./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/sine_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/sine_1.i -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 853868a88f6c6643cd6d627e66ad7d81e22e5804 ........................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/sine_1.i -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 853868a88f6c6643cd6d627e66ad7d81e22e5804 ........................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:00:58,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:00:58,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:00:58,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:00:58,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:00:58,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:00:58,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:00:58,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:00:58,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:00:58,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:00:58,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:00:58,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:00:58,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:00:58,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:00:58,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:00:58,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:00:58,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:00:58,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:00:58,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:00:58,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:00:58,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:00:58,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:00:58,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:00:58,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:00:58,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:00:58,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:00:58,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:00:58,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:00:58,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:00:58,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:00:58,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:00:58,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:00:58,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:00:58,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:00:58,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:00:58,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:00:58,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:00:58,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:00:58,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:00:58,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:00:58,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:00:58,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 14:00:58,601 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:00:58,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:00:58,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:00:58,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:00:58,606 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:00:58,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:00:58,607 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:00:58,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:00:58,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:00:58,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:00:58,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:00:58,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:00:58,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:00:58,610 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:00:58,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:00:58,610 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:00:58,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:00:58,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:00:58,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:00:58,611 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:00:58,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:00:58,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:00:58,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:00:58,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:00:58,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:00:58,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:00:58,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:00:58,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:00:58,614 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:00:58,614 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 853868a88f6c6643cd6d627e66ad7d81e22e5804 [2020-10-24 14:00:59,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:00:59,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:00:59,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:00:59,201 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:00:59,202 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:00:59,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/sine_1.i [2020-10-24 14:00:59,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c7b3164d/309e4f4c0bce49c4a28149a6cb6d284e/FLAGe01c2ecee [2020-10-24 14:00:59,946 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:00:59,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_1.i [2020-10-24 14:00:59,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c7b3164d/309e4f4c0bce49c4a28149a6cb6d284e/FLAGe01c2ecee [2020-10-24 14:01:00,289 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c7b3164d/309e4f4c0bce49c4a28149a6cb6d284e [2020-10-24 14:01:00,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:01:00,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:01:00,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:01:00,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:01:00,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:01:00,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:01:00" (1/1) ... [2020-10-24 14:01:00,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25378d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:00, skipping insertion in model container [2020-10-24 14:01:00,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:01:00" (1/1) ... [2020-10-24 14:01:00,319 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:01:00,335 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:01:00,543 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:01:00,553 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:01:00,572 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:01:00,588 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:01:00,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:00 WrapperNode [2020-10-24 14:01:00,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:01:00,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:01:00,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:01:00,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:01:00,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:00" (1/1) ... [2020-10-24 14:01:00,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:00" (1/1) ... [2020-10-24 14:01:00,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:01:00,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:01:00,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:01:00,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:01:00,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:00" (1/1) ... [2020-10-24 14:01:00,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:00" (1/1) ... [2020-10-24 14:01:00,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:00" (1/1) ... [2020-10-24 14:01:00,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:00" (1/1) ... [2020-10-24 14:01:00,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:00" (1/1) ... [2020-10-24 14:01:00,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:00" (1/1) ... [2020-10-24 14:01:00,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:00" (1/1) ... [2020-10-24 14:01:00,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:01:00,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:01:00,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:01:00,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:01:00,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:01:00,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 14:01:00,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:01:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:01:00,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:01:00,923 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:01:00,923 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-24 14:01:00,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:01:00 BoogieIcfgContainer [2020-10-24 14:01:00,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:01:00,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:01:00,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:01:00,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:01:00,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:01:00" (1/3) ... [2020-10-24 14:01:00,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c3c658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:01:00, skipping