./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e 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 /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_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 356e353e7bb6e96bd959fe4862b56669bada9c19 ................................................................................................................................................................ 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 /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_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 356e353e7bb6e96bd959fe4862b56669bada9c19 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:39:20,184 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:39:20,189 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:39:20,202 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:39:20,203 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:39:20,204 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:39:20,206 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:39:20,208 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:39:20,210 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:39:20,211 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:39:20,212 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:39:20,212 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:39:20,214 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:39:20,214 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:39:20,216 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:39:20,216 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:39:20,218 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:39:20,220 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:39:20,222 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:39:20,223 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:39:20,224 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:39:20,226 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:39:20,228 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:39:20,228 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:39:20,229 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:39:20,230 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:39:20,231 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:39:20,232 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:39:20,233 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:39:20,234 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:39:20,234 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:39:20,235 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:39:20,235 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:39:20,236 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:39:20,236 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:39:20,237 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:39:20,237 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:39:20,254 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:39:20,255 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:39:20,256 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:39:20,256 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:39:20,257 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:39:20,257 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:39:20,257 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:39:20,257 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:39:20,257 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:39:20,258 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:39:20,258 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:39:20,258 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:39:20,258 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:39:20,258 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:39:20,258 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:39:20,259 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:39:20,261 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:39:20,261 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:39:20,261 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:39:20,261 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:39:20,262 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:39:20,262 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:39:20,262 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:39:20,262 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:39:20,262 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:39:20,263 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:39:20,264 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:39:20,264 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:39:20,264 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:39:20,264 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:39:20,264 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 -> 356e353e7bb6e96bd959fe4862b56669bada9c19 [2018-11-28 17:39:20,315 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:39:20,329 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:39:20,332 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:39:20,334 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:39:20,335 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:39:20,335 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i [2018-11-28 17:39:20,393 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/170ab5959/1a46446831ad4509be7d2f67d836129a/FLAGc766ae540 [2018-11-28 17:39:20,961 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:39:20,962 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i [2018-11-28 17:39:20,977 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/170ab5959/1a46446831ad4509be7d2f67d836129a/FLAGc766ae540 [2018-11-28 17:39:21,175 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/170ab5959/1a46446831ad4509be7d2f67d836129a [2018-11-28 17:39:21,179 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:39:21,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:39:21,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:39:21,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:39:21,188 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:39:21,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:21" (1/1) ... [2018-11-28 17:39:21,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d4a0d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:21, skipping insertion in model container [2018-11-28 17:39:21,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:21" (1/1) ... [2018-11-28 17:39:21,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:39:21,274 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:39:21,723 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: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:845) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1668) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:208) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1320) 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:998) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2291) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:665) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2291) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.dispatchDecaySwitchToRValueFunctionArgument(ExpressionResultTransformer.java:114) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleVerifierAssume(StandardFunctionHandler.java:1640) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:208) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1320) 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:1271) 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:963) 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:1342) 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:3446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2241) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:539) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-28 17:39:21,735 INFO L168 Benchmark]: Toolchain (without parser) took 554.34 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 929.