./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0874.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0874.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY --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 8c405523cac8e5f9cc9432e526f7ec96d6e0134414c1ccc7da7da81ae6ee7579 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:27:52,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:27:52,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:27:52,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:27:52,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:27:52,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:27:52,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:27:52,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:27:52,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:27:52,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:27:52,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:27:52,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:27:52,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:27:52,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:27:52,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:27:52,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:27:52,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:27:52,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:27:52,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:27:52,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:27:52,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:27:52,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:27:52,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:27:52,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:27:52,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:27:52,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:27:52,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:27:52,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:27:52,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:27:52,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:27:52,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:27:52,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:27:52,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:27:52,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:27:52,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:27:52,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:27:52,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:27:52,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:27:52,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:27:52,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:27:52,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:27:52,469 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 07:27:52,520 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:27:52,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:27:52,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:27:52,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:27:52,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:27:52,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:27:52,531 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:27:52,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:27:52,532 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:27:52,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:27:52,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:27:52,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:27:52,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:27:52,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:27:52,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:27:52,534 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:27:52,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:27:52,535 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:27:52,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:27:52,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:27:52,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:27:52,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:27:52,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:27:52,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:27:52,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:27:52,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:27:52,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:27:52,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:27:52,538 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:27:52,540 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:27:52,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:27:52,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:27:52,541 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_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c405523cac8e5f9cc9432e526f7ec96d6e0134414c1ccc7da7da81ae6ee7579 [2021-11-07 07:27:52,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:27:52,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:27:52,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:27:52,876 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:27:52,877 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:27:52,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/float-newlib/double_req_bl_0874.c [2021-11-07 07:27:52,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/data/a2e7d68f0/018f1754a48548d9806d3a76aa1ef8fb/FLAGce22b510e [2021-11-07 07:27:53,550 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:27:53,550 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/sv-benchmarks/c/float-newlib/double_req_bl_0874.c [2021-11-07 07:27:53,562 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/data/a2e7d68f0/018f1754a48548d9806d3a76aa1ef8fb/FLAGce22b510e [2021-11-07 07:27:53,853 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/data/a2e7d68f0/018f1754a48548d9806d3a76aa1ef8fb [2021-11-07 07:27:53,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:27:53,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:27:53,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:27:53,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:27:53,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:27:53,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:27:53" (1/1) ... [2021-11-07 07:27:53,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15b437b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:53, skipping insertion in model container [2021-11-07 07:27:53,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:27:53" (1/1) ... [2021-11-07 07:27:53,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:27:53,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:27:54,205 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:1712) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$42(StandardFunctionHandler.java:365) 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:2000) 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:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) 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) [2021-11-07 07:27:54,221 INFO L168 Benchmark]: Toolchain (without parser) took 360.96 ms. Allocated memory is still 100.7 MB. Free memory was 58.0 MB in the beginning and 74.0 MB in the end (delta: -16.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:27:54,222 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory is still 75.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:27:54,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.89 ms. Allocated memory is still 100.7 MB. Free memory was 57.8 MB in the beginning and 74.0 MB in the end (delta: -16.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:27:54,224 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory is still 75.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 356.89 ms. Allocated memory is still 100.7 MB. Free memory was 57.8 MB in the beginning and 74.0 MB in the end (delta: -16.2 MB). Peak memory consumption was 8.4 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_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0874.