./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0876.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0876.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b12ad43dcef9bdc0311576ea572488b026584491d49ef5bf04de4ece861047f6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:41:07,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:41:07,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:41:07,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:41:07,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:41:07,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:41:07,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:41:07,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:41:07,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:41:07,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:41:07,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:41:07,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:41:07,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:41:07,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:41:07,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:41:07,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:41:07,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:41:07,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:41:07,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:41:07,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:41:07,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:41:07,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:41:07,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:41:07,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:41:07,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:41:07,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:41:07,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:41:07,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:41:07,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:41:07,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:41:07,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:41:07,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:41:07,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:41:07,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:41:07,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:41:07,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:41:07,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:41:07,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:41:07,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:41:07,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:41:07,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:41:07,558 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 09:41:07,605 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:41:07,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:41:07,611 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:41:07,611 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:41:07,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:41:07,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:41:07,621 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:41:07,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:41:07,621 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:41:07,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:41:07,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:41:07,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:41:07,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:41:07,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:41:07,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:41:07,622 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:41:07,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:41:07,623 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:41:07,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:41:07,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:41:07,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:41:07,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:41:07,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:41:07,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:41:07,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:41:07,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:41:07,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:41:07,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 09:41:07,625 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:41:07,625 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:41:07,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:41:07,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:41:07,626 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b12ad43dcef9bdc0311576ea572488b026584491d49ef5bf04de4ece861047f6 [2021-11-09 09:41:07,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:41:08,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:41:08,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:41:08,016 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:41:08,018 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:41:08,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2021-11-09 09:41:08,113 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/data/8ef4f2661/a1c07a03eda640d5b0c07eb2b2cce300/FLAGe40e16737 [2021-11-09 09:41:08,868 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:41:08,872 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2021-11-09 09:41:08,889 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/data/8ef4f2661/a1c07a03eda640d5b0c07eb2b2cce300/FLAGe40e16737 [2021-11-09 09:41:09,114 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/data/8ef4f2661/a1c07a03eda640d5b0c07eb2b2cce300 [2021-11-09 09:41:09,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:41:09,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:41:09,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:41:09,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:41:09,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:41:09,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:41:09" (1/1) ... [2021-11-09 09:41:09,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@104a1a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:09, skipping insertion in model container [2021-11-09 09:41:09,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:41:09" (1/1) ... [2021-11-09 09:41:09,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:41:09,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:41:09,458 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1724) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$43(StandardFunctionHandler.java:377) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2007) 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:1629) 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:1068) 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:1606) 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:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) 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:3254) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2328) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-09 09:41:09,465 INFO L168 Benchmark]: Toolchain (without parser) took 344.91 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 69.1 MB in the beginning and 94.6 MB in the end (delta: -25.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 09:41:09,466 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 98.6 MB. Free memory was 53.9 MB in the beginning and 53.9 MB in the end (delta: 54.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:41:09,467 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.01 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 68.9 MB in the beginning and 94.6 MB in the end (delta: -25.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 09:41:09,470 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 98.6 MB. Free memory was 53.9 MB in the beginning and 53.9 MB in the end (delta: 54.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 342.01 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 68.9 MB in the beginning and 94.6 MB in the end (delta: -25.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0876.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b12ad43dcef9bdc0311576ea572488b026584491d49ef5bf04de4ece861047f6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:41:12,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:41:12,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:41:12,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:41:12,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:41:12,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:41:12,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:41:12,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:41:12,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:41:12,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:41:12,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:41:12,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:41:12,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:41:12,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:41:12,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:41:12,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:41:12,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:41:12,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:41:12,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:41:12,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:41:12,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:41:12,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:41:12,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:41:12,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:41:12,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:41:12,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:41:12,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:41:12,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:41:12,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:41:12,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:41:12,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:41:12,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:41:12,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:41:12,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:41:12,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:41:12,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:41:12,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:41:12,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:41:12,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:41:12,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:41:12,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:41:12,194 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-09 09:41:12,247 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:41:12,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:41:12,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:41:12,248 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:41:12,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:41:12,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:41:12,251 