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:21,738 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:21,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 551.43 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 929.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:21,743 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 551.43 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 929.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 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: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:845) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 17:39:24,000 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:39:24,002 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:39:24,021 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:39:24,022 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:39:24,024 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:39:24,026 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:39:24,037 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:39:24,041 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:39:24,044 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:39:24,047 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:39:24,048 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:39:24,049 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:39:24,052 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:39:24,055 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:39:24,056 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:39:24,057 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:39:24,061 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:39:24,069 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:39:24,073 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:39:24,079 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:39:24,080 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:39:24,084 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:39:24,088 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:39:24,088 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:39:24,089 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:39:24,090 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:39:24,094 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:39:24,097 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:39:24,098 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:39:24,100 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:39:24,101 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:39:24,103 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:39:24,103 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:39:24,104 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:39:24,106 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:39:24,107 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:39:24,137 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:39:24,137 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:39:24,138 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:39:24,138 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:39:24,143 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:39:24,143 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:39:24,143 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:39:24,143 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:39:24,145 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:39:24,145 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:39:24,146 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:39:24,146 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:39:24,146 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:39:24,146 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:39:24,146 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:39:24,147 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:39:24,147 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:39:24,148 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:39:24,148 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:39:24,148 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:39:24,148 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:39:24,148 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:39:24,151 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:39:24,151 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:39:24,151 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:39:24,152 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:39:24,152 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:39:24,152 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:39:24,152 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:39:24,152 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:39:24,154 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:39:24,154 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:39:24,154 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 -> 356e353e7bb6e96bd959fe4862b56669bada9c19 [2018-11-28 17:39:24,214 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:39:24,229 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:39:24,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:39:24,237 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:39:24,237 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:39:24,238 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i [2018-11-28 17:39:24,297 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e2c91c78/8e379159acf34ce69a9e2b808d42111a/FLAGde76e3df1 [2018-11-28 17:39:24,885 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:39:24,893 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i [2018-11-28 17:39:24,917 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e2c91c78/8e379159acf34ce69a9e2b808d42111a/FLAGde76e3df1 [2018-11-28 17:39:25,135 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e2c91c78/8e379159acf34ce69a9e2b808d42111a [2018-11-28 17:39:25,139 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:39:25,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:39:25,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:39:25,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:39:25,147 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:39:25,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:25" (1/1) ... [2018-11-28 17:39:25,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ced0704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:25, skipping insertion in model container [2018-11-28 17:39:25,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:25" (1/1) ... [2018-11-28 17:39:25,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:39:25,216 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:39:25,770 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:39:25,784 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:39:25,892 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:39:26,385 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:39:26,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:26 WrapperNode [2018-11-28 17:39:26,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:39:26,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:39:26,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:39:26,388 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:39:26,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:26" (1/1) ... [2018-11-28 17:39:26,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:26" (1/1) ... [2018-11-28 17:39:26,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:39:26,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:39:26,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:39:26,465 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:39:26,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:26" (1/1) ... [2018-11-28 17:39:26,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:26" (1/1) ... [2018-11-28 17:39:26,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:26" (1/1) ... [2018-11-28 17:39:26,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:26" (1/1) ... [2018-11-28 