./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 91c18909fa64fb894260d901851992225c0131b1 ............................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 91c18909fa64fb894260d901851992225c0131b1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:15:46,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:15:46,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:15:46,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:15:46,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:15:46,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:15:46,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:15:46,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:15:46,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:15:46,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:15:46,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:15:46,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:15:46,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:15:46,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:15:46,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:15:46,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:15:46,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:15:46,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:15:46,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:15:46,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:15:46,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:15:46,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:15:46,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:15:46,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:15:46,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:15:46,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:15:46,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:15:46,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:15:46,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:15:46,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:15:46,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:15:46,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:15:46,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:15:46,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:15:46,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:15:46,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:15:46,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:15:46,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:15:46,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:15:46,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:15:46,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:15:46,333 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 14:15:46,362 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:15:46,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:15:46,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:15:46,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:15:46,367 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:15:46,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:15:46,367 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:15:46,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:15:46,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:15:46,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:15:46,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:15:46,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:15:46,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:15:46,371 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:15:46,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:15:46,371 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:15:46,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:15:46,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:15:46,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:15:46,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:15:46,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:15:46,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:15:46,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:15:46,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:15:46,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:15:46,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:15:46,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:15:46,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:15:46,376 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:15:46,377 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91c18909fa64fb894260d901851992225c0131b1 [2020-10-24 14:15:46,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:15:46,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:15:46,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:15:46,839 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:15:46,843 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:15:46,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-10-24 14:15:46,931 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00628c008/8909a5b9c0eb4f63bc67a8ee1e797967/FLAGd766db631 [2020-10-24 14:15:47,664 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:15:47,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-10-24 14:15:47,689 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00628c008/8909a5b9c0eb4f63bc67a8ee1e797967/FLAGd766db631 [2020-10-24 14:15:47,960 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00628c008/8909a5b9c0eb4f63bc67a8ee1e797967 [2020-10-24 14:15:47,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:15:47,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:15:47,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:15:47,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:15:47,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:15:47,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:15:47" (1/1) ... [2020-10-24 14:15:47,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8f8298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:47, skipping insertion in model container [2020-10-24 14:15:47,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:15:47" (1/1) ... [2020-10-24 14:15:47,999 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:15:48,054 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:15:48,744 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: fesetround not supported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:967) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleBuiltinFesetround(StandardFunctionHandler.java:1382) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1400) 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:1351) 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:1044) 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:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1422) 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:3209) 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.CHandler.visit(CHandler.java:578) 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:201) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-24 14:15:48,754 INFO L168 Benchmark]: Toolchain (without parser) took 776.52 ms. Allocated memory is still 52.4 MB. Free memory was 37.7 MB in the beginning and 36.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:15:48,756 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 39.8 MB. Free memory was 20.4 MB in the beginning and 20.4 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:15:48,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 768.57 ms. Allocated memory is still 52.4 MB. Free memory was 37.1 MB in the beginning and 36.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:15:48,762 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 39.8 MB. Free memory was 20.4 MB in the beginning and 20.4 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 768.57 ms. Allocated memory is still 52.4 MB. Free memory was 37.1 MB in the beginning and 36.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: fesetround not supported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: fesetround not supported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:967) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:15:51,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:15:51,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:15:51,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:15:51,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:15:51,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:15:51,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:15:51,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:15:51,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:15:51,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:15:51,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:15:51,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:15:51,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:15:51,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:15:51,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:15:51,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:15:51,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:15:51,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:15:51,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:15:51,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:15:51,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:15:51,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:15:51,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:15:51,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:15:51,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:15:51,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:15:51,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:15:51,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:15:51,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:15:51,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:15:51,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:15:51,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:15:51,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:15:51,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:15:51,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:15:51,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:15:51,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:15:51,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:15:51,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:15:51,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:15:51,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:15:51,474 