./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0883.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0883.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b3809e91ede00e1e9187fef8a038e5463b8d9fc ................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0883.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b3809e91ede00e1e9187fef8a038e5463b8d9fc ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-7b2dab5 [2020-12-03 01:04:13,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 01:04:13,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 01:04:13,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 01:04:13,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 01:04:13,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 01:04:13,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 01:04:13,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 01:04:13,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 01:04:13,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 01:04:13,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 01:04:13,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 01:04:13,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 01:04:13,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 01:04:13,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 01:04:13,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 01:04:13,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 01:04:13,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 01:04:13,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 01:04:13,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 01:04:13,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 01:04:13,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 01:04:13,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 01:04:13,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 01:04:13,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 01:04:13,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 01:04:13,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 01:04:13,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 01:04:13,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 01:04:13,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 01:04:13,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 01:04:13,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 01:04:13,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 01:04:13,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 01:04:13,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 01:04:13,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 01:04:13,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 01:04:13,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 01:04:13,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 01:04:13,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 01:04:13,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 01:04:13,221 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-03 01:04:13,278 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 01:04:13,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 01:04:13,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 01:04:13,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 01:04:13,280 INFO L138 SettingsManager]: * Use SBE=true [2020-12-03 01:04:13,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 01:04:13,282 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 01:04:13,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 01:04:13,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 01:04:13,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 01:04:13,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 01:04:13,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 01:04:13,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 01:04:13,283 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 01:04:13,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 01:04:13,284 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 01:04:13,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 01:04:13,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 01:04:13,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-03 01:04:13,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 01:04:13,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 01:04:13,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 01:04:13,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 01:04:13,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 01:04:13,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-03 01:04:13,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 01:04:13,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 01:04:13,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 01:04:13,288 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b3809e91ede00e1e9187fef8a038e5463b8d9fc [2020-12-03 01:04:13,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 01:04:13,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 01:04:13,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 01:04:13,858 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 01:04:13,859 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 01:04:13,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0883.c [2020-12-03 01:04:13,950 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9008f9cc3/20963883fbd942c3afc3e19192b65242/FLAGd5c033b33 [2020-12-03 01:04:14,651 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 01:04:14,652 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0883.c [2020-12-03 01:04:14,675 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9008f9cc3/20963883fbd942c3afc3e19192b65242/FLAGd5c033b33 [2020-12-03 01:04:14,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9008f9cc3/20963883fbd942c3afc3e19192b65242 [2020-12-03 01:04:14,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 01:04:14,981 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 01:04:14,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 01:04:14,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 01:04:14,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 01:04:14,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:04:14" (1/1) ... [2020-12-03 01:04:14,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da55abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:04:14, skipping insertion in model container [2020-12-03 01:04:14,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:04:14" (1/1) ... [2020-12-03 01:04:15,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 01:04:15,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 01:04:15,318 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1702) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$41(StandardFunctionHandler.java:358) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1402) 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.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1972) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1046) 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.visit(CHandler.java:1578) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1046) 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:1424) 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:3213) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2293) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) 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:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) 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) [2020-12-03 01:04:15,325 INFO L168 Benchmark]: Toolchain (without parser) took 345.72 ms. Allocated memory is still 41.9 MB. Free memory was 18.7 MB in the beginning and 18.4 MB in the end (delta: 263.6 kB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-12-03 01:04:15,325 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 41.9 MB. Free memory is still 27.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 01:04:15,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.26 ms. Allocated memory is still 41.9 MB. Free memory was 18.6 MB in the beginning and 18.4 MB in the end (delta: 138.6 kB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-12-03 01:04:15,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 41.9 MB. Free memory is still 27.