insertion in model container [2020-10-24 14:01:00,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:00" (2/3) ... [2020-10-24 14:01:00,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c3c658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:01:00, skipping insertion in model container [2020-10-24 14:01:00,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:01:00" (3/3) ... [2020-10-24 14:01:00,936 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_1.i [2020-10-24 14:01:00,952 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:01:00,957 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:01:00,974 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:01:01,006 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:01:01,006 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:01:01,006 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:01:01,007 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:01:01,007 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:01:01,007 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:01:01,007 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:01:01,008 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:01:01,025 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-10-24 14:01:01,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 14:01:01,040 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:01:01,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:01:01,042 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:01:01,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:01:01,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-10-24 14:01:01,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:01:01,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179840281] [2020-10-24 14:01:01,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:01:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:01:01,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:01:01,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179840281] [2020-10-24 14:01:01,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:01:01,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 14:01:01,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018890796] [2020-10-24 14:01:01,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 14:01:01,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 14:01:01,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 14:01:01,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 14:01:01,323 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2020-10-24 14:01:01,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:01:01,344 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2020-10-24 14:01:01,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 14:01:01,347 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-10-24 14:01:01,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:01:01,358 INFO L225 Difference]: With dead ends: 21 [2020-10-24 14:01:01,358 INFO L226 Difference]: Without dead ends: 8 [2020-10-24 14:01:01,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 14:01:01,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-10-24 14:01:01,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-10-24 14:01:01,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-24 14:01:01,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-10-24 14:01:01,419 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2020-10-24 14:01:01,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:01:01,419 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-10-24 14:01:01,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 14:01:01,420 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-10-24 14:01:01,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 14:01:01,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:01:01,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:01:01,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 14:01:01,422 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:01:01,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:01:01,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-10-24 14:01:01,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:01:01,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165781449] [2020-10-24 14:01:01,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:01:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:01:01,480 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:01:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:01:01,506 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:01:01,530 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 14:01:01,530 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 14:01:01,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 14:01:01,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:01:01 BoogieIcfgContainer [2020-10-24 14:01:01,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:01:01,581 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:01:01,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:01:01,581 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:01:01,582 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:01:00" (3/4) ... [2020-10-24 14:01:01,587 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 14:01:01,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:01:01,591 INFO L168 Benchmark]: Toolchain (without parser) took 1294.53 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.9 MB in the beginning and 41.9 MB in the end (delta: -17.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:01:01,593 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 39.8 MB. Free memory was 17.8 MB in the beginning and 17.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:01:01,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.94 ms. Allocated memory is still 48.2 MB. Free memory was 24.2 MB in the beginning and 25.8 MB in the end (delta: -1.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2020-10-24 14:01:01,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.54 ms. Allocated memory is still 48.2 MB. Free memory was 25.8 MB in the beginning and 24.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:01:01,596 INFO L168 Benchmark]: Boogie Preprocessor took 19.62 ms. Allocated memory is still 48.2 MB. Free memory was 24.3 MB in the beginning and 23.3 MB in the end (delta: 937.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:01:01,598 INFO L168 Benchmark]: RCFGBuilder took 280.14 ms. Allocated memory is still 48.2 MB. Free memory was 23.3 MB in the beginning and 24.6 MB in the end (delta: -1.3 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-10-24 14:01:01,599 INFO L168 Benchmark]: TraceAbstraction took 652.50 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.3 MB in the beginning and 42.2 MB in the end (delta: -17.9 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-10-24 14:01:01,600 INFO L168 Benchmark]: Witness Printer took 6.74 ms. Allocated memory is still 58.7 MB. Free memory was 42.2 MB in the beginning and 41.9 MB in the end (delta: 322.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:01:01,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 39.8 MB. Free memory was 17.8 MB in the beginning and 17.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 287.94 ms. Allocated memory is still 48.2 MB. Free memory was 24.2 MB in the beginning and 25.8 MB in the end (delta: -1.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.54 ms. Allocated memory is still 48.2 MB. Free memory was 25.8 MB in the beginning and 24.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.62 ms. Allocated memory is still 48.2 MB. Free memory was 24.3 MB in the beginning and 23.3 MB in the end (delta: 937.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 280.14 ms. Allocated memory is still 48.2 MB. Free memory was 23.3 MB in the beginning and 24.6 MB in the end (delta: -1.3 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 652.50 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.3 MB in the beginning and 42.2 MB in the end (delta: -17.9 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * Witness Printer took 6.74 ms. Allocated memory is still 58.7 MB. Free memory was 42.2 MB in the beginning and 41.9 MB in the end (delta: 322.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAT_SMToperation at line 25, overapproximation of someBinaryDOUBLE_SMTComparisonOperation at line 27, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 21. Possible FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 0.99 && result >= -0.99) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "sine_1.