./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0882_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0882_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e6812207659d67444abdc9d105ff32acac8458b5 ........................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0882_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e6812207659d67444abdc9d105ff32acac8458b5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 17:00:18,454 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 17:00:18,455 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 17:00:18,460 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 17:00:18,461 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 17:00:18,461 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 17:00:18,462 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 17:00:18,462 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 17:00:18,463 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 17:00:18,464 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 17:00:18,464 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 17:00:18,464 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 17:00:18,465 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 17:00:18,465 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 17:00:18,466 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 17:00:18,466 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 17:00:18,466 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 17:00:18,467 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 17:00:18,468 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 17:00:18,469 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 17:00:18,469 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 17:00:18,470 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 17:00:18,471 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 17:00:18,471 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 17:00:18,471 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 17:00:18,471 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 17:00:18,472 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 17:00:18,472 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 17:00:18,472 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 17:00:18,473 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 17:00:18,473 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 17:00:18,473 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 17:00:18,474 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 17:00:18,474 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 17:00:18,474 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 17:00:18,474 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 17:00:18,475 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-01 17:00:18,481 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 17:00:18,482 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 17:00:18,482 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 17:00:18,482 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 17:00:18,482 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 17:00:18,483 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 17:00:18,483 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 17:00:18,483 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 17:00:18,483 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 17:00:18,483 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 17:00:18,483 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 17:00:18,483 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 17:00:18,483 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 17:00:18,483 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 17:00:18,483 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 17:00:18,483 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 17:00:18,483 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 17:00:18,483 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 17:00:18,484 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 17:00:18,484 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 17:00:18,484 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 17:00:18,484 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 17:00:18,484 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 17:00:18,484 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 17:00:18,484 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 17:00:18,484 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 17:00:18,484 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 17:00:18,484 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 17:00:18,484 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 17:00:18,484 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 17:00:18,485 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6812207659d67444abdc9d105ff32acac8458b5 [2018-12-01 17:00:18,501 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 17:00:18,508 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 17:00:18,510 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 17:00:18,511 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 17:00:18,511 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 17:00:18,511 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0882_true-unreach-call.c [2018-12-01 17:00:18,545 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/data/2d39799f7/efe89e7fb11746748471a1b81e510bb1/FLAG2d20dda7c [2018-12-01 17:00:18,981 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 17:00:18,982 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/sv-benchmarks/c/float-newlib/double_req_bl_0882_true-unreach-call.c [2018-12-01 17:00:18,989 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/data/2d39799f7/efe89e7fb11746748471a1b81e510bb1/FLAG2d20dda7c [2018-12-01 17:00:19,000 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/data/2d39799f7/efe89e7fb11746748471a1b81e510bb1 [2018-12-01 17:00:19,003 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 17:00:19,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 17:00:19,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 17:00:19,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 17:00:19,008 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 17:00:19,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:00:19" (1/1) ... [2018-12-01 17:00:19,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f5ef9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:00:19, skipping insertion in model container [2018-12-01 17:00:19,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:00:19" (1/1) ... [2018-12-01 17:00:19,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 17:00:19,048 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 17:00:19,195 FATAL L292 ToolchainWalker]: 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:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1660) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.lambda$35(StandardFunctionHandler.java:315) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:208) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1320) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:539) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1897) 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:1513) 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:963) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1490) 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:963) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2241) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:539) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:129) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-12-01 17:00:19,198 INFO L168 Benchmark]: Toolchain (without parser) took 194.76 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 941.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-01 17:00:19,199 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 17:00:19,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.59 ms. Allocated memory is still 1.0 GB. Free memory was 951.7 MB in the beginning and 941.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-01 17:00:19,201 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 192.59 ms. Allocated memory is still 1.0 GB. Free memory was 951.7 MB in the beginning and 941.