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 336.26 ms. Allocated memory is still 41.9 MB. Free memory was 18.6 MB in the beginning and 18.4 MB in the end (delta: 138.6 kB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-03 01:04:17,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 01:04:17,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 01:04:17,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 01:04:17,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 01:04:17,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 01:04:17,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 01:04:17,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 01:04:17,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 01:04:17,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 01:04:17,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 01:04:17,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 01:04:17,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 01:04:17,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 01:04:17,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 01:04:17,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 01:04:17,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 01:04:17,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 01:04:17,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 01:04:17,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 01:04:17,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 01:04:17,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 01:04:17,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 01:04:17,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 01:04:17,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 01:04:17,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 01:04:17,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 01:04:17,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 01:04:17,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 01:04:17,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 01:04:17,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 01:04:17,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 01:04:17,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 01:04:17,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 01:04:17,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 01:04:17,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 01:04:17,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 01:04:17,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 01:04:17,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 01:04:17,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 01:04:17,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 01:04:17,869 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-03 01:04:17,926 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 01:04:17,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 01:04:17,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 01:04:17,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 01:04:17,930 INFO L138 SettingsManager]: * Use SBE=true [2020-12-03 01:04:17,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 01:04:17,931 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 01:04:17,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 01:04:17,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 01:04:17,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 01:04:17,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 01:04:17,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 01:04:17,933 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-03 01:04:17,933 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-03 01:04:17,933 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 01:04:17,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 01:04:17,934 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 01:04:17,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 01:04:17,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 01:04:17,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-03 01:04:17,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 01:04:17,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 01:04:17,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 01:04:17,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 01:04:17,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 01:04:17,936 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-03 01:04:17,936 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-03 01:04:17,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 01:04:17,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 01:04:17,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 01:04:17,937 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b3809e91ede00e1e9187fef8a038e5463b8d9fc [2020-12-03 01:04:18,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 01:04:18,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 01:04:18,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 01:04:18,391 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 01:04:18,393 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 01:04:18,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0883.c [2020-12-03 01:04:18,497 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/526dbec48/733920f0a6214f76851693634c7c80fa/FLAG92ad896fb [2020-12-03 01:04:19,263 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 01:04:19,264 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0883.c [2020-12-03 01:04:19,277 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/526dbec48/733920f0a6214f76851693634c7c80fa/FLAG92ad896fb [2020-12-03 01:04:19,529 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/526dbec48/733920f0a6214f76851693634c7c80fa [2020-12-03 01:04:19,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 01:04:19,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 01:04:19,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 01:04:19,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 01:04:19,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 01:04:19,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:04:19" (1/1) ... [2020-12-03 01:04:19,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d58a40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:04:19, skipping insertion in model container [2020-12-03 01:04:19,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:04:19" (1/1) ... [2020-12-03 01:04:19,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 01:04:19,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 01:04:20,079 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0883.c[14409,14422] [2020-12-03 01:04:20,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 01:04:20,097 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 01:04:20,294 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0883.c[14409,14422] [2020-12-03 01:04:20,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 01:04:20,334 INFO L208 MainTranslator]: Completed translation [2020-12-03 01:04:20,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:04:20 WrapperNode [2020-12-03 01:04:20,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 01:04:20,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 01:04:20,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 01:04:20,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 01:04:20,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:04:20" (1/1) ... [2020-12-03 01:04:20,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:04:20" (1/1) ... [2020-12-03 01:04:20,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 01:04:20,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 01:04:20,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 01:04:20,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 01:04:20,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:04:20" (1/1) ... [2020-12-03 01:04:20,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:04:20" (1/1) ... [2020-12-03 01:04:20,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:04:20" (1/1) ... [2020-12-03 