./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0870b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0870b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 08d6302d3ed7bf310f181699a2211422e4771bf9 ............................................................................................................................................................................. 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_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0870b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 08d6302d3ed7bf310f181699a2211422e4771bf9 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_3 (_ bv4 32) ((_ extract 63 32) |v_q#valueAsBitvector_30|)) --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 22:12:33,211 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 22:12:33,212 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 22:12:33,221 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 22:12:33,221 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 22:12:33,222 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 22:12:33,223 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 22:12:33,224 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 22:12:33,225 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 22:12:33,225 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 22:12:33,226 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 22:12:33,226 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 22:12:33,227 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 22:12:33,227 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 22:12:33,228 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 22:12:33,229 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 22:12:33,229 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 22:12:33,230 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 22:12:33,232 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 22:12:33,233 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 22:12:33,233 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 22:12:33,234 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 22:12:33,236 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 22:12:33,236 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 22:12:33,236 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 22:12:33,237 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 22:12:33,237 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 22:12:33,238 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 22:12:33,238 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 22:12:33,239 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 22:12:33,239 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 22:12:33,240 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 22:12:33,240 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 22:12:33,240 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 22:12:33,240 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 22:12:33,241 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 22:12:33,241 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-22 22:12:33,252 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 22:12:33,252 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 22:12:33,252 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 22:12:33,253 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 22:12:33,253 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 22:12:33,253 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 22:12:33,253 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 22:12:33,253 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-22 22:12:33,253 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 22:12:33,253 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 22:12:33,254 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-22 22:12:33,254 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-22 22:12:33,254 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 22:12:33,254 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 22:12:33,254 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 22:12:33,255 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 22:12:33,255 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 22:12:33,255 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 22:12:33,255 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 22:12:33,255 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 22:12:33,255 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 22:12:33,255 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 22:12:33,255 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 22:12:33,256 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 22:12:33,256 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 22:12:33,256 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 22:12:33,256 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 22:12:33,256 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 22:12:33,256 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 22:12:33,256 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 22:12:33,257 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 22:12:33,257 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 22:12:33,257 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 22:12:33,257 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-22 22:12:33,257 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 22:12:33,257 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 22:12:33,257 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-22 22:12:33,257 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan 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 -> Taipan 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 -> 08d6302d3ed7bf310f181699a2211422e4771bf9 [2018-11-22 22:12:33,281 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 22:12:33,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 22:12:33,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 22:12:33,294 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 22:12:33,294 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 22:12:33,294 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0870b_true-unreach-call.c [2018-11-22 22:12:33,341 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/data/a20c08c4c/448dc4778abf4aca8389433ab5631d72/FLAG35322dc83 [2018-11-22 22:12:33,732 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 22:12:33,733 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/sv-benchmarks/c/float-newlib/double_req_bl_0870b_true-unreach-call.c [2018-11-22 22:12:33,741 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/data/a20c08c4c/448dc4778abf4aca8389433ab5631d72/FLAG35322dc83 [2018-11-22 22:12:34,130 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/data/a20c08c4c/448dc4778abf4aca8389433ab5631d72 [2018-11-22 22:12:34,132 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 22:12:34,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 22:12:34,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 22:12:34,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 22:12:34,136 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 22:12:34,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:12:34" (1/1) ... [2018-11-22 22:12:34,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703e8e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:12:34, skipping insertion in model container [2018-11-22 22:12:34,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:12:34" (1/1) ... [2018-11-22 22:12:34,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 22:12:34,176 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 22:12:34,357 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:825) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1318) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.lambda$39(StandardFunctionHandler.java:319) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:207) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1310) 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:1887) 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:1503) 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:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1480) 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:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1332) 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:3436) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2231) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:538) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:129) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-22 22:12:34,360 INFO L168 Benchmark]: Toolchain (without parser) took 227.88 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 943.