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:01:04,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:01:04,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:01:04,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:01:04,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:01:04,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:01:04,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:01:04,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:01:04,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:01:04,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:01:04,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:01:04,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:01:04,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:01:04,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:01:04,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:01:04,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:01:04,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:01:04,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:01:04,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:01:04,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:01:04,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:01:04,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:01:04,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:01:04,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:01:04,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:01:04,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:01:04,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:01:04,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:01:04,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:01:04,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:01:04,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:01:04,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:01:04,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:01:04,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:01:04,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:01:04,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:01:04,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:01:04,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:01:04,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:01:04,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:01:04,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:01:04,427 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 14:01:04,485 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:01:04,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:01:04,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:01:04,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:01:04,490 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:01:04,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:01:04,491 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:01:04,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:01:04,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:01:04,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:01:04,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:01:04,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:01:04,493 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:01:04,494 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:01:04,494 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:01:04,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:01:04,495 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:01:04,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:01:04,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:01:04,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:01:04,496 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:01:04,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:01:04,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:01:04,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:01:04,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:01:04,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:01:04,498 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:01:04,498 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:01:04,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:01:04,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:01:04,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:01:04,499 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 853868a88f6c6643cd6d627e66ad7d81e22e5804 [2020-10-24 14:01:04,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:01:04,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:01:04,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:01:04,985 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:01:04,986 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:01:04,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/sine_1.i [2020-10-24 14:01:05,081 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1086d8cb8/3f750617562a4da8a260a65d3f3cbc0e/FLAG7b2aba683 [2020-10-24 14:01:05,670 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:01:05,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_1.i [2020-10-24 14:01:05,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1086d8cb8/3f750617562a4da8a260a65d3f3cbc0e/FLAG7b2aba683 [2020-10-24 14:01:06,052 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1086d8cb8/3f750617562a4da8a260a65d3f3cbc0e [2020-10-24 14:01:06,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:01:06,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:01:06,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:01:06,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:01:06,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:01:06,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:01:06" (1/1) ... [2020-10-24 14:01:06,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dfc300e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:06, skipping insertion in model container [2020-10-24 14:01:06,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:01:06" (1/1) ... [2020-10-24 14:01:06,089 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:01:06,106 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:01:06,332 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:01:06,351 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:01:06,379 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:01:06,408 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:01:06,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:06 WrapperNode [2020-10-24 14:01:06,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:01:06,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:01:06,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:01:06,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:01:06,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:06" (1/1) ... [2020-10-24 14:01:06,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:06" (1/1) ... [2020-10-24 14:01:06,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:01:06,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:01:06,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:01:06,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:01:06,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:06" (1/1) ... [2020-10-24 14:01:06,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:06" (1/1) ... [2020-10-24 14:01:06,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:06" (1/1) ... [2020-10-24 14:01:06,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:06" (1/1) ... [2020-10-24 14:01:06,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:06" (1/1) ... [2020-10-24 14:01:06,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:06" (1/1) ... [2020-10-24 14:01:06,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:06" (1/1) ... [2020-10-24 14:01:06,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:01:06,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:01:06,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:01:06,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:01:06,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:01:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-10-24 14:01:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 14:01:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:01:06,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:01:06,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:01:06,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-10-24 14:01:09,369 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:01:09,370 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-24 14:01:09,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:01:09 BoogieIcfgContainer [2020-10-24 14:01:09,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:01:09,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:01:09,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:01:09,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:01:09,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:01:06" (1/3) ... [2020-10-24 14:01:09,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a6207d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:01:09, skipping insertion in model container [2020-10-24 14:01:09,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:06" (2/3) ... [2020-10-24 14:01:09,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a6207d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:01:09, skipping insertion in model container [2020-10-24 14:01:09,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:01:09" (3/3) ... [2020-10-24 14:01:09,383 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_1.i [2020-10-24 14:01:09,396 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:01:09,401 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:01:09,415 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:01:09,446 