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: 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:834) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-01 17:00:20,239 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 17:00:20,240 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 17:00:20,249 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 17:00:20,249 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 17:00:20,250 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 17:00:20,251 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 17:00:20,252 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 17:00:20,253 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 17:00:20,254 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 17:00:20,254 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 17:00:20,255 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 17:00:20,255 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 17:00:20,256 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 17:00:20,257 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 17:00:20,257 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 17:00:20,258 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 17:00:20,259 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 17:00:20,260 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 17:00:20,261 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 17:00:20,262 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 17:00:20,263 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 17:00:20,265 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 17:00:20,265 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 17:00:20,265 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 17:00:20,266 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 17:00:20,266 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 17:00:20,267 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 17:00:20,267 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 17:00:20,268 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 17:00:20,268 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 17:00:20,269 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 17:00:20,269 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 17:00:20,269 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 17:00:20,270 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 17:00:20,270 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 17:00:20,271 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-01 17:00:20,281 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 17:00:20,281 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 17:00:20,282 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 17:00:20,282 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 17:00:20,282 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 17:00:20,283 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 17:00:20,283 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 17:00:20,283 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 17:00:20,283 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 17:00:20,283 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 17:00:20,283 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 17:00:20,283 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 17:00:20,284 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 17:00:20,284 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 17:00:20,284 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-01 17:00:20,284 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-01 17:00:20,284 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 17:00:20,284 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 17:00:20,284 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 17:00:20,285 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 17:00:20,285 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 17:00:20,285 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 17:00:20,285 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 17:00:20,285 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 17:00:20,285 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 17:00:20,286 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 17:00:20,286 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 17:00:20,286 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 17:00:20,286 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-01 17:00:20,286 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 17:00:20,286 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-01 17:00:20,286 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-01 17:00:20,287 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6812207659d67444abdc9d105ff32acac8458b5 [2018-12-01 17:00:20,309 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 17:00:20,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 17:00:20,319 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 17:00:20,320 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 17:00:20,320 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 17:00:20,320 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0882_true-unreach-call.c [2018-12-01 17:00:20,356 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/data/ca9e7ab6a/7855c09fe762411da5566cf0d26faf25/FLAGc53a58d9b [2018-12-01 17:00:20,698 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 17:00:20,699 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/sv-benchmarks/c/float-newlib/double_req_bl_0882_true-unreach-call.c [2018-12-01 17:00:20,704 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/data/ca9e7ab6a/7855c09fe762411da5566cf0d26faf25/FLAGc53a58d9b [2018-12-01 17:00:20,712 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/data/ca9e7ab6a/7855c09fe762411da5566cf0d26faf25 [2018-12-01 17:00:20,715 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 17:00:20,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 17:00:20,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 17:00:20,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 17:00:20,718 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 17:00:20,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:00:20" (1/1) ... [2018-12-01 17:00:20,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748af0a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:00:20, skipping insertion in model container [2018-12-01 17:00:20,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:00:20" (1/1) ... [2018-12-01 17:00:20,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 17:00:20,751 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 17:00:20,936 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 17:00:20,941 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 17:00:21,030 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 17:00:21,048 INFO L195 MainTranslator]: Completed translation [2018-12-01 17:00:21,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:00:21 WrapperNode [2018-12-01 17:00:21,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 17:00:21,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 17:00:21,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 17:00:21,049 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 17:00:21,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:00:21" (1/1) ... [2018-12-01 17:00:21,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:00:21" (1/1) ... [2018-12-01 17:00:21,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 17:00:21,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 17:00:21,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 17:00:21,070 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 17:00:21,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:00:21" (1/1) ... [2018-12-01 17:00:21,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:00:21" (1/1) ... [2018-12-01 17:00:21,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:00:21" (1/1) ... [2018-12-01 17:00:21,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:00:21" (1/1) ... [2018-12-01 17:00:21,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:00:21" (1/1) ... [2018-12-01 17:00:21,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:00:21" (1/1) ... [2018-12-01 17:00:21,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:00:21" (1/1) ... [2018-12-01 17:00:21,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 17:00:21,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 17:00:21,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 17:00:21,123 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 17:00:21,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:00:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 