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY --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 8c405523cac8e5f9cc9432e526f7ec96d6e0134414c1ccc7da7da81ae6ee7579 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:27:56,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:27:56,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:27:56,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:27:56,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:27:56,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:27:56,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:27:56,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:27:56,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:27:56,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:27:56,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:27:56,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:27:56,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:27:56,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:27:56,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:27:56,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:27:56,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:27:56,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:27:56,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:27:56,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:27:56,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:27:56,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:27:56,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:27:56,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:27:56,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:27:56,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:27:56,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:27:56,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:27:56,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:27:56,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:27:56,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:27:56,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:27:56,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:27:56,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:27:56,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:27:56,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:27:56,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:27:56,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:27:56,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:27:56,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:27:56,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:27:56,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-07 07:27:56,804 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:27:56,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:27:56,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:27:56,805 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:27:56,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:27:56,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:27:56,808 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:27:56,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:27:56,809 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:27:56,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:27:56,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:27:56,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:27:56,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:27:56,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:27:56,811 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 07:27:56,811 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 07:27:56,812 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:27:56,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:27:56,812 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:27:56,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:27:56,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:27:56,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:27:56,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:27:56,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:27:56,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:27:56,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:27:56,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:27:56,815 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-07 07:27:56,815 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 07:27:56,815 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:27:56,815 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:27:56,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:27:56,816 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:27:56,816 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 07:27:56,816 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_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c405523cac8e5f9cc9432e526f7ec96d6e0134414c1ccc7da7da81ae6ee7579 [2021-11-07 07:27:57,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:27:57,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:27:57,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:27:57,226 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:27:57,227 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:27:57,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/float-newlib/double_req_bl_0874.c [2021-11-07 07:27:57,293 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/data/dffbd4d7c/8487b9ecba8e47e09ff014b579615d58/FLAG3c5d7f15a [2021-11-07 07:27:57,861 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:27:57,862 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/sv-benchmarks/c/float-newlib/double_req_bl_0874.c [2021-11-07 07:27:57,880 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/data/dffbd4d7c/8487b9ecba8e47e09ff014b579615d58/FLAG3c5d7f15a [2021-11-07 07:27:58,187 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/data/dffbd4d7c/8487b9ecba8e47e09ff014b579615d58 [2021-11-07 07:27:58,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:27:58,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:27:58,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:27:58,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:27:58,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:27:58,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:27:58" (1/1) ... [2021-11-07 07:27:58,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ae2459f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:58, skipping insertion in model container [2021-11-07 07:27:58,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:27:58" (1/1) ... [2021-11-07 07:27:58,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:27:58,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:27:58,753 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_d0774428-6344-47eb-b31c-d5c0b5ee75c7/sv-benchmarks/c/float-newlib/double_req_bl_0874.c[14411,14424] [2021-11-07 07:27:58,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:27:58,771 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:27:58,955 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_d0774428-6344-47eb-b31c-d5c0b5ee75c7/sv-benchmarks/c/float-newlib/double_req_bl_0874.c[14411,14424] [2021-11-07 07:27:58,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:27:58,993 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:27:58,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:58 WrapperNode [2021-11-07 07:27:58,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:27:58,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:27:58,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:27:58,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:27:59,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:58" (1/1) ... [2021-11-07 07:27:59,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:58" (1/1) ... [2021-11-07 07:27:59,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:27:59,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:27:59,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:27:59,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:27:59,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:58" (1/1) ... [2021-11-07 07:27:59,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:58" (1/1) ... [2021-11-07 07:27:59,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:58" (1/1) ... [2021-11-07 07:27:59,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:58" (1/1) ... [2021-11-07 07:27:59,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:58" (1/1) ... [2021-11-07 07:27:59,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:58" (1/1) ... [2021-11-07 07:27:59,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:58" (1/1) ... [2021-11-07 07:27:59,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:27:59,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:27:59,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:27:59,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:27:59,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:58" (1/1) ... [2021-11-07 07:27:59,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:27:59,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:27:59,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:27:59,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:27:59,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-07 