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 14:15:51,529 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:15:51,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:15:51,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:15:51,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:15:51,533 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:15:51,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:15:51,533 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:15:51,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:15:51,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:15:51,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:15:51,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:15:51,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:15:51,535 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:15:51,535 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:15:51,536 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:15:51,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:15:51,536 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:15:51,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:15:51,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:15:51,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:15:51,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:15:51,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:15:51,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:15:51,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:15:51,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:15:51,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:15:51,538 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:15:51,538 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:15:51,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:15:51,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:15:51,539 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:15:51,539 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91c18909fa64fb894260d901851992225c0131b1 [2020-10-24 14:15:51,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:15:52,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:15:52,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:15:52,006 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:15:52,006 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:15:52,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-10-24 14:15:52,105 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fafdeff0b/d0a86415a75d4f2cab50f429d393c5b8/FLAG7ca839a86 [2020-10-24 14:15:52,945 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:15:52,946 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-10-24 14:15:52,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fafdeff0b/d0a86415a75d4f2cab50f429d393c5b8/FLAG7ca839a86 [2020-10-24 14:15:53,150 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fafdeff0b/d0a86415a75d4f2cab50f429d393c5b8 [2020-10-24 14:15:53,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:15:53,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:15:53,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:15:53,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:15:53,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:15:53,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:15:53" (1/1) ... [2020-10-24 14:15:53,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f98cb44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:53, skipping insertion in model container [2020-10-24 14:15:53,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:15:53" (1/1) ... [2020-10-24 14:15:53,226 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:15:53,281 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:15:53,823 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:15:53,867 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:15:53,905 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:15:54,301 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:15:54,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:54 WrapperNode [2020-10-24 14:15:54,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:15:54,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:15:54,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:15:54,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:15:54,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:54" (1/1) ... [2020-10-24 14:15:54,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:54" (1/1) ... [2020-10-24 14:15:54,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:15:54,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:15:54,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:15:54,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:15:54,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:54" (1/1) ... [2020-10-24 14:15:54,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:54" (1/1) ... [2020-10-24 14:15:54,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:54" (1/1) ... [2020-10-24 14:15:54,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:54" (1/1) ... [2020-10-24 14:15:54,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:54" (1/1) ... [2020-10-24 14:15:54,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:54" (1/1) ... [2020-10-24 14:15:54,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:54" (1/1) ... [2020-10-24 14:15:54,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:15:54,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:15:54,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:15:54,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:15:54,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:15:54,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-10-24 14:15:54,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-10-24 14:15:54,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 14:15:54,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:15:54,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:15:54,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:15:55,161 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:15:55,162 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-10-24 14:15:55,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:15:55 BoogieIcfgContainer [2020-10-24 14:15:55,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:15:55,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:15:55,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:15:55,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:15:55,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:15:53" (1/3) ... [2020-10-24 14:15:55,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7940a250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:15:55, skipping insertion in model container [2020-10-24 14:15:55,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:54" (2/3) ... [2020-10-24 14:15:55,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7940a250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:15:55, skipping insertion in model container [2020-10-24 14:15:55,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:15:55" (3/3) ... [2020-10-24 14:15:55,180 INFO L111 eAbstractionObserver]: Analyzing ICFG float-rounding1.i [2020-10-24 14:15:55,197 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:15:55,202 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-24 14:15:55,222 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-24 14:15:55,252 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:15:55,252 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:15:55,252 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:15:55,252 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:15:55,253 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:15:55,253 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:15:55,253 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:15:55,253 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:15:55,271 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2020-10-24 14:15:55,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 14:15:55,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:15:55,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:15:55,278 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:15:55,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:15:55,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1805428198, now seen corresponding path program 1 times [2020-10-24 14:15:55,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:15:55,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647330476] [2020-10-24 14:15:55,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 14:15:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:15:55,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:15:55,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:15:55,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:15:55,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:15:55,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:15:55,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647330476] [2020-10-24 14:15:55,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:15:55,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:15:55,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467258242] [2020-10-24 14:15:55,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:15:55,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:15:55,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:15:55,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:15:55,652 