./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/floats-cdfpl/sine_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cbb939d5 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 ../../../trunk/examples/svcomp/floats-cdfpl/sine_3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8f53d9ed7fe14462ecadf09af148bc11769a4a61 ........................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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 ../../../trunk/examples/svcomp/floats-cdfpl/sine_3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8f53d9ed7fe14462ecadf09af148bc11769a4a61 ....................................................................................................................................................................................................................................................................................... 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-cbb939d [2020-11-23 14:58:48,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-23 14:58:48,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-23 14:58:48,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-23 14:58:48,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-23 14:58:48,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-23 14:58:48,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-23 14:58:48,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-23 14:58:48,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-23 14:58:48,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-23 14:58:48,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-23 14:58:48,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-23 14:58:48,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-23 14:58:48,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-23 14:58:48,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-23 14:58:48,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-23 14:58:48,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-23 14:58:48,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-23 14:58:48,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-23 14:58:48,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-23 14:58:48,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-23 14:58:48,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-23 14:58:48,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-23 14:58:48,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-23 14:58:48,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-23 14:58:48,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-23 14:58:48,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-23 14:58:48,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-23 14:58:48,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-23 14:58:48,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-23 14:58:48,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-23 14:58:48,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-23 14:58:48,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-23 14:58:48,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-23 14:58:48,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-23 14:58:48,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-23 14:58:48,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-23 14:58:48,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-23 14:58:48,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-23 14:58:48,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-23 14:58:48,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-23 14:58:48,575 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-23 14:58:48,603 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-23 14:58:48,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-23 14:58:48,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-23 14:58:48,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-23 14:58:48,606 INFO L138 SettingsManager]: * Use SBE=true [2020-11-23 14:58:48,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-23 14:58:48,606 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-23 14:58:48,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-23 14:58:48,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-23 14:58:48,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-23 14:58:48,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-23 14:58:48,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-23 14:58:48,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-23 14:58:48,608 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-23 14:58:48,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-23 14:58:48,609 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-23 14:58:48,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-23 14:58:48,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-23 14:58:48,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-23 14:58:48,610 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-23 14:58:48,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-23 14:58:48,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-23 14:58:48,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-23 14:58:48,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-23 14:58:48,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-23 14:58:48,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-23 14:58:48,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-23 14:58:48,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-23 14:58:48,613 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-23 14:58:48,613 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f53d9ed7fe14462ecadf09af148bc11769a4a61 [2020-11-23 14:58:49,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-23 14:58:49,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-23 14:58:49,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-23 14:58:49,048 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-23 14:58:49,049 INFO L275 PluginConnector]: CDTParser initialized [2020-11-23 14:58:49,050 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/sine_3.i [2020-11-23 14:58:49,123 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad28aa80e/28b9ca83686d49699becef9303689f6b/FLAG1f7276737 [2020-11-23 14:58:49,651 INFO L306 CDTParser]: Found 1 translation units. [2020-11-23 14:58:49,651 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/sine_3.i [2020-11-23 14:58:49,659 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad28aa80e/28b9ca83686d49699becef9303689f6b/FLAG1f7276737 [2020-11-23 14:58:49,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad28aa80e/28b9ca83686d49699becef9303689f6b [2020-11-23 14:58:49,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-23 14:58:50,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-23 14:58:50,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-23 14:58:50,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-23 14:58:50,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-23 14:58:50,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:58:49" (1/1) ... [2020-11-23 14:58:50,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ceacdc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:50, skipping insertion in model container [2020-11-23 14:58:50,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:58:49" (1/1) ... [2020-11-23 14:58:50,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-23 14:58:50,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-23 14:58:50,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 14:58:50,313 INFO L203 MainTranslator]: Completed pre-run [2020-11-23 14:58:50,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 