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:41:12,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:41:12,251 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:41:12,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:41:12,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:41:12,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:41:12,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:41:12,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:41:12,253 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-09 09:41:12,254 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-09 09:41:12,254 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:41:12,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:41:12,254 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:41:12,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:41:12,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:41:12,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:41:12,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:41:12,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:41:12,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:41:12,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:41:12,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:41:12,256 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-09 09:41:12,256 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-09 09:41:12,256 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:41:12,257 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:41:12,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:41:12,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:41:12,257 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-09 09:41:12,258 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b12ad43dcef9bdc0311576ea572488b026584491d49ef5bf04de4ece861047f6 [2021-11-09 09:41:12,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:41:12,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:41:12,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:41:12,765 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:41:12,766 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:41:12,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2021-11-09 09:41:12,864 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/data/a89c77d87/b178b96136214dccb1317729d7d720f8/FLAG227119383 [2021-11-09 09:41:13,642 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:41:13,642 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2021-11-09 09:41:13,663 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/data/a89c77d87/b178b96136214dccb1317729d7d720f8/FLAG227119383 [2021-11-09 09:41:13,884 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/data/a89c77d87/b178b96136214dccb1317729d7d720f8 [2021-11-09 09:41:13,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:41:13,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:41:13,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:41:13,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:41:13,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:41:13,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:41:13" (1/1) ... [2021-11-09 09:41:13,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19195cd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:13, skipping insertion in model container [2021-11-09 09:41:13,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:41:13" (1/1) ... [2021-11-09 09:41:13,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:41:13,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:41:14,414 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/sv-benchmarks/c/float-newlib/double_req_bl_0876.c[14628,14641] [2021-11-09 09:41:14,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:41:14,434 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:41:14,570 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/sv-benchmarks/c/float-newlib/double_req_bl_0876.c[14628,14641] [2021-11-09 09:41:14,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:41:14,603 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:41:14,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:14 WrapperNode [2021-11-09 09:41:14,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:41:14,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:41:14,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:41:14,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:41:14,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:14" (1/1) ... [2021-11-09 09:41:14,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:14" (1/1) ... [2021-11-09 09:41:14,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:41:14,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:41:14,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:41:14,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:41:14,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:14" (1/1) ... [2021-11-09 09:41:14,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:14" (1/1) ... [2021-11-09 09:41:14,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:14" (1/1) ... [2021-11-09 09:41:14,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:14" (1/1) ... [2021-11-09 09:41:14,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:14" (1/1) ... [2021-11-09 09:41:14,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:14" (1/1) ... [2021-11-09 09:41:14,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:14" (1/1) ... [2021-11-09 09:41:14,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:41:14,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:41:14,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:41:14,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:41:14,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:14" (1/1) ... [2021-11-09 09:41:14,936 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:41:14,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:41:14,968 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:41:15,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:41:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-09 09:41:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-09 09:41:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-09 09:41:15,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:41:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-09 09:41:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-09 09:41:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:41:15,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:41:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-09 09:41:15,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 09:42:14,508 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:42:14,509 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-11-09 09:42:14,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:42:14 BoogieIcfgContainer [2021-11-09 09:42:14,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:42:14,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:42:14,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:42:14,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:42:14,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:41:13" (1/3) ... [2021-11-09 09:42:14,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a516785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:42:14, skipping insertion in model container [2021-11-09 09:42:14,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:14" (2/3) ... [2021-11-09 09:42:14,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a516785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:42:14, skipping insertion in model container [2021-11-09 09:42:14,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:42:14" (3/3) ... [2021-11-09 09:42:14,522 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0876.c [2021-11-09 09:42:14,528 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:42:14,528 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 09:42:14,578 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:42:14,586 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 09:42:14,586 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 09:42:14,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 221 states have (on average 1.7194570135746607) internal successors, (380), 222 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:42:14,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-09 09:42:14,633 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:42:14,633 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:42:14,634 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:42:14,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:42:14,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1484062990, now seen corresponding path program 1 times [2021-11-09 09:42:14,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:42:14,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683035680] [2021-11-09 09:42:14,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:42:14,666 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:42:14,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:42:14,670 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:42:14,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-09 09:42:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:42:15,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-09 09:42:15,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:42:15,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:42:15,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:42:15,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:42:15,987 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:42:15,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683035680] [2021-11-09 09:42:15,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683035680] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:42:15,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:42:15,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-09 09:42:16,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371124607] [2021-11-09 09:42:16,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 09:42:16,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:42:16,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 09:42:16,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:42:16,035 INFO L87 Difference]: Start difference. First operand has 223 states, 221 states have (on average 1.7194570135746607) internal successors, (380), 222 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:42:16,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:42:16,094 INFO L93 Difference]: Finished difference Result 444 states and 758 transitions. [2021-11-09 09:42:16,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:42:16,095 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-09 09:42:16,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:42:16,108 INFO L225 Difference]: With dead ends: 444 [2021-11-09 09:42:16,108 INFO L226 Difference]: Without dead ends: 219 [2021-11-09 09:42:16,114 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:42:16,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-11-09 09:42:16,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2021-11-09 