07:27:59,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-07 07:27:59,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 07:27:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:27:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-07 07:27:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 07:27:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:27:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:27:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 07:27:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:29:02,592 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:29:02,593 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-11-07 07:29:02,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:29:02 BoogieIcfgContainer [2021-11-07 07:29:02,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:29:02,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:29:02,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:29:02,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:29:02,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:27:58" (1/3) ... [2021-11-07 07:29:02,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be094e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:29:02, skipping insertion in model container [2021-11-07 07:29:02,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:58" (2/3) ... [2021-11-07 07:29:02,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be094e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:29:02, skipping insertion in model container [2021-11-07 07:29:02,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:29:02" (3/3) ... [2021-11-07 07:29:02,611 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0874.c [2021-11-07 07:29:02,623 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:29:02,624 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 07:29:02,710 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:29:02,727 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 [2021-11-07 07:29:02,727 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 07:29:02,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 222 states, 220 states have (on average 1.7181818181818183) internal successors, (378), 221 states have internal predecessors, (378), 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) [2021-11-07 07:29:02,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 07:29:02,789 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:29:02,790 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:02,790 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:29:02,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:02,798 INFO L85 PathProgramCache]: Analyzing trace with hash -264009365, now seen corresponding path program 1 times [2021-11-07 07:29:02,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:29:02,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539631902] [2021-11-07 07:29:02,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:02,821 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:29:02,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:29:02,828 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:29:02,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 07:29:03,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:03,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 07:29:03,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:03,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:03,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:29:03,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:03,835 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:29:03,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539631902] [2021-11-07 07:29:03,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539631902] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:03,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:29:03,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 07:29:03,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169160240] [2021-11-07 07:29:03,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 07:29:03,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:29:03,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 07:29:03,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 07:29:03,871 INFO L87 Difference]: Start difference. First operand has 222 states, 220 states have (on average 1.7181818181818183) internal successors, (378), 221 states have internal predecessors, (378), 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 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) [2021-11-07 07:29:03,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:03,929 INFO L93 Difference]: Finished difference Result 442 states and 754 transitions. [2021-11-07 07:29:03,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 07:29:03,931 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2021-11-07 07:29:03,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:29:03,947 INFO L225 Difference]: With dead ends: 442 [2021-11-07 07:29:03,948 INFO L226 Difference]: Without dead ends: 218 [2021-11-07 07:29:03,952 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 07:29:03,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-07 07:29:04,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2021-11-07 07:29:04,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 217 states have (on average 1.3640552995391706) internal successors, (296), 217 states have internal predecessors, (296), 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) [2021-11-07 07:29:04,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 296 transitions. [2021-11-07 07:29:04,017 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 296 transitions. Word has length 17 [2021-11-07 07:29:04,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:29:04,018 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 296 transitions. [2021-11-07 07:29:04,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) [2021-11-07 07:29:04,019 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 296 transitions. [2021-11-07 07:29:04,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 07:29:04,021 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:29:04,021 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, 1] [2021-11-07 07:29:04,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 07:29:04,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:29:04,254 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:29:04,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:04,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1586530375, now seen corresponding path program 1 times [2021-11-07 07:29:04,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:29:04,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843326091] [2021-11-07 07:29:04,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:04,257 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:29:04,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:29:04,259 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:29:04,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 07:29:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:04,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 07:29:04,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:07,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:07,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:29:14,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:14,141 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:29:14,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843326091] [2021-11-07 07:29:14,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843326091] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:14,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:29:14,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-07 07:29:14,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715401722] [2021-11-07 07:29:14,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 07:29:14,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:29:14,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 07:29:14,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-07 07:29:14,147 INFO L87 Difference]: Start difference. First operand 218 states and 296 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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) [2021-11-07 07:29:29,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:29,077 INFO L93 Difference]: Finished difference Result 351 states and 468 transitions. [2021-11-07 07:29:29,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:29:29,264 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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 