14:58:50,365 INFO L208 MainTranslator]: Completed translation [2020-11-23 14:58:50,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:50 WrapperNode [2020-11-23 14:58:50,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-23 14:58:50,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-23 14:58:50,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-23 14:58:50,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-23 14:58:50,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:50" (1/1) ... [2020-11-23 14:58:50,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:50" (1/1) ... [2020-11-23 14:58:50,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-23 14:58:50,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-23 14:58:50,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-23 14:58:50,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-23 14:58:50,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:50" (1/1) ... [2020-11-23 14:58:50,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:50" (1/1) ... [2020-11-23 14:58:50,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:50" (1/1) ... [2020-11-23 14:58:50,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:50" (1/1) ... [2020-11-23 14:58:50,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:50" (1/1) ... [2020-11-23 14:58:50,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:50" (1/1) ... [2020-11-23 14:58:50,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:50" (1/1) ... [2020-11-23 14:58:50,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-23 14:58:50,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-23 14:58:50,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-23 14:58:50,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-23 14:58:50,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-11-23 14:58:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-23 14:58:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-23 14:58:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-23 14:58:50,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-23 14:58:50,843 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-23 14:58:50,844 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-23 14:58:50,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:58:50 BoogieIcfgContainer [2020-11-23 14:58:50,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-23 14:58:50,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-23 14:58:50,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-23 14:58:50,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-23 14:58:50,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:58:49" (1/3) ... [2020-11-23 14:58:50,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7097520f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:58:50, skipping insertion in model container [2020-11-23 14:58:50,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:50" (2/3) ... [2020-11-23 14:58:50,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7097520f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:58:50, skipping insertion in model container [2020-11-23 14:58:50,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:58:50" (3/3) ... [2020-11-23 14:58:50,859 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_3.i [2020-11-23 14:58:50,879 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-23 14:58:50,883 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-23 14:58:50,902 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-23 14:58:50,941 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-23 14:58:50,942 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-23 14:58:50,944 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-23 14:58:50,944 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-23 14:58:50,945 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-23 14:58:50,945 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-23 14:58:50,945 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-23 14:58:50,946 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-23 14:58:50,978 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-11-23 14:58:50,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-23 14:58:50,991 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 14:58:50,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-23 14:58:50,993 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 14:58:50,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 14:58:51,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-11-23 14:58:51,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-23 14:58:51,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354912561] [2020-11-23 14:58:51,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-23 14:58:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 14:58:51,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 14:58:51,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354912561] [2020-11-23 14:58:51,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-23 14:58:51,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-23 14:58:51,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166967009] [2020-11-23 14:58:51,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-23 14:58:51,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-23 14:58:51,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-23 14:58:51,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-23 14:58:51,205 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2020-11-23 14:58:51,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 14:58:51,224 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2020-11-23 14:58:51,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-23 14:58:51,226 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-23 14:58:51,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 14:58:51,236 INFO L225 Difference]: With dead ends: 21 [2020-11-23 14:58:51,236 INFO L226 Difference]: Without dead ends: 8 [2020-11-23 14:58:51,240 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 [2020-11-23 14:58:51,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-11-23 14:58:51,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-11-23 14:58:51,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-23 14:58:51,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-11-23 14:58:51,278 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2020-11-23 14:58:51,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 14:58:51,279 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-11-23 14:58:51,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-23 14:58:51,279 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-11-23 14:58:51,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-23 14:58:51,280 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 14:58:51,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-23 14:58:51,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-23 14:58:51,281 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 14:58:51,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 14:58:51,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-11-23 14:58:51,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-23 14:58:51,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943613923] [2020-11-23 14:58:51,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-23 14:58:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 14:58:51,305 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 14:58:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 14:58:51,330 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 14:58:51,354 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-23 14:58:51,355 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-23 14:58:51,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-23 14:58:51,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:58:51 BoogieIcfgContainer [2020-11-23 14:58:51,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-23 14:58:51,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-23 14:58:51,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-23 14:58:51,387 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-23 14:58:51,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:58:50" (3/4) ... [2020-11-23 14:58:51,392 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-23 14:58:51,392 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-23 14:58:51,395 INFO L168 Benchmark]: Toolchain (without parser) took 1393.98 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 35.9 MB in the beginning and 35.5 MB in the end (delta: 475.6 kB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2020-11-23 14:58:51,396 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 52.4 MB. Free memory is still 36.