17:00:21,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-01 17:00:21,155 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_double [2018-12-01 17:00:21,155 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_double [2018-12-01 17:00:21,155 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2018-12-01 17:00:21,155 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2018-12-01 17:00:21,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-01 17:00:21,155 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-12-01 17:00:21,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-12-01 17:00:21,155 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_pow [2018-12-01 17:00:21,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_pow [2018-12-01 17:00:21,155 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 17:00:21,155 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 17:00:21,156 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-12-01 17:00:21,156 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-12-01 17:00:21,156 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-12-01 17:00:21,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-12-01 17:00:21,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 17:00:21,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 17:00:21,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2018-12-01 17:00:21,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 17:00:21,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-01 17:00:21,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 17:00:21,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 17:00:21,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-01 17:00:21,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 17:00:21,332 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:22,247 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:22,672 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:23,535 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:23,560 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:23,578 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:23,591 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:23,615 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:25,756 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:34,097 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:34,210 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:36,888 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:36,910 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:37,355 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:37,384 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:47,604 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:48,044 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:48,072 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:50,419 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:50,439 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:52,927 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:55,084 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:57,262 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:58,551 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:58,583 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:58,605 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:00:58,859 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:01:00,823 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 17:01:00,829 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 17:01:00,829 INFO L280 CfgBuilder]: Removed 60 assue(true) statements. [2018-12-01 17:01:00,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:01:00 BoogieIcfgContainer [2018-12-01 17:01:00,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 17:01:00,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 17:01:00,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 17:01:00,832 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 17:01:00,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 05:00:20" (1/3) ... [2018-12-01 17:01:00,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4408c236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 05:01:00, skipping insertion in model container [2018-12-01 17:01:00,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:00:21" (2/3) ... [2018-12-01 17:01:00,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4408c236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 05:01:00, skipping insertion in model container [2018-12-01 17:01:00,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:01:00" (3/3) ... [2018-12-01 17:01:00,834 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0882_true-unreach-call.c [2018-12-01 17:01:00,840 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 17:01:00,845 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-01 17:01:00,854 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-01 17:01:00,872 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 17:01:00,872 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 17:01:00,872 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 17:01:00,872 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 17:01:00,872 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 17:01:00,872 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 17:01:00,873 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 17:01:00,873 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 17:01:00,873 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 17:01:00,885 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2018-12-01 17:01:00,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-01 17:01:00,889 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 17:01:00,890 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:01:00,891 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 17:01:00,894 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:01:00,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1650283176, now seen corresponding path program 1 times [2018-12-01 17:01:00,897 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 17:01:00,897 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-01 17:01:00,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:01:01,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:01:01,059 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:01:01,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:01:01,069 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 17:01:01,080 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 17:01:01,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 17:01:01,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-01 17:01:01,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-01 17:01:01,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 17:01:01,091 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 2 states. [2018-12-01 17:01:01,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 17:01:01,120 INFO L93 Difference]: Finished difference Result 457 states and 749 transitions. [2018-12-01 17:01:01,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-01 17:01:01,120 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-12-01 17:01:01,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 17:01:01,127 INFO L225 Difference]: With dead ends: 457 [2018-12-01 17:01:01,127 INFO L226 Difference]: Without dead ends: 228 [2018-12-01 17:01:01,130 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 17:01:01,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2018-12-01 17:01:01,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2018-12-01 17:01:01,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2018-12-01 17:01:01,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 309 transitions. [2018-12-01 17:01:01,162 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 309 transitions. Word has length 19 [2018-12-01 17:01:01,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 17:01:01,162 INFO L480 AbstractCegarLoop]: Abstraction has 228 states and 309 transitions. [2018-12-01 17:01:01,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-01 17:01:01,162 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 309 transitions. [2018-12-01 17:01:01,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-01 17:01:01,163 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 17:01:01,163 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:01:01,163 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 17:01:01,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:01:01,164 INFO L82 PathProgramCache]: Analyzing trace with