01:04:20,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:04:20" (1/1) ... [2020-12-03 01:04:20,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:04:20" (1/1) ... [2020-12-03 01:04:20,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:04:20" (1/1) ... [2020-12-03 01:04:20,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:04:20" (1/1) ... [2020-12-03 01:04:20,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 01:04:20,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 01:04:20,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 01:04:20,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 01:04:20,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:04:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 01:04:20,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-03 01:04:20,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-03 01:04:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-03 01:04:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 01:04:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-03 01:04:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-03 01:04:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 01:04:20,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 01:04:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-03 01:04:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 01:05:44,576 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 01:05:44,580 INFO L299 CfgBuilder]: Removed 92 assume(true) statements. [2020-12-03 01:05:44,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:05:44 BoogieIcfgContainer [2020-12-03 01:05:44,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 01:05:44,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 01:05:44,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 01:05:44,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 01:05:44,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 01:04:19" (1/3) ... [2020-12-03 01:05:44,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6d9991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 01:05:44, skipping insertion in model container [2020-12-03 01:05:44,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:04:20" (2/3) ... [2020-12-03 01:05:44,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6d9991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 01:05:44, skipping insertion in model container [2020-12-03 01:05:44,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:05:44" (3/3) ... [2020-12-03 01:05:44,595 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0883.c [2020-12-03 01:05:44,615 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 01:05:44,623 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 01:05:44,637 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-03 01:05:44,670 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 01:05:44,670 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 01:05:44,671 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 01:05:44,671 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 01:05:44,671 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 01:05:44,671 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 01:05:44,671 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 01:05:44,672 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 01:05:44,694 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-12-03 01:05:44,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-03 01:05:44,701 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:05:44,702 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:05:44,703 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:05:44,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:05:44,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1952898142, now seen corresponding path program 1 times [2020-12-03 01:05:44,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:05:44,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594925821] [2020-12-03 01:05:44,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-03 01:05:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:05:45,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-03 01:05:45,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:05:45,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:05:45,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:05:45,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594925821] [2020-12-03 01:05:45,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:05:45,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 01:05:45,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400685655] [2020-12-03 01:05:45,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-03 01:05:45,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:05:45,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-03 01:05:45,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 01:05:45,292 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 2 states. [2020-12-03 01:05:45,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:05:45,370 INFO L93 Difference]: Finished difference Result 429 states and 732 transitions. [2020-12-03 01:05:45,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-03 01:05:45,372 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-12-03 01:05:45,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:05:45,408 INFO L225 Difference]: With dead ends: 429 [2020-12-03 01:05:45,409 INFO L226 Difference]: Without dead ends: 212 [2020-12-03 01:05:45,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 01:05:45,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-12-03 01:05:45,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-12-03 01:05:45,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-12-03 01:05:45,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 290 transitions. [2020-12-03 01:05:45,533 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 290 transitions. Word has length 13 [2020-12-03 01:05:45,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:05:45,537 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 290 transitions. [2020-12-03 01:05:45,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-03 01:05:45,538 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 290 transitions. [2020-12-03 01:05:45,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-03 01:05:45,539 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:05:45,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:05:45,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-03 01:05:45,755 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:05:45,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:05:45,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1508795791, now seen corresponding path program 1 times [2020-12-03 01:05:45,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:05:45,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360664811] [2020-12-03 01:05:45,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-03 01:05:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:05:46,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-03 01:05:46,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:05:46,832 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-12-03 01:05:46,922 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-03 01:05:47,001 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:05:47,002 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-03 01:05:47,254 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-03 01:05:47,254 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:05:47,256 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-03 01:05:47,257 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:18 [2020-12-03 01:05:51,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:05:51,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:05:51,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360664811] [2020-12-03 01:05:51,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:05:51,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 01:05:51,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139290122] [2020-12-03 