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 14:58:51,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.38 ms. Allocated memory is still 52.4 MB. Free memory was 35.3 MB in the beginning and 29.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-23 14:58:51,399 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.82 ms. Allocated memory is still 52.4 MB. Free memory was 29.5 MB in the beginning and 28.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-23 14:58:51,400 INFO L168 Benchmark]: Boogie Preprocessor took 51.71 ms. Allocated memory is still 52.4 MB. Free memory was 28.0 MB in the beginning and 27.1 MB in the end (delta: 908.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-23 14:58:51,401 INFO L168 Benchmark]: RCFGBuilder took 371.48 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.0 MB in the beginning and 38.8 MB in the end (delta: -11.8 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-11-23 14:58:51,402 INFO L168 Benchmark]: TraceAbstraction took 533.34 ms. Allocated memory is still 62.9 MB. Free memory was 38.4 MB in the beginning and 35.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2020-11-23 14:58:51,403 INFO L168 Benchmark]: Witness Printer took 9.03 ms. Allocated memory is still 62.9 MB. Free memory was 35.8 MB in the beginning and 35.5 MB in the end (delta: 298.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 14:58:51,409 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 52.4 MB. Free memory is still 36.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 361.38 ms. Allocated memory is still 52.4 MB. Free memory was 35.3 MB in the beginning and 29.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.82 ms. Allocated memory is still 52.4 MB. Free memory was 29.5 MB in the beginning and 28.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.71 ms. Allocated memory is still 52.4 MB. Free memory was 28.0 MB in the beginning and 27.1 MB in the end (delta: 908.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 371.48 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.0 MB in the beginning and 38.8 MB in the end (delta: -11.8 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 533.34 ms. Allocated memory is still 62.9 MB. Free memory was 38.4 MB in the beginning and 35.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. * Witness Printer took 9.03 ms. Allocated memory is still 62.9 MB. Free memory was 35.8 MB in the beginning and 35.5 MB in the end (delta: 298.2 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 someBinaryFLOATComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 25. 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 <= 1.001f && result >= -1.001f) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "sine_3.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: 0.4s, 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-cbb939d [2020-11-23 14:58:54,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-23 14:58:54,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-23 14:58:54,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-23 14:58:54,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-23 14:58:54,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-23 14:58:54,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-23 14:58:54,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-23 14:58:54,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-23 14:58:54,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-23 14:58:54,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-23 14:58:54,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-23 14:58:54,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-23 14:58:54,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-23 14:58:54,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-23 14:58:54,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-23 14:58:54,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-23 14:58:54,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-23 14:58:54,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-23 14:58:54,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-23 14:58:54,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-23 14:58:54,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-23 14:58:54,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-23 14:58:54,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-23 14:58:54,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-23 14:58:54,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-23 14:58:54,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-23 14:58:54,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-23 14:58:54,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-23 14:58:54,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-23 14:58:54,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-23 14:58:54,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-23 14:58:54,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-23 14:58:54,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-23 14:58:54,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-23 14:58:54,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-23 14:58:54,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-23 14:58:54,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-23 14:58:54,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-23 14:58:54,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-23 14:58:54,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-23 14:58:54,174 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-23 14:58:54,211 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-23 14:58:54,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-23 14:58:54,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-23 14:58:54,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-23 14:58:54,216 INFO L138 SettingsManager]: * Use SBE=true [2020-11-23 14:58:54,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-23 14:58:54,217 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-23 14:58:54,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-23 14:58:54,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-23 14:58:54,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-23 14:58:54,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-23 14:58:54,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-23 14:58:54,220 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-23 14:58:54,221 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-23 14:58:54,221 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-23 