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-22 22:12:34,362 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:12:34,362 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.28 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 943.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-22 22:12:34,363 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 226.28 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 943.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 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:825) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-22 22:12:35,554 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 22:12:35,556 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 22:12:35,563 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 22:12:35,563 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 22:12:35,564 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 22:12:35,565 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 22:12:35,566 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 22:12:35,567 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 22:12:35,568 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 22:12:35,569 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 22:12:35,569 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 22:12:35,569 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 22:12:35,570 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 22:12:35,570 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 22:12:35,571 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 22:12:35,571 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 22:12:35,572 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 22:12:35,573 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 22:12:35,574 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 22:12:35,574 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 22:12:35,575 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 22:12:35,576 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 22:12:35,576 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 22:12:35,576 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 22:12:35,577 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 22:12:35,578 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 22:12:35,578 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 22:12:35,578 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 22:12:35,579 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 22:12:35,579 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 22:12:35,580 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 22:12:35,580 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 22:12:35,580 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 22:12:35,581 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 22:12:35,581 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 22:12:35,581 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-22 22:12:35,592 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 22:12:35,592 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 22:12:35,592 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 22:12:35,593 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 22:12:35,593 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 22:12:35,593 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 22:12:35,593 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 22:12:35,593 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 22:12:35,593 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 22:12:35,593 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 22:12:35,594 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 22:12:35,594 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 22:12:35,594 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 22:12:35,594 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 22:12:35,594 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 22:12:35,595 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 22:12:35,595 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 22:12:35,595 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-22 22:12:35,595 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-22 22:12:35,595 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 22:12:35,595 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 22:12:35,595 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 22:12:35,596 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 22:12:35,596 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 22:12:35,596 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 22:12:35,596 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 22:12:35,596 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 22:12:35,596 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 22:12:35,597 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 22:12:35,597 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 22:12:35,597 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 22:12:35,597 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-22 22:12:35,597 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 22:12:35,597 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-22 22:12:35,597 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-22 22:12:35,598 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_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan 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 -> Taipan 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 -> 08d6302d3ed7bf310f181699a2211422e4771bf9 [2018-11-22 22:12:35,628 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 22:12:35,637 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 22:12:35,639 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 22:12:35,641 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 22:12:35,641 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 22:12:35,642 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0870b_true-unreach-call.c [2018-11-22 22:12:35,688 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/data/5c08fb72d/c13b289eb52646eb99a8c4236e8c8b38/FLAGf89240709 [2018-11-22 22:12:36,042 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 22:12:36,042 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/sv-benchmarks/c/float-newlib/double_req_bl_0870b_true-unreach-call.c [2018-11-22 22:12:36,050 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/data/5c08fb72d/c13b289eb52646eb99a8c4236e8c8b38/FLAGf89240709 [2018-11-22 22:12:36,451 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/data/5c08fb72d/c13b289eb52646eb99a8c4236e8c8b38 [2018-11-22 22:12:36,453 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 22:12:36,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 22:12:36,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 22:12:36,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 22:12:36,456 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 22:12:36,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:12:36" (1/1) ... [2018-11-22 22:12:36,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6354237c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:12:36, skipping insertion in model container [2018-11-22 22:12:36,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:12:36" (1/1) ... [2018-11-22 22:12:36,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 22:12:36,492 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 22:12:36,710 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:12:36,717 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 22:12:36,798 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:12:36,864 INFO L195 MainTranslator]: Completed translation [2018-11-22 22:12:36,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:12:36 WrapperNode [2018-11-22 22:12:36,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 22:12:36,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 22:12:36,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 22:12:36,865 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 22:12:36,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:12:36" (1/1) ... [2018-11-22 22:12:36,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:12:36" (1/1) ... [2018-11-22 