01:05:51,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 01:05:51,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:05:51,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 01:05:51,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=11, Unknown=2, NotChecked=0, Total=20 [2020-12-03 01:05:51,884 INFO L87 Difference]: Start difference. First operand 212 states and 290 transitions. Second operand 5 states. [2020-12-03 01:05:58,116 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-03 01:06:01,433 WARN L197 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 24 [2020-12-03 01:06:21,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:06:21,083 INFO L93 Difference]: Finished difference Result 237 states and 316 transitions. [2020-12-03 01:06:21,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 01:06:21,212 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-12-03 01:06:21,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:06:21,214 INFO L225 Difference]: With dead ends: 237 [2020-12-03 01:06:21,215 INFO L226 Difference]: Without dead ends: 221 [2020-12-03 01:06:21,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=17, Invalid=22, Unknown=3, NotChecked=0, Total=42 [2020-12-03 01:06:21,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-12-03 01:06:21,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 212. [2020-12-03 01:06:21,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-12-03 01:06:21,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 283 transitions. [2020-12-03 01:06:21,242 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 283 transitions. Word has length 16 [2020-12-03 01:06:21,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:06:21,244 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 283 transitions. [2020-12-03 01:06:21,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 01:06:21,244 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 283 transitions. [2020-12-03 01:06:21,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-03 01:06:21,248 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:06:21,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:06:21,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-03 01:06:21,450 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:06:21,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:06:21,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1604115190, now seen corresponding path program 1 times [2020-12-03 01:06:21,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:06:21,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [26447024] [2020-12-03 01:06:21,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-03 01:06:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:06:21,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-03 01:06:21,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:06:23,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:06:23,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:06:23,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [26447024] [2020-12-03 01:06:23,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:06:23,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-03 01:06:23,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909635503] [2020-12-03 01:06:23,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 01:06:23,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:06:23,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 01:06:23,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-03 01:06:23,047 INFO L87 Difference]: Start difference. First operand 212 states and 283 transitions. Second operand 6 states. [2020-12-03 01:06:23,505 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-03 01:06:24,033 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-03 01:06:24,538 WARN L197 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-03 01:06:28,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:06:28,094 INFO L93 Difference]: Finished difference Result 401 states and 531 transitions. [2020-12-03 01:06:28,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 01:06:28,095 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-03 01:06:28,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:06:28,098 INFO L225 Difference]: With dead ends: 401 [2020-12-03 01:06:28,098 INFO L226 Difference]: Without dead ends: 201 [2020-12-03 01:06:28,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-03 01:06:28,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-12-03 01:06:28,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 193. [2020-12-03 01:06:28,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-12-03 01:06:28,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 242 transitions. [2020-12-03 01:06:28,124 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 242 transitions. Word has length 18 [2020-12-03 01:06:28,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:06:28,124 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 242 transitions. [2020-12-03 01:06:28,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 01:06:28,125 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 242 transitions. [2020-12-03 01:06:28,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-03 01:06:28,126 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:06:28,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:06:28,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-03 01:06:28,342 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:06:28,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:06:28,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1881505480, now seen corresponding path program 1 times [2020-12-03 01:06:28,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:06:28,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588256406] [2020-12-03 01:06:28,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-03 01:06:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:06:28,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-03 01:06:28,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:06:29,440 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-03 01:06:29,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-03 01:06:29,833 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2020-12-03 01:06:29,836 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-03 01:06:30,265 WARN L197 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-03 01:06:30,265 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:06:30,271 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-03 01:06:30,271 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:48, output treesize:48 [2020-12-03 01:06:30,743 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-03 01:06:31,087 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-03 01:06:31,088 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:06:31,088 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 44 [2020-12-03 01:06:31,092 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:06:31,096 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:06:31,101 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-03 01:06:31,147 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_3], 2=[v_arrayElimCell_2]} [2020-12-03 01:06:32,044 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-03 01:06:32,045 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:06:32,046 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 44 [2020-12-03 01:06:32,049 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:06:32,051 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:06:32,054 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-03 01:06:32,105 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_5], 2=[v_arrayElimCell_4]} [2020-12-03 01:06:32,550 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-03 01:06:32,551 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:06:32,551 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 46 [2020-12-03 01:06:32,554 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:06:32,556 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:06:32,558 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-03 01:06:32,605 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_7], 