14:58:54,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-23 14:58:54,221 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-23 14:58:54,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-23 14:58:54,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-23 14:58:54,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-23 14:58:54,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-23 14:58:54,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-23 14:58:54,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-23 14:58:54,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-23 14:58:54,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-23 14:58:54,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-23 14:58:54,225 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-23 14:58:54,225 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-23 14:58:54,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-23 14:58:54,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-23 14:58:54,226 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-23 14:58:54,226 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f53d9ed7fe14462ecadf09af148bc11769a4a61 [2020-11-23 14:58:54,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-23 14:58:54,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-23 14:58:54,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-23 14:58:54,738 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-23 14:58:54,738 INFO L275 PluginConnector]: CDTParser initialized [2020-11-23 14:58:54,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/sine_3.i [2020-11-23 14:58:54,820 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e73a9cf04/16f49195169944f1beaad9c4cfca62a9/FLAG4ce3c28b7 [2020-11-23 14:58:55,376 INFO L306 CDTParser]: Found 1 translation units. [2020-11-23 14:58:55,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/sine_3.i [2020-11-23 14:58:55,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e73a9cf04/16f49195169944f1beaad9c4cfca62a9/FLAG4ce3c28b7 [2020-11-23 14:58:55,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e73a9cf04/16f49195169944f1beaad9c4cfca62a9 [2020-11-23 14:58:55,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-23 14:58:55,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-23 14:58:55,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-23 14:58:55,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-23 14:58:55,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-23 14:58:55,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:58:55" (1/1) ... [2020-11-23 14:58:55,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@623d40ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:55, skipping insertion in model container [2020-11-23 14:58:55,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:58:55" (1/1) ... [2020-11-23 14:58:55,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-23 14:58:55,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-23 14:58:56,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 14:58:56,109 INFO L203 MainTranslator]: Completed pre-run [2020-11-23 14:58:56,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 14:58:56,147 INFO L208 MainTranslator]: Completed translation [2020-11-23 14:58:56,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:56 WrapperNode [2020-11-23 14:58:56,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-23 14:58:56,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-23 14:58:56,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-23 14:58:56,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-23 14:58:56,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:56" (1/1) ... [2020-11-23 14:58:56,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:56" (1/1) ... [2020-11-23 14:58:56,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-23 14:58:56,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-23 14:58:56,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-23 14:58:56,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-23 14:58:56,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:56" (1/1) ... [2020-11-23 14:58:56,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:56" (1/1) ... [2020-11-23 14:58:56,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:56" (1/1) ... [2020-11-23 14:58:56,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:56" (1/1) ... [2020-11-23 14:58:56,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:56" (1/1) ... [2020-11-23 14:58:56,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:56" (1/1) ... [2020-11-23 14:58:56,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:56" (1/1) ... [2020-11-23 14:58:56,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-23 14:58:56,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-23 14:58:56,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-23 14:58:56,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-23 14:58:56,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-11-23 14:58:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-23 14:58:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-23 14:58:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-23 14:58:56,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-23 14:58:59,818 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-23 14:58:59,818 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-23 14:58:59,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:58:59 BoogieIcfgContainer [2020-11-23 14:58:59,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-23 14:58:59,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-23 14:58:59,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-23 14:58:59,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-23 14:58:59,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:58:55" (1/3) ... [2020-11-23 14:58:59,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69882c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:58:59, skipping insertion in model container [2020-11-23 14:58:59,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:56" (2/3) ... [2020-11-23 14:58:59,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69882c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:58:59, skipping insertion in model container [2020-11-23 14:58:59,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:58:59" (3/3) ... [2020-11-23 14:58:59,830 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_3.i [2020-11-23 14:58:59,847 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-23 14:58:59,851 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-23 14:58:59,863 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-23 14:58:59,894 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-23 14:58:59,895 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-23 14:58:59,895 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-23 14:58:59,895 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-23 14:58:59,895 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-23 14:58:59,895 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-23 14:58:59,895 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-23 14:58:59,896 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-23 14:58:59,908 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-11-23 14:58:59,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-23 14:58:59,913 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 14:58:59,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-23 14:58:59,914 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 14:58:59,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 