./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/floats-esbmc-regression/copysign_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 96530338 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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-esbmc-regression/copysign_true-unreach-call.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b417ef1b78b1681b43008a7169fa8fa490774215 .......................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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-esbmc-regression/copysign_true-unreach-call.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b417ef1b78b1681b43008a7169fa8fa490774215 .................................................................................................................................................................................................................................................................................................. 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 0.1.23-9653033 [2018-11-26 12:55:46,528 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-26 12:55:46,529 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-26 12:55:46,542 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-26 12:55:46,543 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-26 12:55:46,544 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-26 12:55:46,545 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-26 12:55:46,547 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-26 12:55:46,549 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-26 12:55:46,550 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-26 12:55:46,551 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-26 12:55:46,551 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-26 12:55:46,553 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-26 12:55:46,554 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-26 12:55:46,556 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-26 12:55:46,557 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-26 12:55:46,558 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-26 12:55:46,560 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-26 12:55:46,563 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-26 12:55:46,564 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-26 12:55:46,565 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-26 12:55:46,566 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-26 12:55:46,569 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-26 12:55:46,569 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-26 12:55:46,569 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-26 12:55:46,571 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-26 12:55:46,572 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-26 12:55:46,573 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-26 12:55:46,573 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-26 12:55:46,574 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-26 12:55:46,575 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-26 12:55:46,576 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-26 12:55:46,576 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-26 12:55:46,576 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-26 12:55:46,577 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-26 12:55:46,578 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-26 12:55:46,578 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-26 12:55:46,594 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-26 12:55:46,595 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-26 12:55:46,596 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-26 12:55:46,596 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-26 12:55:46,597 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-26 12:55:46,597 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-26 12:55:46,598 INFO L133 SettingsManager]: * Use SBE=true [2018-11-26 12:55:46,598 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-26 12:55:46,598 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-26 12:55:46,598 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-26 12:55:46,598 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-26 12:55:46,599 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-26 12:55:46,599 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-26 12:55:46,599 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-26 12:55:46,599 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-26 12:55:46,599 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-26 12:55:46,600 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-26 12:55:46,601 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-26 12:55:46,601 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-26 12:55:46,601 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-26 12:55:46,602 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-26 12:55:46,602 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-26 12:55:46,602 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-26 12:55:46,602 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-26 12:55:46,602 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-26 12:55:46,603 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-26 12:55:46,603 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-26 12:55:46,603 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-26 12:55:46,603 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-26 12:55:46,603 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-26 12:55:46,603 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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(__VERIFIER_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 -> b417ef1b78b1681b43008a7169fa8fa490774215 [2018-11-26 12:55:46,659 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-26 12:55:46,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-26 12:55:46,675 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-26 12:55:46,677 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-26 12:55:46,677 INFO L276 PluginConnector]: CDTParser initialized [2018-11-26 12:55:46,678 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/copysign_true-unreach-call.i [2018-11-26 12:55:46,735 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e473a72/e1cfe30dc47b488389cb05569ab12b41/FLAG5de964c03 [2018-11-26 12:55:47,185 INFO L307 CDTParser]: Found 1 translation units. [2018-11-26 12:55:47,186 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/copysign_true-unreach-call.i [2018-11-26 12:55:47,198 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e473a72/e1cfe30dc47b488389cb05569ab12b41/FLAG5de964c03 [2018-11-26 12:55:47,705 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e473a72/e1cfe30dc47b488389cb05569ab12b41 [2018-11-26 12:55:47,708 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-26 12:55:47,709 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-26 12:55:47,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-26 12:55:47,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-26 12:55:47,714 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-26 