2=[v_arrayElimCell_6]} [2020-12-03 01:06:33,503 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-03 01:06:33,505 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:06:33,506 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 46 [2020-12-03 01:06:33,509 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:06:33,511 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:06:33,512 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-03 01:06:33,558 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_9], 2=[v_arrayElimCell_8]} [2020-12-03 01:06:33,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:06:33,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:06:33,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588256406] [2020-12-03 01:06:33,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:06:33,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-03 01:06:33,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384388688] [2020-12-03 01:06:33,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-03 01:06:33,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:06:33,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-03 01:06:33,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=30, Unknown=1, NotChecked=0, Total=42 [2020-12-03 01:06:33,647 INFO L87 Difference]: Start difference. First operand 193 states and 242 transitions. Second operand 7 states. [2020-12-03 01:06:34,361 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-03 01:06:35,020 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-12-03 01:06:36,007 WARN L197 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-12-03 01:06:36,963 WARN L197 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-03 01:06:41,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:06:41,341 INFO L93 Difference]: Finished difference Result 201 states and 249 transitions. [2020-12-03 01:06:41,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-03 01:06:41,343 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-12-03 01:06:41,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:06:41,345 INFO L225 Difference]: With dead ends: 201 [2020-12-03 01:06:41,345 INFO L226 Difference]: Without dead ends: 82 [2020-12-03 01:06:41,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=35, Invalid=74, Unknown=1, NotChecked=0, Total=110 [2020-12-03 01:06:41,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-12-03 01:06:41,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-12-03 01:06:41,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-12-03 01:06:41,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 106 transitions. [2020-12-03 01:06:41,366 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 106 transitions. Word has length 18 [2020-12-03 01:06:41,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:06:41,367 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 106 transitions. [2020-12-03 01:06:41,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-03 01:06:41,367 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 106 transitions. [2020-12-03 01:06:41,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-03 01:06:41,369 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:06:41,370 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] [2020-12-03 01:06:41,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-03 01:06:41,585 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:06:41,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:06:41,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1708848732, now seen corresponding path program 1 times [2020-12-03 01:06:41,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:06:41,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470011638] [2020-12-03 01:06:41,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-12-03 01:06:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:06:42,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-03 01:06:42,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:06:43,160 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-12-03 01:06:43,245 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-03 01:06:43,302 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:06:43,303 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-03 01:06:43,552 WARN L197 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-03 01:06:43,552 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:06:43,554 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-03 01:06:43,554 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:34, output treesize:23 [2020-12-03 01:06:45,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:06:45,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:06:45,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470011638] [2020-12-03 01:06:45,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:06:45,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-03 01:06:45,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744613922] [2020-12-03 01:06:45,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-03 01:06:45,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:06:45,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-03 01:06:45,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-12-03 01:06:45,177 INFO L87 Difference]: Start difference. First operand 82 states and 106 transitions. Second operand 9 states. [2020-12-03 01:06:45,993 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-03 01:06:47,078 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-03 01:06:48,776 WARN L197 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-03 01:06:49,629 WARN L197 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-12-03 01:06:50,699 WARN L197 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-03 01:06:51,646 WARN L197 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-12-03 01:06:51,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:06:51,965 INFO L93 Difference]: Finished difference Result 90 states and 113 transitions. [2020-12-03 01:06:51,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-03 01:06:51,970 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-12-03 01:06:51,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:06:51,971 INFO L225 Difference]: With dead ends: 90 [2020-12-03 01:06:51,972 INFO L226 Difference]: Without dead ends: 81 [2020-12-03 01:06:51,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-12-03 01:06:51,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-12-03 01:06:51,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-12-03 01:06:51,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-12-03 01:06:51,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 103 transitions. [2020-12-03 01:06:51,993 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 103 transitions. Word has length 22 [2020-12-03 01:06:51,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:06:51,994 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 103 transitions. [2020-12-03 01:06:51,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-03 01:06:51,994 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 103 transitions. [2020-12-03 01:06:51,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-03 01:06:51,995 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:06:51,996 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] [2020-12-03 01:06:52,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-03 01:06:52,197 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:06:52,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:06:52,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1455075428, now seen corresponding path program 1 times [2020-12-03 01:06:52,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:06:52,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012243044] [2020-12-03 01:06:52,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-03 01:06:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:06:52,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-03 01:06:52,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:06:53,174 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2020-12-03 01:06:53,176 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-03 