hash -166928027, now seen corresponding path program 1 times [2018-12-01 17:01:01,164 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 17:01:01,164 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-01 17:01:01,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:01:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:01:01,397 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:01:01,444 INFO L683 Elim1Store]: detected equality via solver [2018-12-01 17:01:01,445 INFO L683 Elim1Store]: detected equality via solver [2018-12-01 17:01:01,449 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-12-01 17:01:01,517 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-12-01 17:01:01,518 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 17:01:01,540 INFO L478 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 24 treesize of output 18 [2018-12-01 17:01:01,547 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 4 [2018-12-01 17:01:01,547 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-01 17:01:01,551 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 17:01:01,554 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-01 17:01:01,565 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-01 17:01:01,565 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2018-12-01 17:01:01,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:01:01,669 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 17:01:01,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 17:01:01,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-01 17:01:01,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 17:01:01,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 17:01:01,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-01 17:01:01,681 INFO L87 Difference]: Start difference. First operand 228 states and 309 transitions. Second operand 7 states. [2018-12-01 17:01:13,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 17:01:13,790 INFO L93 Difference]: Finished difference Result 245 states and 326 transitions. [2018-12-01 17:01:13,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 17:01:13,911 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-12-01 17:01:13,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 17:01:13,914 INFO L225 Difference]: With dead ends: 245 [2018-12-01 17:01:13,914 INFO L226 Difference]: Without dead ends: 230 [2018-12-01 17:01:13,915 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-01 17:01:13,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-12-01 17:01:13,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 228. [2018-12-01 17:01:13,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2018-12-01 17:01:13,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 308 transitions. [2018-12-01 17:01:13,927 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 308 transitions. Word has length 21 [2018-12-01 17:01:13,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 17:01:13,928 INFO L480 AbstractCegarLoop]: Abstraction has 228 states and 308 transitions. [2018-12-01 17:01:13,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 17:01:13,928 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 308 transitions. [2018-12-01 17:01:13,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 17:01:13,928 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 17:01:13,929 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:01:13,929 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 17:01:13,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:01:13,929 INFO L82 PathProgramCache]: Analyzing trace with hash -857621751, now seen corresponding path program 1 times [2018-12-01 17:01:13,929 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 17:01:13,929 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/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 [2018-12-01 17:01:13,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:01:14,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:01:14,104 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:01:14,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:01:14,194 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 17:01:14,205 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 17:01:14,205 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-01 17:01:14,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 17:01:14,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 17:01:14,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-01 17:01:14,206 INFO L87 Difference]: Start difference. First operand 228 states and 308 transitions. Second operand 7 states. [2018-12-01 17:01:25,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 17:01:25,912 INFO L93 Difference]: Finished difference Result 283 states and 374 transitions. [2018-12-01 17:01:25,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 17:01:25,913 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-12-01 17:01:25,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 17:01:25,914 INFO L225 Difference]: With dead ends: 283 [2018-12-01 17:01:25,914 INFO L226 Difference]: Without dead ends: 267 [2018-12-01 17:01:25,915 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-01 17:01:25,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2018-12-01 17:01:25,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 228. [2018-12-01 17:01:25,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2018-12-01 17:01:25,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 305 transitions. [2018-12-01 17:01:25,927 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 305 transitions. Word has length 23 [2018-12-01 17:01:25,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 17:01:25,928 INFO L480 AbstractCegarLoop]: Abstraction has 228 states and 305 transitions. [2018-12-01 17:01:25,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 17:01:25,928 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 305 transitions. [2018-12-01 17:01:25,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 17:01:25,928 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 17:01:25,928 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:01:25,929 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 17:01:25,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:01:25,929 INFO L82 PathProgramCache]: Analyzing trace with hash 29881930, now seen corresponding path program 1 times [2018-12-01 17:01:25,929 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 17:01:25,929 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/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 [2018-12-01 17:01:25,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:01:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:01:26,186 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:01:26,252 INFO L683 Elim1Store]: detected equality via solver [2018-12-01 17:01:26,253 INFO L683 Elim1Store]: detected equality via solver [2018-12-01 17:01:26,254 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-12-01 17:01:26,292 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 24 [2018-12-01 17:01:26,292 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 17:01:26,314 INFO L478 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 24 treesize of output 18 [2018-12-01 17:01:26,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 4 [2018-12-01 17:01:26,324 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-01 17:01:26,330 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 17:01:26,336 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-01 17:01:26,358 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-01 17:01:26,358 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:49, output treesize:21 [2018-12-01 17:01:26,402 INFO L683 Elim1Store]: detected equality via solver [2018-12-01 17:01:26,403 INFO L683 Elim1Store]: detected equality via solver [2018-12-01 17:01:26,404 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2018-12-01 17:01:26,462 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 43 [2018-12-01 17:01:26,505 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 9 [2018-12-01 17:01:26,506 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-01 17:01:26,527 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 17:01:26,549 INFO L478 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 17 treesize of output 13 [2018-12-01 17:01:26,555 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2018-12-01 17:01:26,555 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-01 17:01:26,557 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 17:01:26,565 