22 [2021-11-07 07:29:29,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:29:29,266 INFO L225 Difference]: With dead ends: 351 [2021-11-07 07:29:29,266 INFO L226 Difference]: Without dead ends: 152 [2021-11-07 07:29:29,268 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-07 07:29:29,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-11-07 07:29:29,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 144. [2021-11-07 07:29:29,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.2377622377622377) internal successors, (177), 143 states have internal predecessors, (177), 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) [2021-11-07 07:29:29,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 177 transitions. [2021-11-07 07:29:29,305 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 177 transitions. Word has length 22 [2021-11-07 07:29:29,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:29:29,306 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 177 transitions. [2021-11-07 07:29:29,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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) [2021-11-07 07:29:29,307 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 177 transitions. [2021-11-07 07:29:29,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 07:29:29,309 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:29:29,310 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, 1, 1, 1] [2021-11-07 07:29:29,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:29,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:29:29,532 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:29:29,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:29,533 INFO L85 PathProgramCache]: Analyzing trace with hash 199776244, now seen corresponding path program 1 times [2021-11-07 07:29:29,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:29:29,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336769903] [2021-11-07 07:29:29,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:29,535 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:29:29,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:29:29,536 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:29:29,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 07:29:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:30,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 07:29:30,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:30,915 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 [2021-11-07 07:29:36,239 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 07:29:36,240 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 [2021-11-07 07:30:05,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:05,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:30:20,788 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 [2021-11-07 07:30:20,865 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 [2021-11-07 07:30:31,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:31,494 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:30:31,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336769903] [2021-11-07 07:30:31,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336769903] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:30:31,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:30:31,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-07 07:30:31,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486056795] [2021-11-07 07:30:31,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-07 07:30:31,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:30:31,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-07 07:30:31,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=257, Unknown=6, NotChecked=0, Total=306 [2021-11-07 07:30:31,499 INFO L87 Difference]: Start difference. First operand 144 states and 177 transitions. Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 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) [2021-11-07 07:32:59,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:59,260 INFO L93 Difference]: Finished difference Result 169 states and 199 transitions. [2021-11-07 07:32:59,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 07:32:59,261 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 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 24 [2021-11-07 07:32:59,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:59,264 INFO L225 Difference]: With dead ends: 169 [2021-11-07 07:32:59,264 INFO L226 Difference]: Without dead ends: 158 [2021-11-07 07:32:59,265 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 79.8s TimeCoverageRelationStatistics Valid=125, Invalid=518, Unknown=7, NotChecked=0, Total=650 [2021-11-07 07:32:59,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-07 07:32:59,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 142. [2021-11-07 07:32:59,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.2127659574468086) internal successors, (171), 141 states have internal predecessors, (171), 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) [2021-11-07 07:32:59,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 171 transitions. [2021-11-07 07:32:59,282 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 171 transitions. Word has length 24 [2021-11-07 07:32:59,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:59,282 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 171 transitions. [2021-11-07 07:32:59,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 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) [2021-11-07 07:32:59,283 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 171 transitions. [2021-11-07 07:32:59,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 07:32:59,284 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:59,284 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, 1, 1, 1] [2021-11-07 07:32:59,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 07:32:59,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:32:59,500 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:32:59,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:59,501 INFO L85 PathProgramCache]: Analyzing trace with hash -609570382, now seen corresponding path program 1 times [2021-11-07 07:32:59,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:32:59,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618669151] [2021-11-07 07:32:59,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:59,502 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:32:59,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:32:59,503 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:32:59,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0774428-6344-47eb-b31c-d5c0b5ee75c7/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 07:33:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:00,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-07 07:33:00,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:33:02,117 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 [2021-11-07 07:33:08,331 INFO L354 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2021-11-07 07:33:08,332 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 99 treesize of output 93 [2021-11-07 07:33:12,981 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 07:33:12,981 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 99 treesize of output 99 [2021-11-07 07:33:13,270 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 18 treesize of output 12 [2021-11-07 07:33:20,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:20,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:33:51,737 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 07:33:51,738 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 [2021-11-07 07:33:52,790 INFO L354 Elim1Store]: treesize reduction 18, result has 65.4 percent of original size [2021-11-07 07:33:52,791 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 [2021-11-07 07:33:53,427 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 07:33:53,427 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 153 treesize of output 171 [2021-11-07 07:33:53,758 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 07:33:53,758 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 156 treesize of output 155 [2021-11-07 07:33:55,607 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 07:33:55,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2021-11-07 07:33:55,949 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-07 07:33:56,720 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-11-07 07:33:56,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 1 [2021-11-07 07:33:59,794 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