09:42:16,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.3669724770642202) internal successors, (298), 218 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:42:16,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 298 transitions. [2021-11-09 09:42:16,169 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 298 transitions. Word has length 15 [2021-11-09 09:42:16,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:42:16,170 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 298 transitions. [2021-11-09 09:42:16,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:42:16,170 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 298 transitions. [2021-11-09 09:42:16,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-09 09:42:16,171 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:42:16,171 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:42:16,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-09 09:42:16,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:42:16,387 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:42:16,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:42:16,388 INFO L85 PathProgramCache]: Analyzing trace with hash 441555186, now seen corresponding path program 1 times [2021-11-09 09:42:16,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:42:16,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246986687] [2021-11-09 09:42:16,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:42:16,390 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:42:16,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:42:16,391 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:42:16,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-09 09:42:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:42:16,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 09:42:16,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:42:19,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:42:19,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:42:24,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:42:24,561 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:42:24,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246986687] [2021-11-09 09:42:24,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246986687] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:42:24,562 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:42:24,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-09 09:42:24,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57910773] [2021-11-09 09:42:24,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 09:42:24,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:42:24,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 09:42:24,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-09 09:42:24,566 INFO L87 Difference]: Start difference. First operand 219 states and 298 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:42:35,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:42:35,403 INFO L93 Difference]: Finished difference Result 354 states and 474 transitions. [2021-11-09 09:42:35,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:42:35,555 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-09 09:42:35,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:42:35,557 INFO L225 Difference]: With dead ends: 354 [2021-11-09 09:42:35,557 INFO L226 Difference]: Without dead ends: 154 [2021-11-09 09:42:35,559 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-09 09:42:35,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-09 09:42:35,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 145. [2021-11-09 09:42:35,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.2430555555555556) internal successors, (179), 144 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:42:35,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 179 transitions. [2021-11-09 09:42:35,574 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 179 transitions. Word has length 19 [2021-11-09 09:42:35,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:42:35,574 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 179 transitions. [2021-11-09 09:42:35,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:42:35,575 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 179 transitions. [2021-11-09 09:42:35,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-09 09:42:35,576 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:42:35,576 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:42:35,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-09 09:42:35,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:42:35,795 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:42:35,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:42:35,796 INFO L85 PathProgramCache]: Analyzing trace with hash 654842519, now seen corresponding path program 1 times [2021-11-09 09:42:35,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:42:35,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12421733] [2021-11-09 09:42:35,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:42:35,796 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:42:35,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:42:35,798 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:42:35,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-09 09:42:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:42:36,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-09 09:42:36,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:42:37,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2021-11-09 09:42:41,467 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-09 09:42:41,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 43 [2021-11-09 09:43:09,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:43:09,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:43:24,546 INFO L388 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 51 treesize of output 45 [2021-11-09 09:43:24,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2021-11-09 09:43:35,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:43:35,137 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:43:35,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12421733] [2021-11-09 09:43:35,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12421733] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:43:35,138 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:43:35,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-09 09:43:35,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424998694] [2021-11-09 09:43:35,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-09 09:43:35,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:43:35,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-09 09:43:35,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=252, Unknown=11, NotChecked=0, Total=306 [2021-11-09 09:43:35,141 INFO L87 Difference]: Start difference. First operand 145 states and 179 transitions. Second operand has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:45:07,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:45:07,612 INFO L93 Difference]: Finished difference Result 173 states and 207 transitions. [2021-11-09 09:45:07,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-09 09:45:07,614 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-09 09:45:07,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:45:07,616 INFO L225 Difference]: With dead ends: 173 [2021-11-09 09:45:07,616 INFO L226 Difference]: Without dead ends: 161 [2021-11-09 09:45:07,617 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 79.6s TimeCoverageRelationStatistics Valid=125, Invalid=514, Unknown=11, NotChecked=0, Total=650 [2021-11-09 09:45:07,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-11-09 09:45:07,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 143. [2021-11-09 09:45:07,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.2183098591549295) internal successors, (173), 142 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:45:07,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 173 transitions. [2021-11-09 09:45:07,633 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 173 transitions. Word has length 21 [2021-11-09 09:45:07,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:45:07,645 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 173 transitions. [2021-11-09 09:45:07,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:45:07,646 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 173 transitions. [2021-11-09 09:45:07,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-09 09:45:07,647 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:45:07,647 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:45:07,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-09 09:45:07,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:45:07,863 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:45:07,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:45:07,864 INFO L85 PathProgramCache]: Analyzing trace with hash 656689561, now seen corresponding path program 1 times [2021-11-09 09:45:07,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:45:07,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876888909] [2021-11-09 09:45:07,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:45:07,865 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:45:07,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:45:07,866 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:45:07,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8cc6c7-08d3-4351-9cbb-88f1dc18e188/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-09 09:45:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:45:08,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-09 09:45:08,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:45:09,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2021-11-09 09:45:15,110 INFO L354 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2021-11-09 09:45:15,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 92 [2021-11-09 09:45:18,956 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-09 09:45:18,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 104 [2021-11-09 09:45:19,241 INFO L388 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2021-11-09 09:45:25,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:45:25,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:45:53,189 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-09 09:45:53,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 150 treesize of output 135 [2021-11-09 09:45:54,206 INFO L354 Elim1Store]: treesize reduction 18, result has 65.4 percent of original size [2021-11-09 09:45:54,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 153 [2021-11-09 09:45:54,467 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-09 09:45:54,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 138 treesize of output 137 [2021-11-09 09:45:55,127 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-09 09:45:55,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 155 [2021-11-09 09:45:58,280 INFO L388 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31