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 4 states. [2020-10-24 14:15:55,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:15:55,783 INFO L93 Difference]: Finished difference Result 125 states and 180 transitions. [2020-10-24 14:15:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:15:55,785 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-24 14:15:55,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:15:55,796 INFO L225 Difference]: With dead ends: 125 [2020-10-24 14:15:55,797 INFO L226 Difference]: Without dead ends: 64 [2020-10-24 14:15:55,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:15:55,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-24 14:15:55,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 45. [2020-10-24 14:15:55,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-24 14:15:55,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2020-10-24 14:15:55,843 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 7 [2020-10-24 14:15:55,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:15:55,843 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2020-10-24 14:15:55,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:15:55,844 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2020-10-24 14:15:55,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-24 14:15:55,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:15:55,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:15:56,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 14:15:56,062 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:15:56,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:15:56,063 INFO L82 PathProgramCache]: Analyzing trace with hash 177934122, now seen corresponding path program 1 times [2020-10-24 14:15:56,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:15:56,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830957591] [2020-10-24 14:15:56,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-24 14:15:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:15:56,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-24 14:15:56,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:15:57,207 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-10-24 14:15:58,256 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-10-24 14:16:00,736 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 49 [2020-10-24 14:16:00,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:00,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:03,803 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-24 14:16:05,809 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-24 14:16:06,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:06,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830957591] [2020-10-24 14:16:06,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:06,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-24 14:16:06,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308353621] [2020-10-24 14:16:06,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 14:16:06,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:06,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 14:16:06,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-24 14:16:06,167 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand 9 states. [2020-10-24 14:16:09,347 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification that was a NOOP. DAG size: 55 [2020-10-24 14:16:16,514 WARN L193 SmtUtils]: Spent 2.26 s on a formula simplification that was a NOOP. DAG size: 57 [2020-10-24 14:16:21,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:21,196 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2020-10-24 14:16:21,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 14:16:21,201 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 8 [2020-10-24 14:16:21,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:21,202 INFO L225 Difference]: With dead ends: 80 [2020-10-24 14:16:21,202 INFO L226 Difference]: Without dead ends: 77 [2020-10-24 14:16:21,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 16.5s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-24 14:16:21,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-24 14:16:21,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 42. [2020-10-24 14:16:21,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-24 14:16:21,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-10-24 14:16:21,211 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 8 [2020-10-24 14:16:21,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:21,212 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-10-24 14:16:21,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 14:16:21,212 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-10-24 14:16:21,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 14:16:21,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:21,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:21,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 14:16:21,426 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:21,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:21,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1941724699, now seen corresponding path program 1 times [2020-10-24 14:16:21,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:21,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324696965] [2020-10-24 14:16:21,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:21,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:16:21,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:21,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:21,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:21,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:21,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324696965] [2020-10-24 14:16:21,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:21,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:21,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419267772] [2020-10-24 14:16:21,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:21,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:21,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:21,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:21,643 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 4 states. [2020-10-24 14:16:21,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:21,723 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2020-10-24 14:16:21,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:21,723 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-24 14:16:21,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:21,724 INFO L225 Difference]: With dead ends: 73 [2020-10-24 14:16:21,724 INFO L226 Difference]: Without dead ends: 42 [2020-10-24 14:16:21,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:21,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-24 14:16:21,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-24 14:16:21,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-24 14:16:21,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-10-24 14:16:21,731 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 13 [2020-10-24 14:16:21,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:21,732 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-10-24 14:16:21,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:21,732 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-10-24 14:16:21,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 14:16:21,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:21,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:21,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 14:16:21,946 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:21,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:21,948 INFO L82 PathProgramCache]: Analyzing trace with hash -745441216, now seen corresponding path program 1 times [2020-10-24 14:16:21,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:21,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112962964] [2020-10-24 14:16:21,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:22,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-24 14:16:22,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:23,062 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-10-24 14:16:24,351 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-10-24 14:16:27,141 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 49 [2020-10-24 14:16:27,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:27,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:30,128 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-24 14:16:33,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:33,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [112962964] [2020-10-24 14:16:33,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:33,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-24 14:16:33,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259227102] [2020-10-24 14:16:33,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 14:16:33,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:33,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 14:16:33,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-24 14:16:33,228 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 9 states. [2020-10-24 14:16:35,383 WARN L193 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-10-24 14:16:40,951 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification that was a NOOP. DAG size: 55 [2020-10-24 14:16:43,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:43,769 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-10-24 14:16:43,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 14:16:43,770 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-24 14:16:43,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:43,770 INFO L225 Difference]: With dead ends: 42 [2020-10-24 14:16:43,770 INFO L226 Difference]: Without dead ends: 39 [2020-10-24 14:16:43,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-24 