01:06:53,628 WARN L197 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-12-03 01:06:53,628 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:06:53,630 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-03 01:06:53,630 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:43, output treesize:43 [2020-12-03 01:06:53,948 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-12-03 01:06:54,414 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-03 01:06:54,987 WARN L197 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-03 01:06:55,570 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-03 01:06:57,472 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-03 01:06:57,472 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:06:57,473 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 48 [2020-12-03 01:06:57,475 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:06:57,476 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:06:57,478 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-03 01:06:57,519 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_11], 2=[v_arrayElimCell_12]} [2020-12-03 01:06:58,438 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-03 01:06:58,439 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:06:58,439 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 48 [2020-12-03 01:06:58,441 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:06:58,443 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:06:58,444 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-03 01:06:58,485 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_13], 2=[v_arrayElimCell_14]} [2020-12-03 01:06:58,900 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-03 01:06:58,901 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:06:58,901 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 112 [2020-12-03 01:06:58,904 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:06:58,905 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:06:58,906 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-03 01:06:58,959 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_15], 2=[v_arrayElimCell_16]} [2020-12-03 01:07:00,015 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-03 01:07:00,016 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:07:00,016 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 112 [2020-12-03 01:07:00,019 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:07:00,020 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:07:00,021 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-03 01:07:00,065 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_17], 2=[v_arrayElimCell_18]} [2020-12-03 01:07:00,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:07:00,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:07:00,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012243044] [2020-12-03 01:07:00,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:07:00,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-03 01:07:00,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838427524] [2020-12-03 01:07:00,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-03 01:07:00,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:07:00,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-03 01:07:00,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-12-03 01:07:00,864 INFO L87 Difference]: Start difference. First operand 81 states and 103 transitions. Second operand 13 states. [2020-12-03 01:07:03,267 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-12-03 01:07:05,287 WARN L197 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-12-03 01:07:06,805 WARN L197 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-12-03 01:07:09,924 WARN L197 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-03 01:07:11,237 WARN L197 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-03 01:07:13,366 WARN L197 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-12-03 01:07:14,834 WARN L197 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-12-03 01:07:16,661 WARN L197 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-12-03 01:07:18,345 WARN L197 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-12-03 01:07:18,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:07:18,990 INFO L93 Difference]: Finished difference Result 91 states and 112 transitions. [2020-12-03 01:07:18,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-03 01:07:18,991 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 24 [2020-12-03 01:07:18,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:07:18,992 INFO L225 Difference]: With dead ends: 91 [2020-12-03 01:07:18,992 INFO L226 Difference]: Without dead ends: 79 [2020-12-03 01:07:18,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2020-12-03 01:07:18,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-12-03 01:07:19,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2020-12-03 01:07:19,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-12-03 01:07:19,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 98 transitions. [2020-12-03 01:07:19,004 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 98 transitions. Word has length 24 [2020-12-03 01:07:19,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:07:19,004 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 98 transitions. [2020-12-03 01:07:19,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-03 01:07:19,005 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions. [2020-12-03 01:07:19,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-03 01:07:19,006 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:07:19,006 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] [2020-12-03 01:07:19,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-03 01:07:19,221 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:07:19,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:07:19,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1888969367, now seen corresponding path program 1 times [2020-12-03 01:07:19,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:07:19,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347278089] [2020-12-03 01:07:19,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-12-03 01:07:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:07:20,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-03 01:07:20,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:07:20,463 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-03 01:07:20,774 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-03 01:07:21,159 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-03 01:07:22,153 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-12-03 01:07:22,219 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-03 01:07:22,272 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:07:22,273 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-03 01:07:22,486 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-03 01:07:22,487 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:07:22,489 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-03 01:07:22,489 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:50, output treesize:39 [2020-12-03 01:07:24,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:07:24,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:07:24,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347278089] [2020-12-03 01:07:24,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:07:24,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-03 01:07:24,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46873323] [2020-12-03 01:07:24,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-03 01:07:24,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:07:24,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-03 01:07:24,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-12-03 01:07:24,028 INFO L87 Difference]: Start difference. First operand 77 states and 98 transitions. Second operand 12 states. [2020-12-03 01:07:25,324 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-03 01:07:26,537 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-03 01:07:29,708 WARN L197 