22:12:36,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 22:12:36,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 22:12:36,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 22:12:36,888 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 22:12:36,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:12:36" (1/1) ... [2018-11-22 22:12:36,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:12:36" (1/1) ... [2018-11-22 22:12:36,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:12:36" (1/1) ... [2018-11-22 22:12:36,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:12:36" (1/1) ... [2018-11-22 22:12:36,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:12:36" (1/1) ... [2018-11-22 22:12:36,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:12:36" (1/1) ... [2018-11-22 22:12:36,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:12:36" (1/1) ... [2018-11-22 22:12:36,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 22:12:36,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 22:12:36,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 22:12:36,951 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 22:12:36,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:12:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 22:12:37,000 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-22 22:12:37,000 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-22 22:12:37,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-22 22:12:37,000 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_double [2018-11-22 22:12:37,000 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_double [2018-11-22 22:12:37,001 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2018-11-22 22:12:37,001 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2018-11-22 22:12:37,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-22 22:12:37,001 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_pow [2018-11-22 22:12:37,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_pow [2018-11-22 22:12:37,001 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 22:12:37,001 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 22:12:37,001 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-11-22 22:12:37,001 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-11-22 22:12:37,002 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-11-22 22:12:37,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-11-22 22:12:37,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 22:12:37,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 22:12:37,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2018-11-22 22:12:37,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-22 22:12:37,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-22 22:12:37,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 22:12:37,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 22:12:37,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-22 22:12:37,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-22 22:12:37,277 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:12:38,048 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:12:38,349 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:12:39,254 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:12:39,267 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:12:39,278 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:12:39,293 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:12:46,927 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:12:47,060 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:12:49,738 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:12:49,757 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:12:49,999 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:12:50,030 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:13:02,505 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:13:03,108 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:13:03,128 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:13:05,470 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:13:05,486 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:13:08,000 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:13:10,149 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:13:12,321 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:13:12,958 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:13:15,093 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:13:15,144 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:13:15,157 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:13:15,501 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:13:18,264 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:13:18,269 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 22:13:18,269 INFO L280 CfgBuilder]: Removed 58 assue(true) statements. [2018-11-22 22:13:18,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:13:18 BoogieIcfgContainer [2018-11-22 22:13:18,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 22:13:18,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 22:13:18,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 22:13:18,277 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 22:13:18,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:12:36" (1/3) ... [2018-11-22 22:13:18,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4427b695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:13:18, skipping insertion in model container [2018-11-22 22:13:18,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:12:36" (2/3) ... [2018-11-22 22:13:18,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4427b695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:13:18, skipping insertion in model container [2018-11-22 22:13:18,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:13:18" (3/3) ... [2018-11-22 22:13:18,281 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0870b_true-unreach-call.c [2018-11-22 22:13:18,290 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 22:13:18,296 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 22:13:18,305 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 22:13:18,324 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 22:13:18,324 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 22:13:18,324 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 22:13:18,324 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 22:13:18,324 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 22:13:18,325 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 22:13:18,325 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 22:13:18,325 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 22:13:18,325 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 22:13:18,341 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2018-11-22 22:13:18,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-22 22:13:18,347 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:13:18,347 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] [2018-11-22 22:13:18,349 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:13:18,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:13:18,354 INFO L82 PathProgramCache]: Analyzing trace with hash 990767779, now seen corresponding path program 1 times [2018-11-22 22:13:18,358 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 22:13:18,358 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-22 22:13:18,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:13:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:13:18,550 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:13:18,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:13:18,562 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 22:13:18,573 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:13:18,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-22 22:13:18,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-22 22:13:18,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-22 22:13:18,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-22 22:13:18,585 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 2 states. [2018-11-22 22:13:18,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:13:18,622 INFO L93 Difference]: Finished difference Result 447 states and 732 transitions. [2018-11-22 22:13:18,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-22 22:13:18,623 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-22 22:13:18,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:13:18,631 