14:16:43,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-24 14:16:43,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-24 14:16:43,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-24 14:16:43,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-10-24 14:16:43,776 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 15 [2020-10-24 14:16:43,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:43,777 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-10-24 14:16:43,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 14:16:43,777 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-10-24 14:16:43,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-24 14:16:43,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:43,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:43,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 14:16:43,979 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:43,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:43,980 INFO L82 PathProgramCache]: Analyzing trace with hash 860992344, now seen corresponding path program 1 times [2020-10-24 14:16:43,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:43,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016622583] [2020-10-24 14:16:43,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 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 [2020-10-24 14:16:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:44,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 24 conjunts are in the unsatisfiable core [2020-10-24 14:16:44,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:44,259 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 14:16:44,390 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 14:16:44,614 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-10-24 14:16:44,621 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 14:16:44,800 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-24 14:16:44,803 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 14:16:44,964 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 14:16:45,443 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-10-24 14:16:45,447 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 14:16:46,201 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-10-24 14:16:46,206 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 14:16:49,852 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 14:16:49,857 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 14:16:58,816 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-24 14:16:58,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:58,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:17:01,817 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-24 14:17:04,520 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-24 14:17:07,483 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-24 14:17:08,938 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-10-24 14:17:08,951 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-24 14:17:08,951 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:17:10,236 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-10-24 14:17:11,949 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-10-24 14:17:22,081 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-10-24 14:17:24,908 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-24 14:17:24,916 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:17:26,940 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-10-24 14:17:29,263 WARN L193 SmtUtils]: Spent 912.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-24 14:17:29,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:17:29,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016622583] [2020-10-24 14:17:29,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:17:29,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2020-10-24 14:17:29,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907796963] [2020-10-24 14:17:29,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-24 14:17:29,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:17:29,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-24 14:17:29,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=452, Unknown=3, NotChecked=0, Total=552 [2020-10-24 14:17:29,335 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 24 states. [2020-10-24 14:17:34,872 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-24 14:17:40,346 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-24 14:17:41,959 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-24 14:17:48,888 WARN L193 SmtUtils]: Spent 5.15 s on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2020-10-24 14:17:50,963 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 14:18:03,205 WARN L193 SmtUtils]: Spent 8.56 s on a formula simplification. DAG size of input: 120 DAG size of output: 116 [2020-10-24 14:18:16,489 WARN L193 SmtUtils]: Spent 6.78 s on a formula simplification. DAG size of input: 144 DAG size of output: 102 [2020-10-24 14:18:29,725 WARN L193 SmtUtils]: Spent 5.34 s on a formula simplification. DAG size of input: 136 DAG size of output: 99 [2020-10-24 14:18:45,453 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 104 DAG size of output: 80 [2020-10-24 14:18:49,051 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-24 14:19:07,485 WARN L193 SmtUtils]: Spent 9.03 s on a formula simplification. DAG size of input: 105 DAG size of output: 77 [2020-10-24 14:19:22,244 WARN L193 SmtUtils]: Spent 6.49 s on a formula simplification. DAG size of input: 125 DAG size of output: 101 [2020-10-24 14:19:32,452 WARN L193 SmtUtils]: Spent 4.50 s on a formula simplification that was a NOOP. DAG size: 74 [2020-10-24 14:19:47,085 WARN L193 SmtUtils]: Spent 7.41 s on a formula simplification. DAG size of input: 98 DAG size of output: 98 [2020-10-24 14:20:01,593 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-24 14:20:07,898 WARN L193 SmtUtils]: Spent 909.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-24 14:20:38,523 WARN L193 SmtUtils]: Spent 16.70 s on a formula simplification that was a NOOP. DAG size: 102 [2020-10-24 14:20:48,707 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 53 [2020-10-24 14:20:58,357 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-24 14:21:25,816 WARN L193 SmtUtils]: Spent 10.51 s on a formula simplification. DAG size of input: 136 DAG size of output: 54 [2020-10-24 14:22:16,033 WARN L193 SmtUtils]: Spent 4.50 s on a formula simplification. DAG size of input: 136 DAG size of output: 69 [2020-10-24 14:22:28,356 WARN L193 SmtUtils]: Spent 2.40 s on a formula simplification that was a NOOP. DAG size: 50 [2020-10-24 14:23:13,796 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 147 DAG size of output: 80 [2020-10-24 14:23:23,641 WARN L193 SmtUtils]: Spent 4.27 s on a formula simplification that was a NOOP. DAG size: 59 [2020-10-24 14:23:46,262 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-10-24 14:23:46,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-24 14:23:46,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-24 14:23:46,467 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:899) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1064) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:966) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:187) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:743) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:674) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 45 more [2020-10-24 14:23:46,475 INFO L168 Benchmark]: Toolchain (without parser) took 473301.39 ms. Allocated memory was 46.1 MB in the beginning and 73.4 MB in the end (delta: 27.3 MB). Free memory was 22.5 MB in the beginning and 20.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. [2020-10-24 14:23:46,476 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 46.1 MB. Free memory was 26.5 MB in the beginning and 26.5 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:23:46,477 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1119.00 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 21.9 MB in the beginning and 36.3 MB in the end (delta: -14.5 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. [2020-10-24 14:23:46,479 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.36 ms. Allocated memory is still 58.7 MB. Free memory was 36.3 MB in the beginning and 33.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:23:46,479 INFO L168 Benchmark]: Boogie Preprocessor took 56.23 ms. Allocated memory is still 58.7 MB. Free memory was 33.2 MB in the beginning and 31.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:23:46,480 INFO L168 Benchmark]: RCFGBuilder took 680.09 ms. Allocated memory is still 58.7 MB. Free memory was 31.6 MB in the beginning and 31.9 MB in the end (delta: -283.1 kB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2020-10-24 14:23:46,481 INFO L168 Benchmark]: TraceAbstraction took 471307.32 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 31.4 MB in the beginning and 20.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2020-10-24 14:23:46,486 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 46.1 MB. Free memory was 26.5 MB in the beginning and 26.5 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1119.00 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 21.9 MB in the beginning and 36.3 MB in the end (delta: -14.5 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 121.36 ms. Allocated memory is still 58.7 MB. Free memory was 36.3 MB in the beginning and 33.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.23 ms. Allocated memory is still 58.7 MB. Free memory was 33.2 MB in the beginning and 31.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 680.09 ms. Allocated memory is still 58.7 MB. Free memory was 31.6 MB in the beginning and 31.9 MB in the end (delta: -283.1 kB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 471307.32 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 31.4 MB in the beginning and 20.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...