17:39:26,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:26" (1/1) ... [2018-11-28 17:39:26,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:26" (1/1) ... [2018-11-28 17:39:26,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:26" (1/1) ... [2018-11-28 17:39:26,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:39:26,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:39:26,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:39:26,525 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:39:26,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:26" (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 [2018-11-28 17:39:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:39:26,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:39:26,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:39:26,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:39:26,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:39:26,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:39:27,172 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:39:27,172 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:39:27,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:27 BoogieIcfgContainer [2018-11-28 17:39:27,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:39:27,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:39:27,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:39:27,177 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:39:27,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:39:25" (1/3) ... [2018-11-28 17:39:27,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b3b0b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:39:27, skipping insertion in model container [2018-11-28 17:39:27,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:26" (2/3) ... [2018-11-28 17:39:27,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b3b0b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:39:27, skipping insertion in model container [2018-11-28 17:39:27,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:27" (3/3) ... [2018-11-28 17:39:27,182 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp4_true-unreach-call.i [2018-11-28 17:39:27,194 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:39:27,203 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-11-28 17:39:27,219 INFO L257 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2018-11-28 17:39:27,253 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:39:27,254 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:39:27,254 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:39:27,255 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:39:27,255 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:39:27,255 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:39:27,255 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:39:27,255 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:39:27,255 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:39:27,275 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-11-28 17:39:27,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 17:39:27,281 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:39:27,282 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:39:27,287 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:39:27,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:39:27,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1381730395, now seen corresponding path program 1 times [2018-11-28 17:39:27,298 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:39:27,299 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 [2018-11-28 17:39:27,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:39:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:39:27,353 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:39:27,675 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 2 [2018-11-28 17:39:27,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:39:27,688 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:39:27,703 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:39:27,704 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:39:27,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 17:39:27,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 17:39:27,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:39:27,723 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2018-11-28 17:39:27,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:39:27,784 INFO L93 Difference]: Finished difference Result 80 states and 99 transitions. [2018-11-28 17:39:27,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 17:39:27,786 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 17:39:27,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:39:27,797 INFO L225 Difference]: With dead ends: 80 [2018-11-28 17:39:27,797 INFO L226 Difference]: Without dead ends: 36 [2018-11-28 17:39:27,801 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:39:27,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-28 17:39:27,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-28 17:39:27,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-28 17:39:27,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 35 transitions. [2018-11-28 17:39:27,843 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 35 transitions. Word has length 7 [2018-11-28 17:39:27,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:39:27,843 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 35 transitions. [2018-11-28 17:39:27,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 17:39:27,844 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 35 transitions. [2018-11-28 17:39:27,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 17:39:27,844 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:39:27,845 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:39:27,845 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:39:27,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:39:27,846 INFO L82 PathProgramCache]: Analyzing trace with hash -652134129, now seen corresponding path program 1 times [2018-11-28 17:39:27,846 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:39:27,846 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 [2018-11-28 17:39:27,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:39:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:39:27,880 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:39:27,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:39:27,961 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:39:27,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:39:27,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:39:27,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 17:39:27,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 17:39:27,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:39:27,981 INFO L87 Difference]: Start difference. First operand 36 states and 35 transitions. Second operand 3 states. [2018-11-28 17:39:28,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:39:28,038 INFO L93 Difference]: Finished difference Result 36 states and 35 transitions. [2018-11-28 17:39:28,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 17:39:28,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-28 17:39:28,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:39:28,040 INFO L225 Difference]: With dead ends: 36 [2018-11-28 17:39:28,041 INFO L226 Difference]: Without dead ends: 32 [2018-11-28 17:39:28,044 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:39:28,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-28 17:39:28,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-28 17:39:28,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 17:39:28,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2018-11-28 17:39:28,053 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 11 [2018-11-28 17:39:28,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:39:28,053 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2018-11-28 17:39:28,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 17:39:28,055 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2018-11-28 