INFO L225 Difference]: With dead ends: 447 [2018-11-22 22:13:18,631 INFO L226 Difference]: Without dead ends: 223 [2018-11-22 22:13:18,633 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-22 22:13:18,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-11-22 22:13:18,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2018-11-22 22:13:18,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-11-22 22:13:18,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 303 transitions. [2018-11-22 22:13:18,666 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 303 transitions. Word has length 22 [2018-11-22 22:13:18,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:13:18,667 INFO L480 AbstractCegarLoop]: Abstraction has 223 states and 303 transitions. [2018-11-22 22:13:18,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-22 22:13:18,667 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 303 transitions. [2018-11-22 22:13:18,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-22 22:13:18,668 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:13:18,668 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] [2018-11-22 22:13:18,668 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:13:18,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:13:18,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1508054310, now seen corresponding path program 1 times [2018-11-22 22:13:18,669 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 22:13:18,669 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-22 22:13:18,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:13:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:13:18,984 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:13:19,039 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 22:13:19,039 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 22:13:19,044 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 [2018-11-22 22:13:19,093 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 22:13:19,099 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-22 22:13:19,100 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-22 22:13:19,113 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 [2018-11-22 22:13:19,119 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 [2018-11-22 22:13:19,119 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-22 22:13:19,122 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 22:13:19,125 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 22:13:19,139 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. [2018-11-22 22:13:19,140 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2018-11-22 22:13:19,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:13:19,233 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 22:13:19,243 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:13:19,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-22 22:13:19,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-22 22:13:19,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-22 22:13:19,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-22 22:13:19,244 INFO L87 Difference]: Start difference. First operand 223 states and 303 transitions. Second operand 7 states. [2018-11-22 22:13:19,457 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-22 22:13:30,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:13:30,984 INFO L93 Difference]: Finished difference Result 235 states and 314 transitions. [2018-11-22 22:13:31,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 22:13:31,099 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-22 22:13:31,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:13:31,102 INFO L225 Difference]: With dead ends: 235 [2018-11-22 22:13:31,102 INFO L226 Difference]: Without dead ends: 225 [2018-11-22 22:13:31,103 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-22 22:13:31,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2018-11-22 22:13:31,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 223. [2018-11-22 22:13:31,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-11-22 22:13:31,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 302 transitions. [2018-11-22 22:13:31,121 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 302 transitions. Word has length 24 [2018-11-22 22:13:31,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:13:31,122 INFO L480 AbstractCegarLoop]: Abstraction has 223 states and 302 transitions. [2018-11-22 22:13:31,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-22 22:13:31,122 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 302 transitions. [2018-11-22 22:13:31,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-22 22:13:31,122 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:13:31,123 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] [2018-11-22 22:13:31,123 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:13:31,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:13:31,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1331011426, now seen corresponding path program 1 times [2018-11-22 22:13:31,123 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 22:13:31,123 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/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 [2018-11-22 22:13:31,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:13:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:13:31,306 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:13:31,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:13:31,395 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 22:13:31,404 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:13:31,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-22 22:13:31,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-22 22:13:31,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-22 22:13:31,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-22 22:13:31,405 INFO L87 Difference]: Start difference. First operand 223 states and 302 transitions. Second operand 7 states. [2018-11-22 22:13:41,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:13:41,373 INFO L93 Difference]: Finished difference Result 273 states and 362 transitions. [2018-11-22 22:13:41,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 22:13:41,373 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-22 22:13:41,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:13:41,375 INFO L225 Difference]: With dead ends: 273 [2018-11-22 22:13:41,375 INFO L226 Difference]: Without dead ends: 262 [2018-11-22 22:13:41,375 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-22 22:13:41,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2018-11-22 22:13:41,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 223. [2018-11-22 22:13:41,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-11-22 22:13:41,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 299 transitions. [2018-11-22 22:13:41,391 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 299 transitions. Word has length 26 [2018-11-22 22:13:41,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:13:41,391 INFO L480 AbstractCegarLoop]: Abstraction has 223 states and 299 transitions. [2018-11-22 22:13:41,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-22 22:13:41,391 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 299 transitions. [2018-11-22 22:13:41,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-22 22:13:41,392 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:13:41,394 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] [2018-11-22 22:13:41,394 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:13:41,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:13:41,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1134497921, now seen corresponding path program 1 times [2018-11-22 22:13:41,395 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 22:13:41,395 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/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 [2018-11-22 22:13:41,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:13:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:13:41,591 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:13:41,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:13:41,699 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 22:13:41,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:13:41,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-22 22:13:41,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-22 22:13:41,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-22 