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-01 17:01:26,592 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-01 17:01:26,592 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:74, output treesize:35 [2018-12-01 17:01:26,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:01:26,858 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 17:01:26,868 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 17:01:26,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-01 17:01:26,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-01 17:01:26,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-01 17:01:26,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-12-01 17:01:26,869 INFO L87 Difference]: Start difference. First operand 228 states and 305 transitions. Second operand 9 states. [2018-12-01 17:01:27,753 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-12-01 17:01:56,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 17:01:56,421 INFO L93 Difference]: Finished difference Result 253 states and 331 transitions. [2018-12-01 17:01:56,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-01 17:01:56,541 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-12-01 17:01:56,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 17:01:56,542 INFO L225 Difference]: With dead ends: 253 [2018-12-01 17:01:56,542 INFO L226 Difference]: Without dead ends: 237 [2018-12-01 17:01:56,543 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-12-01 17:01:56,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2018-12-01 17:01:56,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 227. [2018-12-01 17:01:56,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2018-12-01 17:01:56,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 303 transitions. [2018-12-01 17:01:56,558 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 303 transitions. Word has length 23 [2018-12-01 17:01:56,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 17:01:56,558 INFO L480 AbstractCegarLoop]: Abstraction has 227 states and 303 transitions. [2018-12-01 17:01:56,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-01 17:01:56,559 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 303 transitions. [2018-12-01 17:01:56,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-01 17:01:56,559 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 17:01:56,559 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:01:56,559 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 17:01:56,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:01:56,560 INFO L82 PathProgramCache]: Analyzing trace with hash -2076363094, now seen corresponding path program 1 times [2018-12-01 17:01:56,560 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 17:01:56,560 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-01 17:01:56,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:01:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:01:56,893 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:01:56,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:01:56,967 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 17:01:56,978 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 17:01:56,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-01 17:01:56,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 17:01:56,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 17:01:56,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-01 17:01:56,979 INFO L87 Difference]: Start difference. First operand 227 states and 303 transitions. Second operand 6 states. [2018-12-01 17:02:07,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 17:02:07,625 INFO L93 Difference]: Finished difference Result 244 states and 320 transitions. [2018-12-01 17:02:07,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 17:02:07,746 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2018-12-01 17:02:07,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 17:02:07,747 INFO L225 Difference]: With dead ends: 244 [2018-12-01 17:02:07,747 INFO L226 Difference]: Without dead ends: 229 [2018-12-01 17:02:07,747 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-01 17:02:07,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2018-12-01 17:02:07,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 227. [2018-12-01 17:02:07,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2018-12-01 17:02:07,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 302 transitions. [2018-12-01 17:02:07,762 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 302 transitions. Word has length 27 [2018-12-01 17:02:07,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 17:02:07,762 INFO L480 AbstractCegarLoop]: Abstraction has 227 states and 302 transitions. [2018-12-01 17:02:07,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 17:02:07,762 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 302 transitions. [2018-12-01 17:02:07,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-01 17:02:07,763 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 17:02:07,763 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:02:07,763 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 17:02:07,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:02:07,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1951936010, now seen corresponding path program 1 times [2018-12-01 17:02:07,763 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 17:02:07,763 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/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 [2018-12-01 17:02:07,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:02:08,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:02:08,534 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:02:10,936 WARN L832 $PredicateComparison]: unable to prove that (and (= (fp.div roundNearestTiesToEven c_~one_pow~0 |c___ieee754_pow_#in~x|) |c___ieee754_pow_#res|) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) c_~one_pow~0)) is different from false [2018-12-01 17:02:13,187 WARN L854 $PredicateComparison]: unable to prove that (and (= (fp.div roundNearestTiesToEven c_~one_pow~0 |c___ieee754_pow_#in~x|) |c___ieee754_pow_#res|) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) c_~one_pow~0)) is different from true [2018-12-01 17:02:13,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:02:13,223 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 17:02:13,245 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 17:02:13,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-01 17:02:13,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-01 17:02:13,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-01 17:02:13,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=29, Unknown=2, NotChecked=10, Total=56 [2018-12-01 17:02:13,246 INFO L87 Difference]: Start difference. First operand 227 states and 302 transitions. Second operand 8 states. [2018-12-01 17:02:19,450 WARN L832 $PredicateComparison]: unable to prove that (and (= (fp.div roundNearestTiesToEven c_~one_pow~0 |c___ieee754_pow_#in~x|) |c___ieee754_pow_#res|) (= c___ieee754_pow_~x |c___ieee754_pow_#in~x|) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) c_~one_pow~0)) is different from false [2018-12-01 17:02:31,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 17:02:31,452 INFO L93 Difference]: Finished difference Result 272 states and 355 transitions. [2018-12-01 17:02:31,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-01 17:02:31,454 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-12-01 17:02:31,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 17:02:31,455 INFO L225 Difference]: With dead ends: 272 [2018-12-01 17:02:31,455 INFO L226 Difference]: Without dead ends: 269 [2018-12-01 17:02:31,455 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=22, Invalid=39, Unknown=3, NotChecked=26, Total=90 [2018-12-01 17:02:31,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2018-12-01 17:02:31,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 231. [2018-12-01 17:02:31,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2018-12-01 17:02:31,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 306 transitions. [2018-12-01 17:02:31,468 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 306 transitions. Word has length 27 [2018-12-01 17:02:31,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 17:02:31,469 INFO L480 AbstractCegarLoop]: Abstraction has 231 states and 306 transitions. [2018-12-01 17:02:31,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-01 17:02:31,469 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 