcfgContainer [2021-12-21 11:51:20,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:51:20,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:51:20,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:51:20,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:51:20,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:51:16" (1/3) ... [2021-12-21 11:51:20,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3825c3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:51:20, skipping insertion in model container [2021-12-21 11:51:20,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:16" (2/3) ... [2021-12-21 11:51:20,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3825c3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:51:20, skipping insertion in model container [2021-12-21 11:51:20,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:51:20" (3/3) ... [2021-12-21 11:51:20,358 INFO L111 eAbstractionObserver]: Analyzing ICFG sin_interpolated_smallrange.c [2021-12-21 11:51:20,377 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:51:20,378 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 11:51:20,423 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:51:20,436 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 11:51:20,436 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 11:51:20,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-21 11:51:20,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-21 11:51:20,462 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:51:20,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:51:20,463 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:51:20,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:51:20,471 INFO L85 PathProgramCache]: Analyzing trace with hash 2073759057, now seen corresponding path program 1 times [2021-12-21 11:51:20,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:51:20,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102234505] [2021-12-21 11:51:20,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:51:20,486 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:51:20,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:51:20,488 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 11:51:20,489 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 11:51:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:51:23,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-21 11:51:23,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:51:23,365 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 11:51:23,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:51:23,366 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 11:51:23,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102234505] [2021-12-21 11:51:23,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102234505] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:51:23,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:51:23,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 11:51:23,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315832673] [2021-12-21 11:51:23,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:51:23,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 11:51:23,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 11:51:23,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 11:51:23,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:51:23,390 INFO L87 Difference]: Start difference. First operand has 39 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 11:51:23,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:51:23,402 INFO L93 Difference]: Finished difference Result 76 states and 94 transitions. [2021-12-21 11:51:23,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 11:51:23,404 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2021-12-21 11:51:23,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:51:23,408 INFO L225 Difference]: With dead ends: 76 [2021-12-21 11:51:23,409 INFO L226 Difference]: Without dead ends: 35 [2021-12-21 11:51:23,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 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 11:51:23,413 INFO L933 BasicCegarLoop]: 45 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, 45 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 11:51:23,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:51:23,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-12-21 11:51:23,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-12-21 11:51:23,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-21 11:51:23,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2021-12-21 11:51:23,438 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 26 [2021-12-21 11:51:23,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:51:23,438 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2021-12-21 11:51:23,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 11:51:23,438 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2021-12-21 11:51:23,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-21 11:51:23,439 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:51:23,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:51:23,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-21 11:51:23,640 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 11:51:23,641 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:51:23,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:51:23,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1300246029, now seen corresponding path program 1 times [2021-12-21 11:51:23,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:51:23,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5824451] [2021-12-21 11:51:23,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:51:23,644 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:51:23,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:51:23,645 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 11:51:23,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-21 11:51:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:51:26,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-21 11:51:26,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:51:28,627 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 11:51:28,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:51:28,627 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 11:51:28,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [5824451] [2021-12-21 11:51:28,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [5824451] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:51:28,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:51:28,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 11:51:28,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684714995] [2021-12-21 11:51:28,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:51:28,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 11:51:28,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 11:51:28,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 11:51:28,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-21 11:51:28,630 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-21 11:51:35,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-21 11:51:37,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-21 11:51:39,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-21 11:51:41,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-21 11:51:43,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-21 11:51:45,220 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-21 11:51:47,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 11:51:50,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-21 11:51:52,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:51:52,681 INFO L93 Difference]: Finished difference Result 87 states and 104 transitions. [2021-12-21 11:51:52,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-21 11:51:52,683 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2021-12-21 11:51:52,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:51:52,684 INFO L225 Difference]: With dead ends: 87 [2021-12-21 11:51:52,684 INFO L226 Difference]: Without dead ends: 54 [2021-12-21 11:51:52,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-12-21 11:51:52,686 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 65 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 12 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2021-12-21 11:51:52,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 119 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 172 Invalid, 8 Unknown, 0 Unchecked, 20.6s Time] [2021-12-21 11:51:52,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-12-21 11:51:52,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 44. [2021-12-21 11:51:52,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 32 states have (on average 1.125) internal successors, (36), 33 states have internal predecessors, (36), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 7 states have call successors, (9) [2021-12-21 11:51:52,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2021-12-21 11:51:52,697 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 26 [2021-12-21 11:51:52,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:51:52,698 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2021-12-21 11:51:52,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-21 11:51:52,698 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2021-12-21 11:51:52,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-21 11:51:52,700 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:51:52,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:51:52,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-21 11:51:52,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 11:51:52,920 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:51:52,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:51:52,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1329967437, now seen corresponding path program 1 times [2021-12-21 11:51:52,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:51:52,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1846391564] [2021-12-21 11:51:52,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:51:52,923 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:51:52,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:51:52,924 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-21 11:51:52,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-21 11:52:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:52:03,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 42 conjunts are in the unsatisfiable core [2021-12-21 11:52:03,852 INFO L286 TraceCheckSpWp]: Computing forward predicates...