22:13:41,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-22 22:13:41,710 INFO L87 Difference]: Start difference. First operand 223 states and 299 transitions. Second operand 7 states. [2018-11-22 22:13:54,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:13:54,917 INFO L93 Difference]: Finished difference Result 230 states and 306 transitions. [2018-11-22 22:13:54,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 22:13:54,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-22 22:13:54,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:13:54,919 INFO L225 Difference]: With dead ends: 230 [2018-11-22 22:13:54,919 INFO L226 Difference]: Without dead ends: 222 [2018-11-22 22:13:54,919 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-22 22:13:54,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-11-22 22:13:54,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2018-11-22 22:13:54,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-11-22 22:13:54,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 296 transitions. [2018-11-22 22:13:54,931 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 296 transitions. Word has length 26 [2018-11-22 22:13:54,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:13:54,932 INFO L480 AbstractCegarLoop]: Abstraction has 222 states and 296 transitions. [2018-11-22 22:13:54,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-22 22:13:54,932 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 296 transitions. [2018-11-22 22:13:54,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-22 22:13:54,933 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:13:54,933 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] [2018-11-22 22:13:54,933 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:13:54,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:13:54,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1554998657, now seen corresponding path program 1 times [2018-11-22 22:13:54,934 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 22:13:54,934 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-22 22:13:54,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:13:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:13:55,757 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:14:09,691 WARN L180 SmtUtils]: Spent 3.96 s on a formula simplification that was a NOOP. DAG size: 6 [2018-11-22 22:14:26,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:14:26,208 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 22:14:26,224 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:14:26,224 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-22 22:14:26,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-22 22:14:26,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-22 22:14:26,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=52, Unknown=5, NotChecked=0, Total=72 [2018-11-22 22:14:26,225 INFO L87 Difference]: Start difference. First operand 222 states and 296 transitions. Second operand 9 states. [2018-11-22 22:14:58,303 WARN L180 SmtUtils]: Spent 9.63 s on a formula simplification that was a NOOP. DAG size: 9 [2018-11-22 22:16:17,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:16:17,236 INFO L93 Difference]: Finished difference Result 229 states and 303 transitions. [2018-11-22 22:16:17,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-22 22:16:17,555 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-11-22 22:16:17,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:16:17,556 INFO L225 Difference]: With dead ends: 229 [2018-11-22 22:16:17,556 INFO L226 Difference]: Without dead ends: 222 [2018-11-22 22:16:17,557 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 60.4s TimeCoverageRelationStatistics Valid=33, Invalid=116, Unknown=7, NotChecked=0, Total=156 [2018-11-22 22:16:17,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-11-22 22:16:17,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2018-11-22 22:16:17,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-11-22 22:16:17,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 295 transitions. [2018-11-22 22:16:17,567 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 295 transitions. Word has length 30 [2018-11-22 22:16:17,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:16:17,568 INFO L480 AbstractCegarLoop]: Abstraction has 222 states and 295 transitions. [2018-11-22 22:16:17,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-22 22:16:17,568 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 295 transitions. [2018-11-22 22:16:17,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-22 22:16:17,568 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:16:17,568 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] [2018-11-22 22:16:17,568 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:16:17,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:16:17,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1358485152, now seen corresponding path program 1 times [2018-11-22 22:16:17,569 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 22:16:17,569 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/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 [2018-11-22 22:16:17,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:16:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:16:17,739 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:16:17,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:16:17,850 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 22:16:17,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:16:17,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-22 22:16:17,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-22 22:16:17,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-22 22:16:17,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-22 22:16:17,860 INFO L87 Difference]: Start difference. First operand 222 states and 295 transitions. Second operand 9 states. [2018-11-22 22:16:27,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:16:27,736 INFO L93 Difference]: Finished difference Result 229 states and 302 transitions. [2018-11-22 22:16:27,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-22 22:16:27,737 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-11-22 22:16:27,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:16:27,739 INFO L225 Difference]: With dead ends: 229 [2018-11-22 22:16:27,739 INFO L226 Difference]: Without dead ends: 221 [2018-11-22 22:16:27,739 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-22 22:16:27,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-11-22 22:16:27,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2018-11-22 22:16:27,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-11-22 22:16:27,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 293 transitions. [2018-11-22 22:16:27,752 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 293 transitions. Word has length 30 [2018-11-22 22:16:27,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:16:27,752 INFO L480 AbstractCegarLoop]: Abstraction has 221 states and 293 transitions. [2018-11-22 22:16:27,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-22 22:16:27,752 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 293 transitions. [2018-11-22 22:16:27,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-22 22:16:27,753 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:16:27,753 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] [2018-11-22 22:16:27,753 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:16:27,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:16:27,753 INFO L82 PathProgramCache]: Analyzing trace with hash 177608929, now seen corresponding path program 1 times [2018-11-22 22:16:27,754 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 22:16:27,754 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/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 [2018-11-22 22:16:27,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:16:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:16:28,101 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:16:31,206 WARN L180 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-11-22 22:16:35,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:16:35,795 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 22:16:35,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:16:35,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-22 22:16:35,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-22 