306 transitions. [2018-12-01 17:02:31,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-01 17:02:31,469 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 17:02:31,470 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:02:31,470 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 17:02:31,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:02:31,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1455527605, now seen corresponding path program 1 times [2018-12-01 17:02:31,470 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 17:02:31,470 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/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 [2018-12-01 17:02:31,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:02:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:02:31,635 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:02:31,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:02:31,760 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 17:02:31,775 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 17:02:31,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-01 17:02:31,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-01 17:02:31,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-01 17:02:31,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-01 17:02:31,775 INFO L87 Difference]: Start difference. First operand 231 states and 306 transitions. Second operand 8 states. [2018-12-01 17:02:42,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 17:02:42,409 INFO L93 Difference]: Finished difference Result 248 states and 323 transitions. [2018-12-01 17:02:42,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 17:02:42,542 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-12-01 17:02:42,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 17:02:42,543 INFO L225 Difference]: With dead ends: 248 [2018-12-01 17:02:42,543 INFO L226 Difference]: Without dead ends: 233 [2018-12-01 17:02:42,543 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-12-01 17:02:42,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2018-12-01 17:02:42,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 231. [2018-12-01 17:02:42,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2018-12-01 17:02:42,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 305 transitions. [2018-12-01 17:02:42,558 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 305 transitions. Word has length 27 [2018-12-01 17:02:42,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 17:02:42,558 INFO L480 AbstractCegarLoop]: Abstraction has 231 states and 305 transitions. [2018-12-01 17:02:42,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-01 17:02:42,559 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 305 transitions. [2018-12-01 17:02:42,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 17:02:42,559 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 17:02:42,559 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:02:42,560 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 17:02:42,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:02:42,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1297315135, now seen corresponding path program 1 times [2018-12-01 17:02:42,560 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 17:02:42,560 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/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 [2018-12-01 17:02:42,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:02:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:02:42,737 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:02:42,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:02:42,833 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 17:02:42,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 17:02:42,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-01 17:02:42,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 17:02:42,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 17:02:42,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-01 17:02:42,844 INFO L87 Difference]: Start difference. First operand 231 states and 305 transitions. Second operand 7 states. [2018-12-01 17:02:53,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 17:02:53,000 INFO L93 Difference]: Finished difference Result 347 states and 448 transitions. [2018-12-01 17:02:53,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 17:02:53,001 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2018-12-01 17:02:53,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 17:02:53,002 INFO L225 Difference]: With dead ends: 347 [2018-12-01 17:02:53,002 INFO L226 Difference]: Without dead ends: 263 [2018-12-01 17:02:53,002 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-12-01 17:02:53,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2018-12-01 17:02:53,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 225. [2018-12-01 17:02:53,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-12-01 17:02:53,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 292 transitions. [2018-12-01 17:02:53,017 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 292 transitions. Word has length 29 [2018-12-01 17:02:53,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 17:02:53,017 INFO L480 AbstractCegarLoop]: Abstraction has 225 states and 292 transitions. [2018-12-01 17:02:53,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 17:02:53,018 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 292 transitions. [2018-12-01 17:02:53,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 17:02:53,018 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 17:02:53,018 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:02:53,018 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 17:02:53,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:02:53,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1799940619, now seen corresponding path program 1 times [2018-12-01 17:02:53,019 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 17:02:53,019 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-12-01 17:02:53,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:02:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:02:53,198 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:02:53,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:02:53,280 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 17:02:53,289 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 17:02:53,290 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-01 17:02:53,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 17:02:53,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 17:02:53,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-01 17:02:53,290 INFO L87 Difference]: Start difference. First operand 225 states and 292 transitions. Second operand 7 states. [2018-12-01 17:03:06,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 17:03:06,524 INFO L93 Difference]: Finished difference Result 233 states and 300 transitions. [2018-12-01 17:03:06,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 17:03:06,525 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2018-12-01 17:03:06,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 17:03:06,526 INFO L225 Difference]: With dead ends: 233 [2018-12-01 17:03:06,526 INFO L226 Difference]: Without dead ends: 230 [2018-12-01 17:03:06,526 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-01 17:03:06,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-12-01 17:03:06,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2018-12-01 17:03:06,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-12-01 17:03:06,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 293 transitions. [2018-12-01 17:03:06,539 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 293 transitions. Word has length 29 [2018-12-01 17:03:06,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 17:03:06,540 INFO L480 AbstractCegarLoop]: Abstraction has 226 states and 293 transitions. [2018-12-01 17:03:06,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 17:03:06,540 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 293 transitions. [2018-12-01 17:03:06,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 17:03:06,540 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 17:03:06,540 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:03:06,541 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 17:03:06,541 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:03:06,541 INFO L82 PathProgramCache]: Analyzing trace with