12:55:47,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:55:47" (1/1) ... [2018-11-26 12:55:47,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70855b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:47, skipping insertion in model container [2018-11-26 12:55:47,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:55:47" (1/1) ... [2018-11-26 12:55:47,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-26 12:55:47,774 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-26 12:55:48,222 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: copysign at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:843) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleBinaryFloatFunction(StandardFunctionHandler.java:1353) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:207) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1319) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:664) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.dispatchDecaySwitchToRValueFunctionArgument(ExpressionResultTransformer.java:113) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:678) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:508) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1341) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3445) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2240) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:538) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:129) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-26 12:55:48,226 INFO L168 Benchmark]: Toolchain (without parser) took 517.35 ms. Allocated memory is still 1.0 GB. Free memory was 946.5 MB in the beginning and 930.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-26 12:55:48,228 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-26 12:55:48,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 515.00 ms. Allocated memory is still 1.0 GB. Free memory was 946.5 MB in the beginning and 930.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-26 12:55:48,231 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 515.00 ms. Allocated memory is still 1.0 GB. Free memory was 946.5 MB in the beginning and 930.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: copysign de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: copysign: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:843) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-9653033 [2018-11-26 12:55:49,903 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-26 12:55:49,905 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-26 12:55:49,917 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-26 12:55:49,918 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-26 12:55:49,919 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-26 12:55:49,920 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-26 12:55:49,922 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-26 12:55:49,924 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-26 12:55:49,925 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-26 12:55:49,925 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-26 12:55:49,926 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-26 12:55:49,927 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-26 12:55:49,928 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-26 12:55:49,930 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-26 12:55:49,931 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-26 12:55:49,932 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-26 12:55:49,935 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-26 12:55:49,937 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-26 12:55:49,939 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-26 12:55:49,940 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-26 12:55:49,941 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-26 12:55:49,944 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-26 12:55:49,944 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-26 12:55:49,944 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-26 12:55:49,945 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-26 12:55:49,946 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-26 12:55:49,947 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-26 12:55:49,947 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-26 12:55:49,948 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-26 12:55:49,948 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-26 12:55:49,950 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-26 12:55:49,950 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-26 12:55:49,950 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-26 12:55:49,951 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-26 12:55:49,952 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-26 12:55:49,952 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-26 12:55:49,967 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-26 12:55:49,968 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-26 12:55:49,969 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-26 12:55:49,969 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-26 12:55:49,969 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-26 12:55:49,970 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-26 12:55:49,970 INFO L133 SettingsManager]: * Use SBE=true [2018-11-26 12:55:49,970 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-26 12:55:49,970 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-26 12:55:49,970 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-26 12:55:49,971 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-26 12:55:49,971 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-26 12:55:49,971 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-26 12:55:49,971 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-26 12:55:49,971 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-26 12:55:49,971 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-26 12:55:49,972 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-26 12:55:49,972 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-26 12:55:49,972 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-26 12:55:49,972 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-26 12:55:49,972 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-26 12:55:49,972 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-26 12:55:49,973 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-26 12:55:49,973 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-26 12:55:49,973 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-26 12:55:49,973 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-26 12:55:49,973 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-26 12:55:49,974 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-26 12:55:49,974 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-26 12:55:49,974 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-26 12:55:49,974 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-26 12:55:49,974 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-26 12:55:49,974 