22:16:35,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-22 22:16:35,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=56, Unknown=1, NotChecked=0, Total=72 [2018-11-22 22:16:35,808 INFO L87 Difference]: Start difference. First operand 221 states and 293 transitions. Second operand 9 states. [2018-11-22 22:16:42,531 WARN L180 SmtUtils]: Spent 2.15 s on a formula simplification that was a NOOP. DAG size: 8 [2018-11-22 22:17:08,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:17:08,953 INFO L93 Difference]: Finished difference Result 228 states and 300 transitions. [2018-11-22 22:17:08,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-22 22:17:08,954 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-11-22 22:17:08,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:17:08,955 INFO L225 Difference]: With dead ends: 228 [2018-11-22 22:17:08,955 INFO L226 Difference]: Without dead ends: 221 [2018-11-22 22:17:08,955 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=33, Invalid=122, Unknown=1, NotChecked=0, Total=156 [2018-11-22 22:17:08,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-11-22 22:17:08,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2018-11-22 22:17:08,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-11-22 22:17:08,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 292 transitions. [2018-11-22 22:17:08,969 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 292 transitions. Word has length 30 [2018-11-22 22:17:08,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:17:08,969 INFO L480 AbstractCegarLoop]: Abstraction has 221 states and 292 transitions. [2018-11-22 22:17:08,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-22 22:17:08,970 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 292 transitions. [2018-11-22 22:17:08,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-22 22:17:08,970 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:17:08,970 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] [2018-11-22 22:17:08,970 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:17:08,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:17:08,971 INFO L82 PathProgramCache]: Analyzing trace with hash -2140142452, now seen corresponding path program 1 times [2018-11-22 22:17:08,971 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 22:17:08,971 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/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 [2018-11-22 22:17:08,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:17:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:17:09,188 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:17:09,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:17:09,396 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 22:17:09,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:17:09,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-22 22:17:09,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-22 22:17:09,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-22 22:17:09,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-22 22:17:09,409 INFO L87 Difference]: Start difference. First operand 221 states and 292 transitions. Second operand 8 states. [2018-11-22 22:17:09,931 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-11-22 22:17:10,156 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2018-11-22 22:17:15,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:17:15,507 INFO L93 Difference]: Finished difference Result 446 states and 586 transitions. [2018-11-22 22:17:15,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-22 22:17:15,508 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-11-22 22:17:15,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:17:15,509 INFO L225 Difference]: With dead ends: 446 [2018-11-22 22:17:15,510 INFO L226 Difference]: Without dead ends: 296 [2018-11-22 22:17:15,510 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-11-22 22:17:15,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2018-11-22 22:17:15,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 242. [2018-11-22 22:17:15,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-11-22 22:17:15,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 323 transitions. [2018-11-22 22:17:15,524 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 323 transitions. Word has length 32 [2018-11-22 22:17:15,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:17:15,525 INFO L480 AbstractCegarLoop]: Abstraction has 242 states and 323 transitions. [2018-11-22 22:17:15,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-22 22:17:15,525 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 323 transitions. [2018-11-22 22:17:15,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-22 22:17:15,525 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:17:15,526 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] [2018-11-22 22:17:15,526 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:17:15,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:17:15,526 INFO L82 PathProgramCache]: Analyzing trace with hash -109987180, now seen corresponding path program 1 times [2018-11-22 22:17:15,527 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 22:17:15,527 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5e3e200-e43b-41a3-83f4-1e844a65c6d9/bin-2019/utaipan/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 [2018-11-22 22:17:15,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:17:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:17:15,835 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:17:15,874 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 22:17:15,875 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 22:17:15,876 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 22:17:15,876 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 22:17:15,877 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 76 [2018-11-22 22:17:16,078 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2018-11-22 22:17:16,079 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_3 (_ bv4 32) ((_ extract 63 32) |v_q#valueAsBitvector_30|)) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:219) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:210) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.convert(DerPreprocessor.java:142) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:253) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:211) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) 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) [2018-11-22 22:17:16,081 INFO L168 Benchmark]: Toolchain (without parser) took 279627.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Free memory was 949.7 MB in the beginning and 892.8 MB in the end (delta: 56.9 MB). Peak memory consumption was 257.7 MB. Max. memory is 11.5 GB. [2018-11-22 22:17:16,081 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:17:16,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. [2018-11-22 22:17:16,082 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.21 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-22 22:17:16,082 INFO L168 Benchmark]: Boogie Preprocessor took 62.49 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-22 22:17:16,083 INFO L168 Benchmark]: RCFGBuilder took 41319.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 109.3 MB). Peak memory consumption was 109.3 MB. Max. memory is 11.5 GB. [2018-11-22 22:17:16,083 INFO L168 Benchmark]: TraceAbstraction took 237809.58 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.3 MB). Free memory was 1.0 GB in the beginning and 892.8 MB in the end (delta: 117.0 MB). Peak memory consumption was 178.3 MB. Max. memory is 11.5 GB. [2018-11-22 22:17:16,086 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 410.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.21 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.49 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 41319.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 109.3 MB). Peak memory consumption was 109.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 237809.58 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.3 MB). Free memory was 1.0 GB in the beginning and 892.8 MB in the end (delta: 117.0 MB). Peak memory consumption was 178.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_3 (_ bv4 32) ((_ extract 63 32) |v_q#valueAsBitvector_30|)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_3 (_ bv4 32) ((_ extract 63 32) |v_q#valueAsBitvector_30|)): de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...