hash -990593993, now seen corresponding path program 1 times [2018-12-01 17:03:06,541 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 17:03:06,541 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-12-01 17:03:06,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:03:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:03:06,719 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:03:06,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:03:06,786 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 17:03:06,796 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 17:03:06,796 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-01 17:03:06,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 17:03:06,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 17:03:06,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-01 17:03:06,797 INFO L87 Difference]: Start difference. First operand 226 states and 293 transitions. Second operand 6 states. [2018-12-01 17:03:18,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 17:03:18,632 INFO L93 Difference]: Finished difference Result 296 states and 379 transitions. [2018-12-01 17:03:18,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 17:03:18,634 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2018-12-01 17:03:18,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 17:03:18,635 INFO L225 Difference]: With dead ends: 296 [2018-12-01 17:03:18,635 INFO L226 Difference]: Without dead ends: 228 [2018-12-01 17:03:18,635 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-01 17:03:18,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2018-12-01 17:03:18,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 190. [2018-12-01 17:03:18,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-12-01 17:03:18,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 237 transitions. [2018-12-01 17:03:18,650 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 237 transitions. Word has length 29 [2018-12-01 17:03:18,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 17:03:18,650 INFO L480 AbstractCegarLoop]: Abstraction has 190 states and 237 transitions. [2018-12-01 17:03:18,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 17:03:18,650 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 237 transitions. [2018-12-01 17:03:18,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-01 17:03:18,651 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 17:03:18,651 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:03:18,651 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 17:03:18,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:03:18,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1745994737, now seen corresponding path program 1 times [2018-12-01 17:03:18,652 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 17:03:18,652 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2018-12-01 17:03:18,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:03:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:03:19,467 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:03:24,101 WARN L854 $PredicateComparison]: unable to prove that (and (= (fp.div roundNearestTiesToEven c_~one_pow~0 |c___ieee754_pow_#in~x|) |c___ieee754_pow_#res|) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) c_~one_pow~0)) is different from true [2018-12-01 17:03:24,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:03:24,283 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 17:03:24,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 17:03:24,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-12-01 17:03:24,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-01 17:03:24,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-01 17:03:24,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=110, Unknown=1, NotChecked=20, Total=156 [2018-12-01 17:03:24,300 INFO L87 Difference]: Start difference. First operand 190 states and 237 transitions. Second operand 13 states. [2018-12-01 17:03:42,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 17:03:42,204 INFO L93 Difference]: Finished difference Result 226 states and 282 transitions. [2018-12-01 17:03:42,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-01 17:03:42,205 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 35 [2018-12-01 17:03:42,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 17:03:42,206 INFO L225 Difference]: With dead ends: 226 [2018-12-01 17:03:42,206 INFO L226 Difference]: Without dead ends: 216 [2018-12-01 17:03:42,207 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=69, Invalid=276, Unknown=1, NotChecked=34, Total=380 [2018-12-01 17:03:42,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2018-12-01 17:03:42,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 189. [2018-12-01 17:03:42,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-12-01 17:03:42,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 235 transitions. [2018-12-01 17:03:42,219 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 235 transitions. Word has length 35 [2018-12-01 17:03:42,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 17:03:42,219 INFO L480 AbstractCegarLoop]: Abstraction has 189 states and 235 transitions. [2018-12-01 17:03:42,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-01 17:03:42,219 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 235 transitions. [2018-12-01 17:03:42,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-01 17:03:42,220 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 17:03:42,220 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:03:42,220 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 17:03:42,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:03:42,220 INFO L82 PathProgramCache]: Analyzing trace with hash 422241547, now seen corresponding path program 1 times [2018-12-01 17:03:42,220 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 17:03:42,220 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2018-12-01 17:03:42,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:03:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:03:43,007 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:03:43,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:03:43,186 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 17:03:43,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 17:03:43,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-01 17:03:43,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-01 17:03:43,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-01 17:03:43,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-01 17:03:43,204 INFO L87 Difference]: Start difference. First operand 189 states and 235 transitions. Second operand 8 states. [2018-12-01 17:03:48,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 17:03:48,441 INFO L93 Difference]: Finished difference Result 242 states and 299 transitions. [2018-12-01 17:03:48,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 17:03:48,442 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2018-12-01 17:03:48,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 17:03:48,442 INFO L225 Difference]: With dead ends: 242 [2018-12-01 17:03:48,442 INFO L226 Difference]: Without dead ends: 165 [2018-12-01 17:03:48,443 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-12-01 17:03:48,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-12-01 17:03:48,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 152. [2018-12-01 17:03:48,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-12-01 17:03:48,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 187 transitions. [2018-12-01 17:03:48,455 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 187 transitions. Word has length 36 [2018-12-01 17:03:48,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 17:03:48,455 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 187 transitions. [2018-12-01 17:03:48,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-01 17:03:48,455 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 187 transitions. [2018-12-01 17:03:48,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-01 17:03:48,456 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 17:03:48,456 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:03:48,456 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 17:03:48,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:03:48,456 INFO L82 PathProgramCache]: Analyzing trace with hash 627806428, now seen corresponding path program 1 times [2018-12-01 17:03:48,457 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 