17:39:28,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 17:39:28,056 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:39:28,057 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:39:28,057 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:39:28,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:39:28,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1586689671, now seen corresponding path program 1 times [2018-11-28 17:39:28,058 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:39:28,058 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-11-28 17:39:28,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-28 17:39:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:39:28,110 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:39:28,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:39:28,123 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:39:28,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:39:28,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:39:28,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 17:39:28,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 17:39:28,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:39:28,139 INFO L87 Difference]: Start difference. First operand 32 states and 31 transitions. Second operand 3 states. [2018-11-28 17:39:28,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:39:28,193 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2018-11-28 17:39:28,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 17:39:28,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-11-28 17:39:28,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:39:28,197 INFO L225 Difference]: With dead ends: 32 [2018-11-28 17:39:28,197 INFO L226 Difference]: Without dead ends: 26 [2018-11-28 17:39:28,198 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:39:28,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-28 17:39:28,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-28 17:39:28,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-28 17:39:28,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2018-11-28 17:39:28,205 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 14 [2018-11-28 17:39:28,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:39:28,206 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2018-11-28 17:39:28,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 17:39:28,206 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2018-11-28 17:39:28,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 17:39:28,207 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:39:28,207 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:39:28,208 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:39:28,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:39:28,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1342669981, now seen corresponding path program 1 times [2018-11-28 17:39:28,211 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:39:28,211 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-11-28 17:39:28,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-28 17:39:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:39:28,263 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:39:28,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:39:28,343 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:39:28,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:39:28,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:39:28,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 17:39:28,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 17:39:28,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:39:28,356 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand 3 states. [2018-11-28 17:39:28,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:39:28,399 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2018-11-28 17:39:28,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 17:39:28,401 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-28 17:39:28,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:39:28,402 INFO L225 Difference]: With dead ends: 26 [2018-11-28 17:39:28,402 INFO L226 Difference]: Without dead ends: 22 [2018-11-28 17:39:28,404 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:39:28,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-28 17:39:28,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-28 17:39:28,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-28 17:39:28,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2018-11-28 17:39:28,408 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 18 [2018-11-28 17:39:28,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:39:28,411 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2018-11-28 17:39:28,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 17:39:28,411 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2018-11-28 17:39:28,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 17:39:28,411 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:39:28,413 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:39:28,414 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:39:28,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:39:28,414 INFO L82 PathProgramCache]: Analyzing trace with hash -446867057, now seen corresponding path program 1 times [2018-11-28 17:39:28,415 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:39:28,416 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-28 17:39:28,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:39:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:39:28,462 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:39:28,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:39:28,514 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:39:28,527 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:39:28,527 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:39:28,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 17:39:28,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 17:39:28,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:39:28,528 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 3 states. [2018-11-28 17:39:28,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:39:28,531 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-11-28 17:39:28,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 17:39:28,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-11-28 17:39:28,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:39:28,532 INFO L225 Difference]: With dead ends: 22 [2018-11-28 17:39:28,532 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:39:28,532 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:39:28,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:39:28,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:39:28,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:39:28,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:39:28,533 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-11-28 17:39:28,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:39:28,534 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:39:28,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 17:39:28,534 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:39:28,534 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:39:28,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:39:28,595 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 17:39:28,595 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:39:28,596 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:39:28,596 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:39:28,596 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:39:28,597 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:39:28,597 INFO L448 ceAbstractionStarter]: For program point L960(line 960) no Hoare annotation was computed. [2018-11-28 17:39:28,597 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 961) no Hoare annotation was computed. [2018-11-28 17:39:28,597 INFO L448 ceAbstractionStarter]: For program point L960-2(lines 954 991) no Hoare annotation was computed. [2018-11-28 17:39:28,597 