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-03 01:07:30,548 WARN L197 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-03 01:07:31,266 WARN L197 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-03 01:07:32,145 WARN L197 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-12-03 01:07:36,448 WARN L197 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-12-03 01:07:37,294 WARN L197 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-12-03 01:07:39,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:07:39,393 INFO L93 Difference]: Finished difference Result 103 states and 121 transitions. [2020-12-03 01:07:39,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-03 01:07:39,394 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 28 [2020-12-03 01:07:39,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:07:39,395 INFO L225 Difference]: With dead ends: 103 [2020-12-03 01:07:39,395 INFO L226 Difference]: Without dead ends: 94 [2020-12-03 01:07:39,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2020-12-03 01:07:39,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-12-03 01:07:39,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 77. [2020-12-03 01:07:39,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-12-03 01:07:39,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 96 transitions. [2020-12-03 01:07:39,407 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 96 transitions. Word has length 28 [2020-12-03 01:07:39,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:07:39,407 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 96 transitions. [2020-12-03 01:07:39,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-03 01:07:39,408 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 96 transitions. [2020-12-03 01:07:39,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-03 01:07:39,409 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:07:39,409 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, 1, 1, 1] [2020-12-03 01:07:39,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-03 01:07:39,624 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:07:39,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:07:39,625 INFO L82 PathProgramCache]: Analyzing trace with hash 2004065555, now seen corresponding path program 1 times [2020-12-03 01:07:39,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:07:39,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522041917] [2020-12-03 01:07:39,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-12-03 01:07:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:07:40,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 30 conjunts are in the unsatisfiable core [2020-12-03 01:07:40,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:07:41,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-03 01:07:41,229 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2020-12-03 01:07:41,233 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-03 01:07:41,576 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-12-03 01:07:41,577 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:07:41,579 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-03 01:07:41,579 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:41, output treesize:41 [2020-12-03 01:07:42,141 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-12-03 01:07:43,121 WARN L197 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-12-03 01:07:43,122 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:07:43,122 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 75 [2020-12-03 01:07:43,125 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-03 01:07:44,322 WARN L197 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-12-03 01:07:44,322 INFO L625 ElimStorePlain]: treesize reduction 36, result has 74.1 percent of original size [2020-12-03 01:07:44,325 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2020-12-03 01:07:44,326 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:106, output treesize:103 [2020-12-03 01:07:48,221 WARN L197 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-03 01:07:48,222 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:07:48,222 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 97 [2020-12-03 01:07:48,224 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:48,225 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:07:48,226 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:48,227 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:48,228 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:07:48,229 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:48,230 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-03 01:07:48,231 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:48,232 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:48,233 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:07:48,234 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:48,235 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-03 01:07:48,236 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:48,238 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:48,239 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-03 01:07:48,241 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:07:48,242 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:48,243 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:07:48,246 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:48,246 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:07:48,247 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-03 01:07:48,248 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-03 01:07:48,250 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-03 01:07:48,251 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:07:48,252 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-03 01:07:48,253 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-03 01:07:48,296 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_24, v_arrayElimCell_23], 2=[v_arrayElimCell_22]} [2020-12-03 01:07:49,818 WARN L197 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-03 01:07:49,819 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:07:49,819 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 97 [2020-12-03 01:07:49,821 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:49,822 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:07:49,823 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:49,823 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:49,824 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:07:49,825 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:49,826 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-03 01:07:49,827 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:49,828 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:49,829 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-03 01:07:49,830 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:07:49,831 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-03 01:07:49,832 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:49,833 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:07:49,834 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-03 01:07:49,837 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:07:49,838 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:49,839 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:49,840 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:49,841 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-03 01:07:49,842 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:49,843 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:49,844 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-03 01:07:49,847 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:49,848 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:49,849 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-03 01:07:49,890 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_26, v_arrayElimCell_27], 2=[v_arrayElimCell_25]} [2020-12-03 01:07:50,668 WARN L197 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-03 01:07:50,669 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:07:50,669 