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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(__VERIFIER_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 -> b417ef1b78b1681b43008a7169fa8fa490774215 [2018-11-26 12:55:50,009 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-26 12:55:50,022 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-26 12:55:50,026 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-26 12:55:50,028 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-26 12:55:50,029 INFO L276 PluginConnector]: CDTParser initialized [2018-11-26 12:55:50,029 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/copysign_true-unreach-call.i [2018-11-26 12:55:50,094 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7e78ba67/2f32b8b3d4dd44d0bb8d1d00049f6c05/FLAG59d8497f2 [2018-11-26 12:55:50,539 INFO L307 CDTParser]: Found 1 translation units. [2018-11-26 12:55:50,540 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/copysign_true-unreach-call.i [2018-11-26 12:55:50,553 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7e78ba67/2f32b8b3d4dd44d0bb8d1d00049f6c05/FLAG59d8497f2 [2018-11-26 12:55:51,054 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7e78ba67/2f32b8b3d4dd44d0bb8d1d00049f6c05 [2018-11-26 12:55:51,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-26 12:55:51,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-26 12:55:51,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-26 12:55:51,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-26 12:55:51,064 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-26 12:55:51,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:55:51" (1/1) ... [2018-11-26 12:55:51,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70855b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:51, skipping insertion in model container [2018-11-26 12:55:51,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:55:51" (1/1) ... [2018-11-26 12:55:51,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-26 12:55:51,125 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-26 12:55:51,572 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-26 12:55:51,577 INFO L191 MainTranslator]: Completed pre-run [2018-11-26 12:55:51,619 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-26 12:55:51,907 INFO L195 MainTranslator]: Completed translation [2018-11-26 12:55:51,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:51 WrapperNode [2018-11-26 12:55:51,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-26 12:55:51,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-26 12:55:51,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-26 12:55:51,909 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-26 12:55:51,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:51" (1/1) ... [2018-11-26 12:55:51,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:51" (1/1) ... [2018-11-26 12:55:52,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-26 12:55:52,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-26 12:55:52,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-26 12:55:52,001 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-26 12:55:52,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:51" (1/1) ... [2018-11-26 12:55:52,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:51" (1/1) ... [2018-11-26 12:55:52,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:51" (1/1) ... [2018-11-26 12:55:52,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:51" (1/1) ... [2018-11-26 12:55:52,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:51" (1/1) ... [2018-11-26 12:55:52,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:51" (1/1) ... [2018-11-26 12:55:52,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:51" (1/1) ... [2018-11-26 12:55:52,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-26 12:55:52,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-26 12:55:52,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-26 12:55:52,027 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-26 12:55:52,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:51" (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 [2018-11-26 12:55:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-26 12:55:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-26 12:55:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-26 12:55:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-26 12:55:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-26 12:55:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-26 12:55:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-26 12:55:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-26 12:55:52,213 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-26 12:55:52,213 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-26 12:55:52,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:55:52 BoogieIcfgContainer [2018-11-26 12:55:52,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-26 12:55:52,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-26 12:55:52,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-26 12:55:52,218 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-26 12:55:52,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:55:51" (1/3) ... [2018-11-26 12:55:52,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ada7e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:55:52, skipping insertion in model container [2018-11-26 12:55:52,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:51" (2/3) ... [2018-11-26 12:55:52,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ada7e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:55:52, skipping insertion in model container [2018-11-26 12:55:52,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:55:52" (3/3) ... [2018-11-26 12:55:52,222 INFO L112 eAbstractionObserver]: Analyzing ICFG copysign_true-unreach-call.i [2018-11-26 12:55:52,232 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-26 12:55:52,237 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-26 12:55:52,253 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-26 12:55:52,280 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-26 12:55:52,280 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-26 12:55:52,281 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-26 12:55:52,281 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-26 12:55:52,281 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-26 12:55:52,281 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-26 12:55:52,281 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-26 12:55:52,281 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-26 12:55:52,281 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-26 12:55:52,300 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-26 12:55:52,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-26 12:55:52,306 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 12:55:52,307 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 12:55:52,309 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 12:55:52,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 12:55:52,313 INFO L82 PathProgramCache]: Analyzing trace with hash 333481598, now seen corresponding path program 1 times [2018-11-26 12:55:52,318 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-26 12:55:52,319 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-26 12:55:52,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 12:55:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 12:55:52,400 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-26 12:55:52,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 12:55:52,499 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-26 12:55:52,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 12:55:52,512 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-26 12:55:52,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-26 12:55:52,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-26 12:55:52,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-26 12:55:52,530 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 4 states. [2018-11-26 12:55:52,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 12:55:52,651 INFO L93 Difference]: Finished difference Result 41 states and 56 transitions. [2018-11-26 12:55:52,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-26 12:55:52,653 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-26 12:55:52,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 12:55:52,661 INFO L225 Difference]: With dead ends: 41 [2018-11-26 12:55:52,661 INFO L226 Difference]: Without dead ends: 19 [2018-11-26 12:55:52,664 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-26 12:55:52,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-26 12:55:52,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-26 12:55:52,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-26 12:55:52,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2018-11-26 12:55:52,697 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 8 [2018-11-26 12:55:52,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 12:55:52,698 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2018-11-26 12:55:52,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-26 12:55:52,698 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-11-26 12:55:52,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-26 12:55:52,701 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 12:55:52,701 INFO L402 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 12:55:52,701 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 12:55:52,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 12:55:52,702 INFO L82 PathProgramCache]: Analyzing trace with hash -254920724, now seen corresponding path program 1 times [2018-11-26 12:55:52,702 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-26 12:55:52,702 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-26 12:55:52,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 12:55:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-26 12:55:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-26 12:55:52,789 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-26 12:55:52,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:55:52 BoogieIcfgContainer [2018-11-26 12:55:52,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-26 12:55:52,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-26 12:55:52,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-26 12:55:52,818 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-26 12:55:52,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:55:52" (3/4) ... [2018-11-26 12:55:52,820 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-26 12:55:52,866 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-26 12:55:52,866 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-26 12:55:52,867 INFO L168 Benchmark]: Toolchain (without parser) took 1808.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 941.1 MB in the beginning and 1.0 GB in the end (delta: -95.0 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-26 12:55:52,869 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-26 12:55:52,869 INFO L168 Benchmark]: CACSL2BoogieTranslator took 848.44 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 828.3 MB in the end (delta: 112.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 11.5 GB. [2018-11-26 12:55:52,870 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 828.3 MB in the beginning and 1.1 GB in the end (delta: -268.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-11-26 12:55:52,870 INFO L168 Benchmark]: Boogie Preprocessor took 26.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-26 12:55:52,871 INFO L168 Benchmark]: RCFGBuilder took 186.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-11-26 12:55:52,871 INFO L168 Benchmark]: TraceAbstraction took 602.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. [2018-11-26 12:55:52,872 INFO L168 Benchmark]: Witness Printer took 48.61 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-26 12:55:52,876 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 848.44 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 828.3 MB in the end (delta: 112.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 91.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 828.3 MB in the beginning and 1.1 GB in the end (delta: -268.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 186.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 602.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. * Witness Printer took 48.61 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 867]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L871] CALL __VERIFIER_assert(copysign(1.0, +2.0) == 1.0) VAL [\old(cond)=1] [L867] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L871] RET __VERIFIER_assert(copysign(1.0, +2.0) == 1.0) [L872] CALL __VERIFIER_assert(copysign(1.0, -2.0) == -1.0) VAL [\old(cond)=1] [L867] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L872] RET __VERIFIER_assert(copysign(1.0, -2.0) == -1.0) [L873] CALL __VERIFIER_assert(copysign(-1.0, +2.0) == 1.0) VAL [\old(cond)=1] [L867] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L873] RET __VERIFIER_assert(copysign(-1.0, +2.0) == 1.0) [L874] CALL __VERIFIER_assert(copysign(-1.0, -2.0) == -1.0) VAL [\old(cond)=1] [L867] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L874] RET __VERIFIER_assert(copysign(-1.0, -2.0) == -1.0) [L876] CALL __VERIFIER_assert(copysign((__builtin_inff()), -2.0) == -(__builtin_inff())) VAL [\old(cond)=1] [L867] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L876] RET __VERIFIER_assert(copysign((__builtin_inff()), -2.0) == -(__builtin_inff())) [L878] double snan = copysign((__builtin_nanf ("")), -2.0); VAL [snan=NaN] [L879] CALL __VERIFIER_assert((sizeof (snan) == sizeof (float) ? __isnanf (snan) : sizeof (snan) == sizeof (double) ? __isnan (snan) : __isnanl (snan)) && (sizeof (snan) == sizeof (float) ? __signbitf (snan) : sizeof (snan) == sizeof (double) ? __signbit (snan) : __signbitl (snan))) VAL [\old(cond)=0] [L867] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L867] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 6 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 5 SDslu, 30 SDs, 0 SdLazy, 22 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 2 NumberOfNonLiveVariables, 16 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...