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 953 991) no Hoare annotation was computed. [2018-11-28 17:39:28,597 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 975) no Hoare annotation was computed. [2018-11-28 17:39:28,597 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 967) no Hoare annotation was computed. [2018-11-28 17:39:28,598 INFO L448 ceAbstractionStarter]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 984) no Hoare annotation was computed. [2018-11-28 17:39:28,598 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 960) no Hoare annotation was computed. [2018-11-28 17:39:28,598 INFO L448 ceAbstractionStarter]: For program point L961(line 961) no Hoare annotation was computed. [2018-11-28 17:39:28,598 INFO L448 ceAbstractionStarter]: For program point L961-2(line 961) no Hoare annotation was computed. [2018-11-28 17:39:28,598 INFO L448 ceAbstractionStarter]: For program point L990(line 990) no Hoare annotation was computed. [2018-11-28 17:39:28,598 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 959) no Hoare annotation was computed. [2018-11-28 17:39:28,598 INFO L448 ceAbstractionStarter]: For program point L990-1(line 990) no Hoare annotation was computed. [2018-11-28 17:39:28,599 INFO L448 ceAbstractionStarter]: For program point L990-3(lines 953 991) no Hoare annotation was computed. [2018-11-28 17:39:28,599 INFO L448 ceAbstractionStarter]: For program point L974(line 974) no Hoare annotation was computed. [2018-11-28 17:39:28,599 INFO L448 ceAbstractionStarter]: For program point L974-1(line 974) no Hoare annotation was computed. [2018-11-28 17:39:28,599 INFO L448 ceAbstractionStarter]: For program point L974-3(lines 954 991) no Hoare annotation was computed. [2018-11-28 17:39:28,599 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 976) no Hoare annotation was computed. [2018-11-28 17:39:28,599 INFO L448 ceAbstractionStarter]: For program point L983(line 983) no Hoare annotation was computed. [2018-11-28 17:39:28,599 INFO L448 ceAbstractionStarter]: For program point L983-1(line 983) no Hoare annotation was computed. [2018-11-28 17:39:28,599 INFO L448 ceAbstractionStarter]: For program point L983-3(lines 954 991) no Hoare annotation was computed. [2018-11-28 17:39:28,604 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 968) no Hoare annotation was computed. [2018-11-28 17:39:28,604 INFO L448 ceAbstractionStarter]: For program point L975(line 975) no Hoare annotation was computed. [2018-11-28 17:39:28,604 INFO L448 ceAbstractionStarter]: For program point L975-2(lines 954 991) no Hoare annotation was computed. [2018-11-28 17:39:28,604 INFO L448 ceAbstractionStarter]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 983) no Hoare annotation was computed. [2018-11-28 17:39:28,606 INFO L448 ceAbstractionStarter]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 990) no Hoare annotation was computed. [2018-11-28 17:39:28,606 INFO L448 ceAbstractionStarter]: For program point L967(line 967) no Hoare annotation was computed. [2018-11-28 17:39:28,606 INFO L448 ceAbstractionStarter]: For program point L967-1(line 967) no Hoare annotation was computed. [2018-11-28 17:39:28,606 INFO L448 ceAbstractionStarter]: For program point L967-3(lines 954 991) no Hoare annotation was computed. [2018-11-28 17:39:28,606 INFO L448 ceAbstractionStarter]: For program point L959(line 959) no Hoare annotation was computed. [2018-11-28 17:39:28,606 INFO L448 ceAbstractionStarter]: For program point L959-1(line 959) no Hoare annotation was computed. [2018-11-28 17:39:28,606 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 953 991) the Hoare annotation is: true [2018-11-28 17:39:28,606 INFO L448 ceAbstractionStarter]: For program point L959-3(lines 954 991) no Hoare annotation was computed. [2018-11-28 17:39:28,607 INFO L448 ceAbstractionStarter]: For program point L984(line 984) no Hoare annotation was computed. [2018-11-28 17:39:28,607 INFO L448 ceAbstractionStarter]: For program point L984-2(line 984) no Hoare annotation was computed. [2018-11-28 17:39:28,607 INFO L448 ceAbstractionStarter]: For program point L976(line 976) no Hoare annotation was computed. [2018-11-28 17:39:28,607 INFO L448 ceAbstractionStarter]: For program point L976-2(line 976) no Hoare annotation was computed. [2018-11-28 17:39:28,607 INFO L448 ceAbstractionStarter]: For program point L968(line 968) no Hoare annotation was computed. [2018-11-28 17:39:28,607 INFO L448 ceAbstractionStarter]: For program point L968-2(line 968) no Hoare annotation was computed. [2018-11-28 17:39:28,607 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 974) no Hoare annotation was computed. [2018-11-28 17:39:28,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:39:28 BoogieIcfgContainer [2018-11-28 17:39:28,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:39:28,615 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:39:28,615 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:39:28,615 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:39:28,616 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:27" (3/4) ... [2018-11-28 17:39:28,621 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:39:28,630 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:39:28,631 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:39:28,637 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 17:39:28,638 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 17:39:28,638 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:39:28,721 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:39:28,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:39:28,725 INFO L168 Benchmark]: Toolchain (without parser) took 3585.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 947.3 MB in the beginning and 1.0 GB in the end (delta: -85.7 MB). Peak memory consumption was 63.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:28,728 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:28,729 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1244.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -198.9 MB). Peak memory consumption was 131.3 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:28,729 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:28,730 INFO L168 Benchmark]: Boogie Preprocessor took 60.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:28,730 INFO L168 Benchmark]: RCFGBuilder took 648.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:28,738 INFO L168 Benchmark]: TraceAbstraction took 1440.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.1 MB). Peak memory consumption was 81.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:28,738 INFO L168 Benchmark]: Witness Printer took 109.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:28,746 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1244.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -198.9 MB). Peak memory consumption was 131.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 648.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1440.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.1 MB). Peak memory consumption was 81.1 MB. Max. memory is 11.5 GB. * Witness Printer took 109.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 961]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 967]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 983]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 959]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 960]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 968]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 990]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 974]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 975]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 984]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 976]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 46 locations, 11 error locations. SAFE Result, 1.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 125 SDtfs, 72 SDslu, 58 SDs, 0 SdLazy, 10 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 1245 SizeOfPredicates, 5 NumberOfNonLiveVariables, 131 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...