17:03:48,457 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2018-12-01 17:03:48,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:03:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:03:48,658 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:03:48,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:03:48,852 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 17:03:48,862 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 17:03:48,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-01 17:03:48,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-01 17:03:48,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-01 17:03:48,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-12-01 17:03:48,862 INFO L87 Difference]: Start difference. First operand 152 states and 187 transitions. Second operand 12 states. [2018-12-01 17:04:02,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 17:04:02,360 INFO L93 Difference]: Finished difference Result 157 states and 192 transitions. [2018-12-01 17:04:02,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-01 17:04:02,361 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2018-12-01 17:04:02,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 17:04:02,362 INFO L225 Difference]: With dead ends: 157 [2018-12-01 17:04:02,362 INFO L226 Difference]: Without dead ends: 144 [2018-12-01 17:04:02,362 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-01 17:04:02,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-12-01 17:04:02,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-12-01 17:04:02,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-12-01 17:04:02,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 178 transitions. [2018-12-01 17:04:02,369 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 178 transitions. Word has length 37 [2018-12-01 17:04:02,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 17:04:02,369 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 178 transitions. [2018-12-01 17:04:02,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-01 17:04:02,369 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 178 transitions. [2018-12-01 17:04:02,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-12-01 17:04:02,369 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 17:04:02,369 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:04:02,370 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 17:04:02,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:04:02,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1092260135, now seen corresponding path program 1 times [2018-12-01 17:04:02,370 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 17:04:02,370 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d4fd04-8fa4-4289-92ba-8e10fd815b31/bin-2019/uautomizer/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2018-12-01 17:04:02,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:04:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:04:03,191 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:04:03,358 INFO L478 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 66 treesize of output 60 [2018-12-01 17:04:03,363 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 60 treesize of output 55 [2018-12-01 17:04:03,377 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27 [2018-12-01 17:04:03,377 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-01 17:04:03,383 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 17:04:03,388 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 17:04:03,414 INFO L267 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. [2018-12-01 17:04:03,415 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:90, output treesize:51 [2018-12-01 17:04:06,138 WARN L832 $PredicateComparison]: unable to prove that (and (exists ((|v_q#valueAsBitvector_33| (_ BitVec 64)) (|v_q#valueAsBitvector_32| (_ BitVec 64))) (and (= c___ieee754_pow_~z~1 (fp.div roundNearestTiesToEven c_~one_pow~0 (let ((.cse0 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_32|)) ((_ extract 31 0) |v_q#valueAsBitvector_33|)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))))) (= (fp ((_ extract 63 63) |v_q#valueAsBitvector_32|) ((_ extract 62 52) |v_q#valueAsBitvector_32|) ((_ extract 51 0) |v_q#valueAsBitvector_32|)) |c___ieee754_pow_#in~x|) (= (fp ((_ extract 63 63) |v_q#valueAsBitvector_33|) ((_ extract 62 52) |v_q#valueAsBitvector_33|) ((_ extract 51 0) |v_q#valueAsBitvector_33|)) |c___ieee754_pow_#in~x|))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) c_~one_pow~0)) is different from false [2018-12-01 17:04:08,458 WARN L832 $PredicateComparison]: unable to prove that (and (exists ((|v_q#valueAsBitvector_33| (_ BitVec 64)) (|v_q#valueAsBitvector_32| (_ BitVec 64))) (and (= |c___ieee754_pow_#res| (fp.div roundNearestTiesToEven c_~one_pow~0 (let ((.cse0 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_32|)) ((_ extract 31 0) |v_q#valueAsBitvector_33|)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))))) (= (fp ((_ extract 63 63) |v_q#valueAsBitvector_32|) ((_ extract 62 52) |v_q#valueAsBitvector_32|) ((_ extract 51 0) |v_q#valueAsBitvector_32|)) |c___ieee754_pow_#in~x|) (= (fp ((_ extract 63 63) |v_q#valueAsBitvector_33|) ((_ extract 62 52) |v_q#valueAsBitvector_33|) ((_ extract 51 0) |v_q#valueAsBitvector_33|)) |c___ieee754_pow_#in~x|))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) c_~one_pow~0)) is different from false [2018-12-01 17:04:26,853 WARN L180 SmtUtils]: Spent 1.61 s on a formula simplification that was a NOOP. DAG size: 31 [2018-12-01 17:04:32,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:04:32,090 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 17:04:32,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 17:04:32,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-12-01 17:04:32,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-01 17:04:32,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-01 17:04:32,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=146, Unknown=5, NotChecked=50, Total=240 [2018-12-01 17:04:32,109 INFO L87 Difference]: Start difference. First operand 144 states and 178 transitions. Second operand 16 states. [2018-12-01 17:05:06,246 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-12-01 17:05:06,246 FATAL L265 ToolchainWalker]: 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) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:131) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:651) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:255) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:270) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:715) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:628) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2018-12-01 17:05:06,249 INFO L168 Benchmark]: Toolchain (without parser) took 285533.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 944.7 MB in the beginning and 788.3 MB in the end (delta: 156.5 MB). Peak memory consumption was 343.1 MB. Max. memory is 11.5 GB. [2018-12-01 17:05:06,249 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 17:05:06,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). Peak memory consumption was 39.7 MB. Max. memory is 11.5 GB. [2018-12-01 17:05:06,250 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 17:05:06,250 INFO L168 Benchmark]: Boogie Preprocessor took 53.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-01 17:05:06,250 INFO L168 Benchmark]: RCFGBuilder took 39706.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.1 MB in the end (delta: 104.7 MB). Peak memory consumption was 104.7 MB. Max. memory is 11.5 GB. [2018-12-01 17:05:06,251 INFO L168 Benchmark]: TraceAbstraction took 245418.44 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.5 MB). Free memory was 995.1 MB in the beginning and 788.3 MB in the end (delta: 206.8 MB). Peak memory consumption was 272.4 MB. Max. memory is 11.5 GB. [2018-12-01 17:05:06,252 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 332.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). Peak memory consumption was 39.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 39706.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.1 MB in the end (delta: 104.7 MB). Peak memory consumption was 104.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 245418.44 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.5 MB). Free memory was 995.1 MB in the beginning and 788.3 MB in the end (delta: 206.8 MB). Peak memory consumption was 272.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...