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 165 treesize of output 161 [2020-12-03 01:07:50,678 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:50,679 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:07:50,680 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:50,681 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:50,682 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:07:50,683 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:50,684 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-03 01:07:50,686 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:50,687 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:50,688 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-03 01:07:50,689 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:07:50,691 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-03 01:07:50,692 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:50,693 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:07:50,694 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-03 01:07:50,698 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:07:50,699 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:50,700 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:50,701 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:50,702 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-03 01:07:50,704 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:07:50,705 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-03 01:07:50,706 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-03 01:07:50,709 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:07:50,710 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:50,718 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:50,761 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_30, v_arrayElimCell_29], 2=[v_arrayElimCell_28]} [2020-12-03 01:07:52,468 WARN L197 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-03 01:07:52,468 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:07:52,468 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 165 treesize of output 161 [2020-12-03 01:07:52,470 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:52,471 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:07:52,472 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:52,473 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:52,473 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:07:52,475 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:52,476 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-03 01:07:52,478 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:52,479 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:07:52,484 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-03 01:07:52,485 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-03 01:07:52,486 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-03 01:07:52,488 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:07:52,489 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-03 01:07:52,490 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-03 01:07:52,495 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:52,497 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:52,498 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:07:52,499 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:52,500 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-03 01:07:52,502 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:52,503 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-03 01:07:52,504 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-03 01:07:52,507 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-03 01:07:52,508 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 01:07:52,509 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-03 01:07:52,551 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_33, v_arrayElimCell_32], 2=[v_arrayElimCell_31]} [2020-12-03 01:07:53,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:07:53,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:07:53,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522041917] [2020-12-03 01:07:53,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:07:53,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-12-03 01:07:53,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991577441] [2020-12-03 01:07:53,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-03 01:07:53,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:07:53,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-03 01:07:53,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-12-03 01:07:53,738 INFO L87 Difference]: Start difference. First operand 77 states and 96 transitions. Second operand 15 states. [2020-12-03 01:07:55,191 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-03 01:07:57,093 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-03 01:07:58,166 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-12-03 01:08:00,525 WARN L197 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-12-03 01:08:05,245 WARN L197 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-12-03 01:08:27,770 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-03 01:08:27,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-03 01:08:27,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-12-03 01:08:27,973 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:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) 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 [2020-12-03 01:08:27,981 INFO L168 Benchmark]: Toolchain (without parser) took 248444.46 ms. Allocated memory was 46.1 MB in the beginning and 71.3 MB in the end (delta: 25.2 MB). Free memory was 22.3 MB in the beginning and 24.3 MB in the end (delta: -2.0 MB). Peak memory consumption was 23.9 MB. Max. memory is 16.1 GB. [2020-12-03 01:08:27,982 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 46.1 MB. Free memory was 24.0 MB in the beginning and 23.9 MB in the end (delta: 52.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 01:08:27,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.49 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 22.1 MB in the beginning and 36.1 MB in the end (delta: -14.0 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-12-03 01:08:27,984 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.24 ms. Allocated memory is still 58.7 MB. Free memory was 36.1 MB in the beginning and 31.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-03 01:08:27,986 INFO L168 Benchmark]: Boogie Preprocessor took 121.32 ms. Allocated memory is still 58.7 MB. Free memory was 31.3 MB in the beginning and 25.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-03 01:08:27,986 INFO L168 Benchmark]: RCFGBuilder took 84033.95 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 25.8 MB in the beginning and 32.7 MB in the end (delta: -6.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2020-12-03 01:08:27,987 INFO L168 Benchmark]: TraceAbstraction took 163393.75 ms. Allocated memory is still 71.3 MB. Free memory was 32.2 MB in the beginning and 24.3 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 01:08:27,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 46.1 MB. Free memory was 24.0 MB in the beginning and 23.9 MB in the end (delta: 52.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 794.49 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 22.1 MB in the beginning and 36.1 MB in the end (delta: -14.0 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.24 ms. Allocated memory is still 58.7 MB. Free memory was 36.1 MB in the beginning and 31.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 121.32 ms. Allocated memory is still 58.7 MB. Free memory was 31.3 MB in the beginning and 25.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 84033.95 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 25.8 MB in the beginning and 32.7 MB in the end (delta: -6.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 163393.75 ms. Allocated memory is still 71.3 MB. Free memory was 32.2 MB in the beginning and 24.3 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 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...