14:58:59,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-11-23 14:58:59,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 14:58:59,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796168125] [2020-11-23 14:58:59,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-11-23 14:59:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 14:59:00,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-23 14:59:00,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 14:59:00,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 14:59:00,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 14:59:00,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 14:59:00,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796168125] [2020-11-23 14:59:00,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 14:59:00,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-23 14:59:00,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512423146] [2020-11-23 14:59:00,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-23 14:59:00,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 14:59:00,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-23 14:59:00,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-23 14:59:00,672 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2020-11-23 14:59:00,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 14:59:00,686 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2020-11-23 14:59:00,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-23 14:59:00,688 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-23 14:59:00,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 14:59:00,697 INFO L225 Difference]: With dead ends: 21 [2020-11-23 14:59:00,698 INFO L226 Difference]: Without dead ends: 8 [2020-11-23 14:59:00,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-23 14:59:00,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-11-23 14:59:00,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-11-23 14:59:00,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-23 14:59:00,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-11-23 14:59:00,737 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2020-11-23 14:59:00,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 14:59:00,738 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-11-23 14:59:00,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-23 14:59:00,738 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-11-23 14:59:00,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-23 14:59:00,739 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 14:59:00,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-23 14:59:00,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-23 14:59:00,953 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 14:59:00,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 14:59:00,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-11-23 14:59:00,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 14:59:00,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [826684717] [2020-11-23 14:59:00,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-11-23 14:59:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 14:59:05,677 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 15:05:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 15:05:30,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 15:05:30,759 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-23 15:05:30,760 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-23 15:05:30,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-23 15:05:30,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:05:30 BoogieIcfgContainer [2020-11-23 15:05:30,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-23 15:05:30,989 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-23 15:05:30,989 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-23 15:05:30,989 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-23 15:05:30,990 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:58:59" (3/4) ... [2020-11-23 15:05:30,992 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-23 15:05:31,032 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-11-23 15:05:31,032 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-23 15:05:31,035 INFO L168 Benchmark]: Toolchain (without parser) took 395242.25 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.1 MB in the beginning and 31.4 MB in the end (delta: -8.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-11-23 15:05:31,036 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 46.1 MB. Free memory was 31.2 MB in the beginning and 31.1 MB in the end (delta: 38.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 15:05:31,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.44 ms. Allocated memory is still 46.1 MB. Free memory was 22.5 MB in the beginning and 23.5 MB in the end (delta: -1.1 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-11-23 15:05:31,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.60 ms. Allocated memory is still 46.1 MB. Free memory was 23.5 MB in the beginning and 22.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-23 15:05:31,039 INFO L168 Benchmark]: Boogie Preprocessor took 29.80 ms. Allocated memory is still 46.1 MB. Free memory was 22.0 MB in the beginning and 20.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-23 15:05:31,040 INFO L168 Benchmark]: RCFGBuilder took 3597.71 ms. Allocated memory is still 46.1 MB. Free memory was 20.8 MB in the beginning and 21.5 MB in the end (delta: -724.5 kB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-11-23 15:05:31,041 INFO L168 Benchmark]: TraceAbstraction took 391166.42 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.0 MB in the beginning and 33.0 MB in the end (delta: -12.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 15:05:31,041 INFO L168 Benchmark]: Witness Printer took 43.32 ms. Allocated memory is still 56.6 MB. Free memory was 33.0 MB in the beginning and 31.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-23 15:05:31,046 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 46.1 MB. Free memory was 31.2 MB in the beginning and 31.1 MB in the end (delta: 38.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 348.44 ms. Allocated memory is still 46.1 MB. Free memory was 22.5 MB in the beginning and 23.5 MB in the end (delta: -1.1 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.60 ms. Allocated memory is still 46.1 MB. Free memory was 23.5 MB in the beginning and 22.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.80 ms. Allocated memory is still 46.1 MB. Free memory was 22.0 MB in the beginning and 20.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3597.71 ms. Allocated memory is still 46.1 MB. Free memory was 20.8 MB in the beginning and 21.5 MB in the end (delta: -724.5 kB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 391166.42 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.0 MB in the beginning and 33.0 MB in the end (delta: -12.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 43.32 ms. Allocated memory is still 56.6 MB. Free memory was 33.0 MB in the beginning and 31.4 MB in the end (delta: 1.6 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(); [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 <= 1.001f && result >= -1.001f) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "sine_3.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: 391.0s, 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, 12 GetRequests, 12 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, 5.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 27 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...