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:01:09,447 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:01:09,447 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:01:09,447 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:01:09,447 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:01:09,448 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:01:09,448 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:01:09,448 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:01:09,465 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-10-24 14:01:09,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 14:01:09,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:01:09,473 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:01:09,474 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:01:09,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:01:09,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1236260206, now seen corresponding path program 1 times [2020-10-24 14:01:09,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:01:09,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803599060] [2020-10-24 14:01:09,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 14:01:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:01:11,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 14:01:11,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:01:11,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:01:11,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:01:11,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:01:11,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1803599060] [2020-10-24 14:01:11,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:01:11,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 14:01:11,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215721713] [2020-10-24 14:01:11,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 14:01:11,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:01:11,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 14:01:11,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 14:01:11,216 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2020-10-24 14:01:11,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:01:11,229 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2020-10-24 14:01:11,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 14:01:11,231 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 14:01:11,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:01:11,239 INFO L225 Difference]: With dead ends: 25 [2020-10-24 14:01:11,239 INFO L226 Difference]: Without dead ends: 11 [2020-10-24 14:01:11,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 14:01:11,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-24 14:01:11,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-24 14:01:11,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-24 14:01:11,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2020-10-24 14:01:11,275 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 10 [2020-10-24 14:01:11,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:01:11,276 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2020-10-24 14:01:11,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 14:01:11,276 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2020-10-24 14:01:11,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 14:01:11,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:01:11,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:01:11,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 14:01:11,488 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:01:11,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:01:11,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1179001904, now seen corresponding path program 1 times [2020-10-24 14:01:11,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:01:11,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190988680] [2020-10-24 14:01:11,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-24 14:02:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:02:14,505 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:02:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:02:24,892 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:02:25,117 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-24 14:02:25,118 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 14:02:25,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 14:02:25,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:02:25 BoogieIcfgContainer [2020-10-24 14:02:25,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:02:25,351 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:02:25,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:02:25,351 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:02:25,351 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:01:09" (3/4) ... [2020-10-24 14:02:25,354 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-24 14:02:25,398 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 14:02:25,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:02:25,402 INFO L168 Benchmark]: Toolchain (without parser) took 79341.42 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.8 MB in the beginning and 26.4 MB in the end (delta: -3.6 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2020-10-24 14:02:25,403 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 46.1 MB. Free memory was 27.6 MB in the beginning and 27.5 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:02:25,404 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.28 ms. Allocated memory is still 46.1 MB. Free memory was 22.2 MB in the beginning and 22.1 MB in the end (delta: 83.4 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-24 14:02:25,405 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.00 ms. Allocated memory is still 46.1 MB. Free memory was 22.1 MB in the beginning and 20.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:02:25,406 INFO L168 Benchmark]: Boogie Preprocessor took 69.44 ms. Allocated memory is still 46.1 MB. Free memory was 20.3 MB in the beginning and 18.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:02:25,407 INFO L168 Benchmark]: RCFGBuilder took 2793.10 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 18.8 MB in the beginning and 34.0 MB in the end (delta: -15.2 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2020-10-24 14:02:25,408 INFO L168 Benchmark]: TraceAbstraction took 75975.15 ms. Allocated memory is still 56.6 MB. Free memory was 33.5 MB in the beginning and 28.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-24 14:02:25,409 INFO L168 Benchmark]: Witness Printer took 48.48 ms. Allocated memory is still 56.6 MB. Free memory was 28.2 MB in the beginning and 26.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:02:25,415 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 46.1 MB. Free memory was 27.6 MB in the beginning and 27.5 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 340.28 ms. Allocated memory is still 46.1 MB. Free memory was 22.2 MB in the beginning and 22.1 MB in the end (delta: 83.4 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 97.00 ms. Allocated memory is still 46.1 MB. Free memory was 22.1 MB in the beginning and 20.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.44 ms. Allocated memory is still 46.1 MB. Free memory was 20.3 MB in the beginning and 18.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2793.10 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 18.8 MB in the beginning and 34.0 MB in the end (delta: -15.2 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 75975.15 ms. Allocated memory is still 56.6 MB. Free memory was 33.5 MB in the beginning and 28.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Witness Printer took 48.48 ms. Allocated memory is still 56.6 MB. Free memory was 28.2 MB in the beginning and 26.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L21] EXPR 1.57079632679f [L21] EXPR -1.57079632679f [L21] IN > -1.57079632679f && IN < 1.57079632679f [L21] EXPR 1.57079632679f [L21] IN > -1.57079632679f && IN < 1.57079632679f [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] EXPR x*x [L25] EXPR x*x*x [L25] EXPR 6.0f [L25] EXPR (x*x*x)/6.0f [L25] EXPR x - (x*x*x)/6.0f [L25] EXPR x*x [L25] EXPR x*x*x [L25] EXPR x*x*x*x [L25] EXPR x*x*x*x*x [L25] EXPR 120.0f [L25] EXPR (x*x*x*x*x)/120.0f [L25] EXPR x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f [L25] EXPR x*x [L25] EXPR x*x*x [L25] EXPR x*x*x*x [L25] EXPR x*x*x*x*x [L25] EXPR x*x*x*x*x*x [L25] EXPR x*x*x*x*x*x*x [L25] EXPR 5040.0f [L25] EXPR (x*x*x*x*x*x*x)/5040.0f [L25] EXPR x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] EXPR 0.99 [L27] EXPR result <= 0.99 && result >= -0.99 [L27] EXPR 0.99 [L27] EXPR -0.99 [L27] EXPR result <= 0.99 && result >= -0.99 [L27] COND TRUE !(result <= 0.99 && result >= -0.99) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "sine_1.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 75.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, 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, 64.4s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 proved your program to be incorrect! Received shutdown request...